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Some challenges still exist with single-target B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T-cell therapies due to variable or negative BCMA expression, although they have yielded remarkable efficacy in relapsed or refractory multiple myeloma. We developed anti-BCMA/GPRC5D bispecific CARs to mitigate the limitations and potentiate the functions of CAR T cells.

Quantum dot light‐emitting diodes (QLEDs) is one of the most important components in the display field, and different structures have a certain impact on the final performance of the device. Previous QLEDs mainly use ZnO nanocrystals as the electron transport layer (ETL), but the chemical activity of ZnO nanocrystals under electric fields and moisture is not stable enough. To solve this problem, this paper studies the effects of TiO2films with different thicknesses on the luminescence, current density and external quantum efficiency of QLED devices by using magnetron sputtered TiO2as a new ETL. The experimental results show that the 50nm TiO2film achieves the highest external quantum efficiency while maintaining favorable current density and brightness.

This paper introduces a flexible and uniformly‐dispersed quantum dot (QD) color filter (QDCF) fabricated for micro‐LED by photolithography. We studied the condition of PET films and concentration of QDs, the optimized QDCF exhibited high quantum yield (QY) up to over 70%, and a high optical density (OD) over 1.2. The QY increased and then decreased with the increase of the concentration.

Magnesium and its alloys have attracting rising attention as one of biodegradable metallic materials. However, the rapid corrosion and severe localized corrosion still hinder their extensive applications in clinics. In this study, micro-alloying of Ca (≤ 0.1 wt%) into Mg0.5Zn0.2Ge alloy developed in our previous work was explored to further enhance the corrosion resistance and alleviate the localized corrosion of the alloy. The results reveal that the addition of Ca leads to the transformation of the cathodic Mg2Ge phase in Mg0.5Zn0.2Ca alloy into anodic MgCaGe phase in Ca-containing alloys, thereby changing the galvanic couples in alloys during immersion. The preferential dissolution of MgCaGe phase promotes the participation of Ca and Ge into the formation of corrosion products, resulting in the enrichment of Ca and Ge in the outmost of corrosion product layer, which stabilizes and passivates the corrosion product layer on Mg alloy surface. Additionally, the enrichment of Zn at the corrosion interface seems to further hinder the corrosion of Mg matrix. All of these factors confer a slower and more uniform corrosion on Mg0.5Zn0.2GexCa (x< 0.1 wt%) alloy, which provides favorable candidates for the further processing to gain suitable biodegradable Mg alloys.

In this report, ZnSeTe‐based blue bottom‐emitting quantum dot light‐emitting diodes (QLEDs) with optical microcavity design were demonstrated. The microcavity is formed by the top reflective Ag electrode and the bottom semi‐transparent multilayer electrode, ITO/Ag/ITO. The conventional normal QLED device structure is sandwiched between microcavity. The results show the full width at half maximum (FWHM) of the device emission spectrum is reduced to 50% compared to the device without microcavity, and the tail at longer emission wavelengths is notably suppressed.

Quantum dot light‐emitting diodes (QLEDs) have recently demonstrated great potential for next‐generation displays. By optimizing the device structure and film thicknesses, we achieved top‐emitting QLED devices with good performance metrics, including high brightness, efficiency, and low turn‐on voltage. Furthermore, we successfully fabricated single‐color active‐matrix quantum dot light emitting diode (AMQLED) micro display devices by integrating QLED with a Complementary Metal–Oxide– Semiconductor (CMOS) backplane. These devices exhibit high resolution, brightness, and image quality, underscoring the significant commercial value of QLED micro display devices in head‐mounted augmented reality/virtual reality (AR/VR) systems.

We report a 0.39‐in. quantum dot light‐emitting diode (QLED) microdisplay with full high‐definition (FHD, 1920 × 1080) resolution by integrating a red top‐emitting QLED on a complementary metal–oxide–semiconductor (CMOS) backplane. By optimizing the microcavity structure and constructing a suitable energy‐level structure for the QLED devices, the performance of the large‐area (4.9 × 8.7 mm2) top‐emitting device with normal structure reached 13,936 cd/m2of brightness at 5‐V bias with 13.3% external quantum efficiency (EQE). Notably, the optimal device showed a low turn‐on voltage of 1.7 V, which matched well the voltage output of the CMOS backplane. Our work demonstrates the great promise of QLED microdisplays for applications in head‐mounted augmented reality/virtual reality (AR/VR). To improve the performance of top‐emitting QLEDs, the optical architecture of device was optimized by simulation and experiment. The normal structured QLED performed better to match the output voltage of CMOS compared to the inverted device. A 0.39‐in. QLED microdisplay with FHD (1920 × 1080) resolution was fabricated by integrating a red TEQLED on a CMOS backplane.

Artificial neural networks are prone to suffer from catastrophic forgetting. Networks trained on something new tend to rapidly forget what was learned previously, a common phenomenon within connectionist models. In this work, we propose an effective and efficient continual learning framework using random theory, together with Bayes’ rule, to equip a single model with the ability to learn streaming data. The core idea of our framework is to preserve the performance of old tasks by guiding output weights to stay in a region of low error while encountering new tasks. In contrast to the existing continual learning approaches, our main contributions concern (1) closed-formed solutions with detailed theoretical analysis; (2) training continual learners by one-pass observation of samples; (3) remarkable advantages in terms of easy implementation, efficient parameters, fast convergence, and strong task-order robustness. Comprehensive experiments under popular image classification benchmarks, FashionMNIST, CIFAR-100, and ImageNet, demonstrate that our methods predominately outperform the extensive state-of-the-art methods on training speed while maintaining superior accuracy and the number of parameters, in the class incremental learning scenario. Code is available at https://github.com/toil2sweet/CRNet.

From the perspective of network embedding, this paper deeply analyzes the relationship between corporate absorptive capacity, environmental turbulence, and corporate innovation performance. Based on network embedding theory, knowledge management theory, and research data on advanced manufacturing enterprises in the middle reaches of the Yangtze River in China, this paper uses structural equation modeling for empirical analysis. (1) Environmental turbulence affects firms' innovation performance. When the external environment is highly turbulent, consumer demand can force companies to embed in external network organizations to obtain more heterogeneous resources, reduce the innovation cycle, and improve corporate innovation performance. (2) Network embedding can improve the enterprises' innovation performance through knowledge and value chains. (3) Enterprises' absorptive capacity plays an important role in improving innovation performance. Research shows that an enterprise with a stronger absorptive capacity is more able to improve its innovation performance.

With the advent of the era of knowledge economy, knowledge resources have gradually become the core resources for industrial development. For advanced manufacturing, strengthening the knowledge sharing between enterprises has become a key factor of the industry to maintain their core competitiveness. Based on the perspective of knowledge sharing, this study constructs an evolutionary game model among advanced manufacturing enterprises and analyzes the dynamic evolution process of enterprises. The result shows that knowledge spillover effects, excess return distribution, knowledge costs, hidden income, and punishment mechanisms are the main factors influencing the choice of evolutionary strategies for knowledge sharing among enterprises. Based on the analysis results, the study gives some suggestions to encourage advanced manufacturing companies to choose knowledge sharing strategies, to promote the rapid development of advanced manufacturing.

Inkjet printing as an effective patterning deposition technology is very suitable for the fabrication of quantum dot light‐emitting diodes in next‐generation displays. However, there are still many challenges in achieving high efficiency and stability of the printed device. Herein, we reported the inkjet‐printed quantum dot light‐emitting diodes with an external quantum efficiency of over 20% and half lifetime at 1000 cd/m2of 27,000 h for the first time. Such excellent performance is owing to the successfully optimal thickness (seven monolayers) of the extra ZnS shell, which improves the balance of the carries injection to suppress the nonradiative process for inkjet‐printed devices. Overall, this performance from inkjet‐printed quantum dot light‐emitting diodes accelerates the printed device to meet the requirements of practical display and lighting applications. The extra ZnS shell optimal thickness (seven monolayers) of quantum dot is applied to improve the balance of the carries injection to suppress the nonradiative process for inkjet‐printed devices. A high efficiency and stable inkjet‐printed quantum dot light‐emitting diode is also fabricated.

Few studies have described chimeric antigen receptor (CAR) T-cell therapy for patients with B-cell acute lymphoblastic leukemia (B-ALL) with central nervous system leukemia (CNSL) because of concerns regarding poor response and treatment-related neurotoxicity. Our study included 48 patients with relapsed/refractory B-ALL with CNSL to evaluate the efficacy and safety of CD19-specific CAR T cell–based therapy. The infusion resulted in an overall response rate of 87.5% (95% confidence interval [CI], 75.3-94.1) in bone marrow (BM) disease and remission rate of 85.4% (95% CI, 72.8-92.8) in CNSL. With a median follow-up of 11.5 months (range, 1.3-33.3), the median event-free survival was 8.7 months (95% CI, 3.7-18.8), and the median overall survival was 16.0 months (95% CI, 13.5-20.1). The cumulative incidences of relapse in BM and CNS diseases were 31.1% and 11.3%, respectively, at 12 months (P = .040). The treatment was generally well tolerated, with 9 patients (18.8%) experiencing grade ≥3 cytokine release syndrome. Grade 3 to 4 neurotoxic events, which developed in 11 patients (22.9%), were associated with a higher preinfusion disease burden in CNS and were effectively controlled under intensive management. Our results suggest that CD19-specific CAR T cell–based therapy can induce similar high response rates in both BM and CNS diseases. The duration of remission in CNSL was longer than that in BM disease. CD19 CAR T-cell therapy may provide a potential treatment option for previously excluded patients with CNSL, with manageable neurotoxicity. The clinical trials were registered at www.clinicaltrials.gov as #NCT02782351 and www.chictr.org.cn as #ChiCTR-OPN-16008526.

Few studies have described chimeric antigen receptor (CAR) T-cell therapy for patients with B-cell acute lymphoblastic leukemia (B-ALL) with central nervous system leukemia (CNSL) because of concerns regarding poor response and treatment-related neurotoxicity. Our study included 48 patients with relapsed/refractory B-ALL with CNSL to evaluate the efficacy and safety of CD19-specific CAR T cell–based therapy. The infusion resulted in an overall response rate of 87.5% (95% confidence interval [CI], 75.3-94.1) in bone marrow (BM) disease and remission rate of 85.4% (95% CI, 72.8-92.8) in CNSL. With a median follow-up of 11.5 months (range, 1.3-33.3), the median event-free survival was 8.7 months (95% CI, 3.7-18.8), and the median overall survival was 16.0 months (95% CI, 13.5-20.1). The cumulative incidences of relapse in BM and CNS diseases were 31.1% and 11.3%, respectively, at 12 months (P= .040). The treatment was generally well tolerated, with 9 patients (18.8%) experiencing grade ≥3 cytokine release syndrome. Grade 3 to 4 neurotoxic events, which developed in 11 patients (22.9%), were associated with a higher preinfusion disease burden in CNS and were effectively controlled under intensive management. Our results suggest that CD19-specific CAR T cell–based therapy can induce similar high response rates in both BM and CNS diseases. The duration of remission in CNSL was longer than that in BM disease. CD19 CAR T-cell therapy may provide a potential treatment option for previously excluded patients with CNSL, with manageable neurotoxicity. The clinical trials were registered at www.clinicaltrials.govas #NCT02782351 and www.chictr.org.cnas #ChiCTR-OPN-16008526.

Systematic and dynamic humoral immune reconstitution is little-known for patients with relapsed/refractory (R/R) multiple myeloma (MM) who received anti–B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T-cell therapy. We investigated the kinetics of B-cell, normal plasma cell, and immunoglobulin recovery in 40 patients who achieved ongoing response after anti-BCMA CAR T-cell therapy. All patients developed B-cell aplasia and the median duration of B-cell aplasia was 70 days (range, 23-270). The B-cell count reached its nadir on median day 7 and returned to baseline level on median day 97. BCMA+cells in bone marrow turned undetectable on median day 28 (13-159) in 94.87% (37 of 39) of patients. Normal plasma cells in bone marrow were first redetected on median day 212. All patients developed a significant decrease in serum IgG, IgA, and IgM on median day 60. At year 1, recovery of serum IgG, IgM, and IgA was observed in 53.33% (8 of 15; non-IgG MM), 73.08% (19 of 26; non-IgM MM), and 23.81% (5 of 21;non-IgA MM) of the patients, respectively. Median time to IgG, IgM, and IgA recovery were days 386, 254, and not reached during follow-up, respectively. Virus-specific IgG levels decreased with loss of protection. Twenty-three of 40 (57.5%) patients had a total of 44 infection events. There were no infection-related deaths. These results reveal a 7-month aplasia of bone marrow normal plasma cells and longer period of hypogammaglobulinemia, suggesting a profound and lasting humoral immune deficiency after anti-BCMA CAR T-cell therapy, especially for IgA.

Systematic and dynamic humoral immune reconstitution is little-known for patients with relapsed/refractory (R/R) multiple myeloma (MM) who received anti–B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T-cell therapy. We investigated the kinetics of B-cell, normal plasma cell, and immunoglobulin recovery in 40 patients who achieved ongoing response after anti-BCMA CAR T-cell therapy. All patients developed B-cell aplasia and the median duration of B-cell aplasia was 70 days (range, 23-270). The B-cell count reached its nadir on median day 7 and returned to baseline level on median day 97. BCMA+ cells in bone marrow turned undetectable on median day 28 (13-159) in 94.87% (37 of 39) of patients. Normal plasma cells in bone marrow were first redetected on median day 212. All patients developed a significant decrease in serum IgG, IgA, and IgM on median day 60. At year 1, recovery of serum IgG, IgM, and IgA was observed in 53.33% (8 of 15; non-IgG MM), 73.08% (19 of 26; non-IgM MM), and 23.81% (5 of 21;non-IgA MM) of the patients, respectively. Median time to IgG, IgM, and IgA recovery were days 386, 254, and not reached during follow-up, respectively. Virus-specific IgG levels decreased with loss of protection. Twenty-three of 40 (57.5%) patients had a total of 44 infection events. There were no infection-related deaths. These results reveal a 7-month aplasia of bone marrow normal plasma cells and longer period of hypogammaglobulinemia, suggesting a profound and lasting humoral immune deficiency after anti-BCMA CAR T-cell therapy, especially for IgA.

Inconel718 was machined with the traditional micromilling (TMM) and ultrasonic vibration assisted micromilling (UVAMM) with the different technology parameters, whose surface quality and burrs formation were studied. The results show that TMM often forms pits, bumps and gullies in the size effect range. UVAMM effectively improves the surface quality compared with TMM. The surface defects are significantly reduced with the increase of feed per tooth (ƒz). When ƒzexceeds 4 μm, the effect of ultrasonic vibration on the surface quality is no longer obvious. The minimum burr size on the down milling side and the up milling side are 50.23 μm and 36.57 μm, respectively. The feasibility of vibration cutting in improving surface quality and suppressing burr size was verified. UVAMM effectively suppresses the formation of built-up edge, which can significantly improve the micromilling process. The cutting force is obtained through simulation and experiment. They are agreement in the change trend. The finite element simulation can be used to predict the cutting force. Compared with TMM, feeding force (Fx), radial force (Fy) and axial force (Fz) of UVAMM decrease by 7.6%, 11.5% and 1.3%, respectively.

Colloidal PbS quantum dots (QDs) are attractive for solution-processed thin-film optoelectronic applications. In particular, directly achieving QD thin-films by printing is a very promising method for low-cost and large-scale fabrication. The kinetics of QD particles during the deposition process play an important role in the QD film quality and their respective optoelectronic performance. In this work, the particle self-organization behavior of small-sized QDs with an average diameter of 2.88 ± 0.36 nm is investigated for the first time in situduring printing by grazing-incidence small-angle X-ray scattering (GISAXS). The time-dependent changes in peak intensities suggest that the structure formation and phase transition of QD films happen within 30 seconds. The stacking of QDs is initialized by a templating effect, and a face-centered cubic (FCC) film forms in which a superlattice distortion is also found. A body-centered cubic nested FCC stacking is the final QD assembly layout. The small size of the inorganic QDs and the ligand collapse during the solvent evaporation can well explain this stacking behavior. These results provide important fundamental understanding of structure formation of small-sized QD based films prepared vialarge-scale deposition with printing with a slot die coater.

Underground salt cavern (USC) has emerged as an optimal location for large-scale energy storage, encompassing oil, gas, hydrogen, carbon dioxide, and compressed air energy storage (CAES), owing to its inherent advantages of substantial capacity, stability, and hermeticity. However, most salt mines in China are characterized by a relatively thin salt layer thickness, a large number of interlayers and low salt layers grade. Consequently, a substantial proportion of the cavernous space resulting from water solution mining becomes progressively covered by insoluble sediment. Herein, the feasibility of gas storage in two butted-well horizontal (TWH) caverns with sediments, located within the Sanshui salt mine in Guangdong Province, China, is comprehensively analyzed through engineering investigation, physical model experimentation, numerical simulation, and theoretical analysis. Firstly, a theoretical model was developed to calculate the volume of caverns based on salt grade (soluble content). Secondly, a joint physical model experiment and numerical simulation were conducted to obtain the most probable shape of the process for forming water-soluble caverns. Moreover, a novel technology was proposed to utilize sediment space for gas storage in TWH-caverns. Ultimately, the support pressure of surrounding rock was determined by using the passive earth pressure theory, and subsequently, an assessment of cavern stability was conducted. Here, the numerical simulation results demonstrated that in the absence of sediment space utilization, there was a limited capacity for gas storage, resulting in significant deformation of the surrounding rock and an increased level of roof instability. On the contrary, sediment can provide structural support to the surrounding rock, thus increasing its stability (the plastic zone expansion was reduced from 1600 % (0.3 σz), 1345 % (0.35 σz) and 1297 % (0.4 σz) to 109 %, 87 % and 78 %, respectively) and enhancing the capacity for gas storage. Accordingly, this study provides valuable guidance for the assessment of gas storage in low-grade salt sedimentary environments, as well as for the design of gas injection and brine discharge, and stability evaluations.

Using blue Micro‐LED back light and red‐green quantum dot (QD) color converter (QDCC) is a full color display technology with great potential to achieve high resolution, color purity and luminous efficiency. In this work, we try a new method of ligands exchange, using 3‐Mercaptopropionic acid (MPA) ligands with two functional groups to treat QDs in the liquid phase. The modified QDs can be sufficiently dispersed in the negative‐tone molecular resists. In our current process, the pixel size can be reduced to 5 fim and the large‐area ultra‐high‐resolution QDCC with great uniformity is realized.

The concept of high entropy is considered promising to enhance electromagnetic wave absorption properties. However, preparing high-entropy sulfides with unique structures for high-performance electromagnetic absorption remains a challenge. In this study, hierarchical porous flower-like dual-phase sulfides were designed with increased entropy and fabricated using a versatile approach. The porous flower configuration enhanced the scattering of electromagnetic waves and the impedance-matching characteristics. Additionally, the effect of high entropy induced diverse defects that were favorable for electromagnetic wave dissipation in dual-phase sulfides. The design of the dual-phase structure generated strong interface polarization, and the composition and content of the phases exhibited clear changes with the increase in the number of metal elements. Interestingly, apparent lattice distortions, defects, and shear strains were directly observed near the dual-phase interface of millerite (102) and pyrite (220) planes, facilitating the occurrence of dipole polarization. Consequently, the developed dual-phase high-entropy sulfide exhibited outstanding microwave absorption properties. The minimum reflection loss value of (FeCoNiCuZn)S was −45.8 dB at a thickness of 1.5 mm, and the optimal effective absorption bandwidth was 3.8 GHz at a thickness of 1.4 mm thickness. Thus, the design of high-entropy sulfides brings meaningful guidance for tuning the wave absorption properties in sulfides.

The high cost and serious pollution of salt cavern construction (SCC) with fresh water (FW) under oil blanket (OB) poses a major challenge to the development of salt cavern energy storage, and it is of great significance for clean brine mining and efficient SCC to replace FW with light brine (LB) as well as OB with gas blanket (GB). However, the expansion and control of cavern shape after replacement remains unclear, and it also needs to be clarified of the feasibility of SCC with LB. Therefore, the experimental and theoretical research on the physical simulation of SCC with LB under GB was carried out. Firstly, the dissolution test of salt rock in brine was performed, and the effect of brine concentration on the dissolution rate of salt rock was investigated, which provides foundation for the brine preparation of the physical simulation and on-site SCC. Then, based on dimensional analysis and similarity theory, a visual physical simulation platform of SCC under GB was established and five groups of physical simulation experiments were carried out. The effects of tube lifting method and circulation mode on the concentration of withdrawn brine and cavern shape were explored. The relationship between lateral dissolution angle and the effective volume of salt cavern energy storage were analyzed, and the measures and suggestions of controlling lateral dissolution angle and GB were proposed. Finally, the techno-economic analysis of SCC with FW and LB under GB was carried out, which shows that SCC with LB under GB possesses lower cost and better environmental protection. This research can serve as a basis for promoting clean and efficient brine mining and SCC.

Immunoglobulin D (IgD) multiple myeloma (MM) is a rare subtype of MM that carries a worse prognosis than non-IgD subtypes. Compared with non-IgD subtypes, IgD MM is associated with a shorter survival time. The application of chimeric antigen receptor (CAR) T-cell therapy for patients with relapsed or refractory multiple myeloma (R/R MM) has increasing evidence as an efficacious treatment. This study was designed to investigate efficacy and safety of chimeric antigen receptor (CAR) T-cell therapy for relapsed/refractory IgD MM (R/R IgD MM). In this single-arm, phase 2 trial, patients diagnosed with R/R IgD MM were infused with either a combination of anti–B-cell maturation antigen and anti–CD19 CAR T-cells or anti–CD19 CAR T-cells alone, with subsequent evaluation of therapeutic response and treatment-related toxicities. At the data cutoff date, 7 patients were enrolled in our study, and all patients achieved response based on the International Myeloma Working Group Uniform Response Criteria. Six patients achieved stringent complete remission (sCR) within 60 days after CAR T-cell infusion (median time 58 days, range 18 to 90 days), and 1 patient with extramedullary disease achieved minimal response (MR) at 30 days after infusion. Bone marrow minimal residual disease (MRD) negativity was achieved in all patients, and the median time to achieve MRD negativity was 22 days (range 14 to 60 days). The most common grade 3 to 4 treatment-related toxicities were hematological toxicities. All patients experienced cytokine release syndrome (CRS), although CAR T-cell–related neurotoxicity was not observed. In our study, CAR T-cell therapy showed encouraging efficacy in the patients with R/R IgD MM, achieving high rates of sCR and MRD negativity. Aside from CRS and prolonged hematologic toxicities, other adverse reactions were mild, suggesting that this is a well-tolerated treatment with a high therapeutic potential.

•Pre-lymphodepletion absolute lymphocyte count is associated with immediate response after CAR-T cell therapy•Low absolute lymphocyte count prior lymphodepletion is a risk factor of long-term survival•No correlation between cytokine release syndrome and pre-lymphodepletion absolute lymphocyte count

•It is suggested to increase the thickness of the rock salt roof to ensure the stability of the salt cavern gas storage when there are multiple interlayers above the cavern roof.•Under different geological and operating conditions, the waist of the storage and the part that intersects the interlayer deforms largely and receives greater stress.•When the buried depth of the salt cavern gas storage increases, the minimum operating pressure inside it needs to be increased accordingly.•The thickness of the rock salt roof of the salt cavern gas storage at different buried depths has little effect on its stability, but there is a risk of leakage when the roof thickness is small.•Quantitative analysis shows that the buried depth and minimum operating pressure of the salt cavern gas storage are the key factors affecting its stability.

•Large-spacing two-well with gas blanket (LSTW-GB) method can effectively increases the effective cavern volume, improve the cavern construction rate and obtain clear brine.•The place where the gas storage cavern is prone to instability are the roof and the wall rock along short axis direction, which needs attention.•When the ratios of long axis to height of the salt cavern gas storage increases, the minimum operating pressure inside it needs to be increased accordingly•When the ratio of long axis to height is 1.60 ∼ 3.10, the minimum operating pressure of the gas storage should be about 33% ∼ 38% of the gravity stress at the casing shoe.

Colloidal PbS quantum dots (QDs) are promising candidates for various optoelectronic applications based on solution-processed thin-film techniques. In this work, a versatile layer-by-layer (LBL) spray deposition of the QDs is introduced aiming for a future large-scale fabrication process of optoelectronic devices. As compared to spin-coated QD solids, a smaller inter-dot distance and a better-ordered superlattice stacking behavior of the QDs are found in the spray-deposited QD solids as confirmed by grazing-incidence small-angle X-ray scattering (GISAXS). The spectral mapping combined time-resolved photoluminescence analysis indicates a longer charge carrier lifetime and better order of the energy state distribution of the spray-deposited QD solid comparing with the spin-coated one. Thus, photodetectors based on spray deposition of QD solids demonstrate an excellent device performance, with the responsivity achieving 365.1 A/W and the detectivity reaching up to 1.4 × 1012Jones under an illumination power of 63.5 μW/cm2at a wavelength of 1250 nm. The spray-deposited device performances indicate a great potential of spray deposition of large sized QDs in large-scale fabrications for optoelectronics using longer wavelengths.

No relevant conflicts of interest to declare.

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