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Hydrothermal Synthesis of Aqueous-Soluble Copper Indium Sulfide Nanocrystals and Their Use in Quantum Dot Sensitized Solar Cells
- Source :
- Nanomaterials, Nanomaterials, MDPI, 2020, 10 (7), pp.1252. ⟨10.3390/nano10071252⟩, Nanomaterials, Vol 10, Iss 1252, p 1252 (2020), Nanomaterials, 2020, 10 (7), pp.1252. ⟨10.3390/nano10071252⟩, Volume 10, Issue 7
- Publication Year :
- 2020
- Publisher :
- HAL CCSD, 2020.
-
Abstract
- A facile hydrothermal method to synthesize water-soluble copper indium sulfide (CIS) nanocrystals (NCs) at 150 &deg<br />C is presented. The obtained samples exhibited three distinct photoluminescence peaks in the red, green and blue spectral regions, corresponding to three size fractions, which could be separated by means of size-selective precipitation. While the red and green emitting fractions consist of 4.5 and 2.5 nm CIS NCs, the blue fraction was identified as in situ formed carbon nanodots showing excitation wavelength dependent emission. When used as light absorbers in quantum dot sensitized solar cells, the individual green and red fractions yielded power conversion efficiencies of 2.9% and 2.6%, respectively. With the unfractionated samples, the efficiency values approaching 5% were obtained. This improvement was mainly due to a significantly enhanced photocurrent arising from complementary panchromatic absorption.
- Subjects :
- Materials science
Photoluminescence
Sulfide
General Chemical Engineering
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
quantum dot sensitized solar cells
[CHIM.INOR]Chemical Sciences/Inorganic chemistry
010402 general chemistry
01 natural sciences
7. Clean energy
Article
lcsh:Chemistry
aqueous quantum dots
Hydrothermal synthesis
General Materials Science
fractionation
ComputingMilieux_MISCELLANEOUS
CIS
chemistry.chemical_classification
Photocurrent
Chalcopyrite
[CHIM.MATE]Chemical Sciences/Material chemistry
021001 nanoscience & nanotechnology
Copper
0104 chemical sciences
chalcopyrite
lcsh:QD1-999
chemistry
Quantum dot
visual_art
visual_art.visual_art_medium
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
0210 nano-technology
[CHIM.OTHE]Chemical Sciences/Other
Indium
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Database :
- OpenAIRE
- Journal :
- Nanomaterials, Nanomaterials, MDPI, 2020, 10 (7), pp.1252. ⟨10.3390/nano10071252⟩, Nanomaterials, Vol 10, Iss 1252, p 1252 (2020), Nanomaterials, 2020, 10 (7), pp.1252. ⟨10.3390/nano10071252⟩, Volume 10, Issue 7
- Accession number :
- edsair.doi.dedup.....3d6dee4a13c07ff82950e02d613c0b82
- Full Text :
- https://doi.org/10.3390/nano10071252⟩