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Spatially nanoconfined N-type polymer semiconductors for stretchable ultrasensitive X-ray detection.
- Source :
-
Nature communications [Nat Commun] 2022 Nov 22; Vol. 13 (1), pp. 7163. Date of Electronic Publication: 2022 Nov 22. - Publication Year :
- 2022
-
Abstract
- Polymer semiconductors are promising candidates for wearable and skin-like X-ray detectors due to their scalable manufacturing, adjustable molecular structures and intrinsic flexibility. Herein, we fabricated an intrinsically stretchable n-type polymer semiconductor through spatial nanoconfinement effect for ultrasensitive X-ray detectors. The design of high-orientation nanofiber structures and dense interpenetrating polymer networks enhanced the electron-transporting efficiency and stability of the polymer semiconductors. The resultant polymer semiconductors exhibited an ultrahigh sensitivity of 1.52 × 10 <superscript>4</superscript> μC Gy <subscript>air</subscript> <superscript>-1</superscript> cm <superscript>-2</superscript> , an ultralow detection limit of 37.7 nGy <subscript>air</subscript> s <superscript>-1</superscript> (comparable to the record-low value of perovskite single crystals), and polymer film X-ray imaging was achieved at a low dose rate of 3.65 μGy <subscript>air</subscript> s <superscript>-1</superscript> (about 1/12 dose rate of the commercial medical chest X-ray diagnosis). Meanwhile, the hybrid semiconductor films could sustain 100% biaxial stretching strain with minimal degeneracy in photoelectrical performances. These results provide insights into future high-performance, low-cost e-skin photoelectronic detectors and imaging.<br /> (© 2022. The Author(s).)
- Subjects :
- X-Rays
Radiography
Skin
Polymers chemistry
Semiconductors
Subjects
Details
- Language :
- English
- ISSN :
- 2041-1723
- Volume :
- 13
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nature communications
- Publication Type :
- Academic Journal
- Accession number :
- 36418862
- Full Text :
- https://doi.org/10.1038/s41467-022-34968-1