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Infrared Photodetectors and Image Arrays Made with Organic Semiconductors.
- Source :
-
Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) . Oct2023, Vol. 41 Issue 10, p1629-1637. 9p. - Publication Year :
- 2023
-
Abstract
- Combining the strategies of introducing larger heteroatom, regio-regular backbone and extended branching position of side-chain, we developed polymer semiconductors (PPCPD) with narrow band-gap to construct the photosensing layer of thin-film photodiodes and image arrays. The spectral response of the resulting organic photodiodes spans from the near ultra-violet to short-wavelength infrared region. The performance of these short-wavelength infrared photodiodes in 900–1200 nm range achieved a level competitive with that of indium gallium arsenide-based inorganic crystalline detectors, exhibiting a specific detectivity of 5.55×1012 Jones at 1.15 µm. High photodetectivity and quantum efficiency in photodiode with amorphous/nanocrystalline thin-films of 100–200 nm thickness enabled high pixel-density image arrays without pixel-level-patterning in the sensing layer. 1 × 256 linear diode arrays with 25 µm × 25 µm pixel pitch were achieved, enabling high pixel-density short-wavelength infrared imaging at room temperature. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02567679
- Volume :
- 41
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Chinese Journal of Polymer Science (Springer Science & Business Media B.V.)
- Publication Type :
- Academic Journal
- Accession number :
- 172438468
- Full Text :
- https://doi.org/10.1007/s10118-023-2973-8