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Characteristics of dual acceptor ternary organic photodetectors based on P3HT:PC61BM:IEICO-4F.
- Source :
-
Journal of Modern Optics . Mar2022, Vol. 69 Issue 6, p336-345. 10p. - Publication Year :
- 2022
-
Abstract
- A new method for realizing the response broadening of organic photodetectors (OPDs) using non-fullerene acceptor IEICO-4F doping has been proposed in this paper. It was found that when the mass ratio of P3HT:IEICO-4F:PC61BM in the active layer was 10:2:8, the spectral response range of OPDs was extended to 400–900 nm. The responsivity (R) and external quantum efficiency (EQE) of ternary OPDs reached 230, 263, 199 mA·W–1 and 46%, 62%, 54% under 630, 530, 460 nm illumination and –1.5 V bias, respectively. The detectivity (D*) reached 1012 Jones. The results showed that the addition of IEICO-4F increased the exciton dissociation interface and improved the dissociation rate of the active layer, thus improving the photocurrent of the device. In addition, the addition of IEICO-4F promoted the crystallization of the film, reduced charge recombination, and thereby reduced the dark current of the device. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ORGANIC bases
*QUANTUM efficiency
*SPECTRAL sensitivity
*PHOTODETECTORS
Subjects
Details
- Language :
- English
- ISSN :
- 09500340
- Volume :
- 69
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Modern Optics
- Publication Type :
- Academic Journal
- Accession number :
- 155832206
- Full Text :
- https://doi.org/10.1080/09500340.2022.2035004