Doping Effect of Silole Derivative in Coumarin 30 Photoconductive Film.
- Resource Type
- Article
- Authors
- Sakai, Toshikatsu; Seo, Hokuto; Aihara, Satoshi; Kubota, Misao; Egami, Norifumi; Mori, Keita; Fukuda, Takeshi; Hatano, Ken; Kamata, Norihiko
- Source
- Molecular Crystals & Liquid Crystals. Dec2012, Vol. 568 Issue 1, p74-81. 8p.
- Subject
- *SILOLES
*CHEMICAL derivatives
*DOPING agents (Chemistry)
*PHOTOCONDUCTIVITY
*THIN films
*IMAGE converters
*QUANTUM efficiency
*QUANTUM chemistry
- Language
- ISSN
- 1542-1406
To obtain a highly sensitive and color selective photodetector for an image sensor, silole-derivative-doped coumarin 30 photoconductive films were fabricated. The silole-doped films showed excellent color selectivites only in the blue region of visible light. The dark current in the films decreased when the silole-doping concentration was increased, which reached down to 1.0 × 10−9 A/cm2 at −10 V in the 80%-silole-doped film. The 50%-silole-doped device showed high external quantum efficiency up to 60% along with the excellent color selectivity. [ABSTRACT FROM AUTHOR]