Photodetectors based on small-molecule organic semiconductor crystals

• 来源期刊: 中国物理B（英文版）
• 关键词: small molecule organic semiconductor crystals photodetectors
• 年，卷（期）: 2019,（3）
• 页码范围: 22-35
• 页数: 14页
• 语种: 英文
• DOI: 10.1088/1674-1056/28/3/038102

摘要

Small-molecule organic semiconductor crystals (SMOSCs) combine broadband light absorption (ultraviolet-visible-near infrared) with long exciton diffusion length and high charge carrier mobility.Therefore,they are promising candidates for realizing high-performance photodetectors.Here,after a brief resume of photodetector performance parameters and operation mechanisms,we review the recent advancements in application of SMOSCs as photodetectors,including photoconductors,phototransistors,and photodiodes.More importantly,the SMOSC-based photodetectors are further categorized according to their detection regions that cover a wide range from ultraviolet to near infrared.Finally,challenges and outlooks of SMOSC-based photodetectors are provided.