title: Bilayer Heterostructured PThTPTI/WS2Photodetectors with High Thermal Stability in Ambient Environment.
abstract: Organic-based photodetectors (PDs) have great potential applications in next-generation portable, low-cost, large-area displays and optical communications. However, for practical applications, they are facing big challenges due to their instabilities in ambient environments, especially under high temperatures. Robust materials and device architectures are highly demanded to overcome the problem. In this report, we employed a donor conjugated polymer PThTPTI and realized thin-film PDs which can stably operate in ambient air under temperatures as high as 300 °C. By adding a discontinuous thin layer of WS2beneath the PThTPTI film, the device photosensitivity is significantly enhanced without loss of the high thermal stability. This work provides new insights in designing novel and stable organic-based devices for future optoelectronic applications.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Zhiwen
authors.initials: Z
authors.lastname: Jin
authors.affiliation: National Center for Nanoscience and Technology , Beijing 100190, P. R. China.
authors.forename: Dan
authors.initials: D
authors.lastname: He
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhou
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Mao
authors.affiliation: National Center for Nanoscience and Technology , Beijing 100190, P. R. China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Liming
authors.initials: L
authors.lastname: Ding
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Jizheng
authors.initials: J
authors.lastname: Wang
keywords: WS2; heterojunction; organic; photodetector; thermal stability