title: Large-area, flexible imaging arrays constructed by light-charge organic memories.
abstract: Existing organic imaging circuits, which offer attractive benefits of light weight, low cost and flexibility, are exclusively based on phototransistor or photodiode arrays. One shortcoming of these photo-sensors is that the light signal should keep invariant throughout the whole pixel-addressing and reading process. As a feasible solution, we synthesized a new charge storage molecule and embedded it into a device, which we call light-charge organic memory (LCOM). In LCOM, the functionalities of photo-sensor and non-volatile memory are integrated. Thanks to the deliberate engineering of electronic structure and self-organization process at the interface, 92% of the stored charges, which are linearly controlled by the quantity of light, retain after 20000 s. The stored charges can also be non-destructively read and erased by a simple voltage program. These results pave the way to large-area, flexible imaging circuits and demonstrate a bright future of small molecular materials in non-volatile memory.
authors: Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry , Chinese Academy of Sciences, Beijing 100190, China.
authors: Lei
authors: L
authors: Zhang
authors: Ti
authors: T
authors: Wu
authors: Yunlong
authors: Y
authors: Guo
authors: Yan
authors: Y
authors: Zhao
authors: Xiangnan
authors: X
authors: Sun
authors: Yugeng
authors: Y
authors: Wen
authors: Gui
authors: G
authors: Yu
authors: Yunqi
authors: Y
authors: Liu