期刊

Advanced Optical Materials

标题

Phototransistors: Hybrid Graphene–Perovskite Phototransistors with Ultrahigh Responsivity and Gain (Advanced Optical Materials 10/2015) (page 1303)

作者

Yusheng Wang, Yupeng Zhang, Yao Lu, Weidong Xu, Haoran Mu, Caiyun Chen, Hong Qiao, Jingchao Song, Shaojuan Li, Baoquan Sun, Yi-Bing Cheng and Qiaoliang Bao

摘要

A hybrid photodetector consisting of monolayer graphene covered with dispersive organolead halide perovskite islands is demonstrated by B. Sun, Y.-B. Cheng, Q. Bao, and co-workers. On page 1389, the photodetector is shown to have a photoconductive gain of ≈109 electrons per photon and a responsivity of ≈6.0 × 105 A W−1. Evidence is provided for charge transfer and photogating. Unlike previous reports on perovskite bulk thin films, these islands have a low recombination rate. The device also shows photodetection across a broad range from 250 to 700 nm.

原文链接

http://onlinelibrary.wiley.com/doi/10.1002/adom.v3.10/issuetoc