Organic Dye-Sensitized CH3NH3PbI3 Hybrid Flexible Photodetector with Bulk Heterojunction Architectures

Chang-Jiu Teng; Dan Xie; Meng-Xing Sun; Shan Chen; Pu Yang; Yi-Lin Sun

doi:10.1021/acsami.6b09502

Organic Dye-Sensitized CH₃NH₃PbI₃ Hybrid Flexible Photodetector with Bulk Heterojunction Architectures

ACS Appl Mater Interfaces. 2016 Nov 16;8(45):31289-31294. doi: 10.1021/acsami.6b09502. Epub 2016 Nov 8.

Authors

Chang-Jiu Teng¹, Dan Xie¹, Meng-Xing Sun¹, Shan Chen², Pu Yang¹, Yi-Lin Sun¹

Affiliations

¹ Institute of Microelectronics, Tsinghua National Laboratory for Information Science and Technology (TNList), Tsinghua University , Beijing 100084, People's Republic of China.
² Department of Chemistry, Tsinghua University , Beijing 100084, China.

PMID: 27781430
DOI: 10.1021/acsami.6b09502

Abstract

A flexible photodetector based on the bulk heterojunction of an organometallic halide perovskites CH₃NH₃PbI₃ and an organic dye Rhodamine B (RhB) has been fabricated via a solution casting process. It showed a high responsivity (R_max = 43.6 mA/W) to visible lights, short response time (t_r ≈ 60 ms, t_d ≈ 40 ms), high on-off ratio (I_on/I_off ≈ 287) and satisfactory stability because of its Schottky barrier structure and the dye enhanced light absorption.

Keywords: CH3NH3PbI3; Rhodamine B; bulk heterojunction architectures; dye-sensitized; flexible devices; photodetector.