Heterostructured WS 2 /CH 3 NH 3 PbI 3  Photoconductors with Suppressed Dark Current and Enhanced Photodetectivity | Zendy

Ma Chun | Zendy; Shi Yumeng | Zendy; Hu Weijin | Zendy; Chiu MingHui | Zendy; Liu Zhixiong | Zendy; Bera Ashok | Zendy; Li Feng | Zendy; Wang Hong | Zendy; Li LainJong | Zendy; Wu Tom | Zendy

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Heterostructured WS 2 /CH 3 NH 3 PbI 3 Photoconductors with Suppressed Dark Current and Enhanced Photodetectivity

Author(s) -

Ma Chun,

Shi Yumeng,

Hu Weijin,

Chiu MingHui,

Liu Zhixiong,

Bera Ashok,

Li Feng,

Wang Hong,

Li LainJong,

Wu Tom

Publication year - 2016

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201600069

Subject(s) - responsivity , materials science , perovskite (structure) , optoelectronics , photodetector , transition metal , nanotechnology , crystallography , chemistry , catalysis , biochemistry

Heterostructured photoconductors based on hybrid perovskites and 2D transition‐metal dichalcogenides are fabricated and characterized. Due to the superior properties of CH 3 NH 3 PbI 3 and WS 2 , as well as the efficient interfacial charge transfer, such photoconductors show high performance with on/off ratio of ≈10 5 and responsivity of ≈17 A W −1 . Furthermore, the response times of the heterostructured photoconductors are four orders of magnitude faster compared to the counterpart of a perovskite single layer.

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