Low-Voltage Photodetectors with High Responsivity Based on Solution-Processed Micrometer-Scale All-Inorganic Perovskite Nanoplatelets

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Xuhai LiuHaibo Zeng

Abstract

All-inorganic photodetectors based on scattered CsPbBr3 nanoplatelets with lateral dimension as large as 10 µm are fabricated, and the CsPbBr3 nanoplatelets are solution processed governed by a newly developed ion-exchange soldering mechanism. Under illumination of a 442 nm laser, the photoresponsivity of photodetectors based on these scattered CsPbBr3 nanoplatelets is as high as 34 A W-1 , which is the largest value reported from all-inorganic perovskite photodetectors with an external driven voltage as small as 1.5 V. Moreover, the rise and fall times are 0.6 and 0.9 ms, respectively, which are comparable to most of the state-of-the-art all-inorganic perovskite-based photodetectors. All the material synthesis and device characterization are conducted at room temperature in ambient air. This work demonstrates that the solution-processed large CsPbBr3 nanoplatelets are attractive candidates to be applied in low-voltage, low-cost, ultra highly integrated optoelectronic devices.

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Citations

Apr 24, 2019·Advanced Materials·Azhar FakharuddinLukas Schmidt-Mende
Jun 28, 2019·Advanced Materials·Tao Lin, Jizheng Wang
Dec 22, 2020·Advanced Materials·Hsin-Ping WangJr-Hau He
Mar 21, 2021·Nature Communications·Qian-Bing ZhuDong-Ming Sun
Jan 9, 2019·ACS Applied Materials & Interfaces·Bin XinIman S Roqan
Sep 20, 2017·The Journal of Physical Chemistry Letters·Chengxue HuoHaibo Zeng
Feb 13, 2018·The Journal of Physical Chemistry Letters·Liang LiHuanping Zhou
May 15, 2018·Inorganic Chemistry·Jichao ZhuZewei Quan
Jun 13, 2019·ACS Applied Materials & Interfaces·Tianhao JiangJiansheng Jie
Sep 7, 2021·ACS Applied Materials & Interfaces·Arnab MandalSayan Bhattacharyya
Oct 14, 2021·Chemical Communications : Chem Comm·Xin HuangYunqi Liu

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