Organometallic perovskite single crystals grown on lattice-matched substrate for photodetection

Xin Wang; Yuwei Li; Yubing Xu; Yuzhu Pan; Yao Wu; Guanwen Li; Wei Zhang; Shuyi Ding; Jing Chen; Wei Lei; Dewei Zhao

Nano Materials Science (Sep 2020)

Organometallic perovskite single crystals grown on lattice-matched substrate for photodetection

Xin Wang,
Yuwei Li,
Yubing Xu,
Yuzhu Pan,
Yao Wu,
Guanwen Li,
Wei Zhang,
Shuyi Ding,
Jing Chen,
Wei Lei,
Dewei Zhao

Affiliations

Xin Wang: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Yuwei Li: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Yubing Xu: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Yuzhu Pan: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Yao Wu: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Guanwen Li: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China
Wei Zhang: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co. Ltd., ShenZhen, 518132, China; Corresponding author.
Shuyi Ding: School of Information Engineering, Nanjing Normal University Taizhou College, Taizhou, China
Jing Chen: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China; Corresponding author.
Wei Lei: Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, China; Corresponding author.
Dewei Zhao: Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, OH, 43606, United States; Corresponding author.

Journal volume & issue: Vol. 2, no. 3
pp. 292 – 296

Abstract

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In this work, we demonstrate that an organometallic perovskite (OP) single crystal for effective photodetection can be grown on a gold (Au)-decorated substrate using liquid phase epitaxy. The covered gold could both control the shape of the epitaxial layer and act as its electrodes. An MAPbCl3 single crystal and an MAPbBr1.5Cl1.5 single crystal were used as the substrate and the epitaxial layer, respectively. The device, with an Au-perovskite-Au structure, can be fully characterized. Due to the high-quality epitaxial layer, the maximum external quantum efficiency (EQE) value is over 60% under the voltage of −20 V. In addition, the response speed can reach 200 and 500 ns (ns) rise and fall, respectively. Our work provides an effective and promising method to fabricate efficient perovskite-based photodetectors.

Published in Nano Materials Science

ISSN: 2589-9651 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://www.keaipublishing.com/en/journals/nano-materials-science/

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