期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 9, 期 8, 页码 2043-2048出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.8b00700
关键词
-
类别
资金
- National Science Foundation [CHE-1230246, DMR-1534686, ECCS1665028]
- Ohio Research Scholar Program
Organic inorganic lead halide perovskite microcrystal (MC) films are attractive candidates for fabricating high-performance large-area self-powered photo detectors (PDs) because of their lower trap state density and higher carrier mobility than their polycrystalline counterparts and more suitability of synthesizing large lateral area films than their single-crystal counterparts. Here, we report on the fabrication of self powered all-inorganic CsPbBr3 perovskite MC PDs with high detectivity, using a modified solution synthesis method. The MCs are up to about 10 tem in size, and the MC layer is also about 11 mu m in thickness. Under 473 nm laser (100 mW) illumination, the CsPbBr3 MC PDs show responsivity values of up to 0.172 A W-1, detectivity values of up to 4.8 X 10(12) Jones, on/off ratios of up to 1.3 X 10(5), and linear dynamic ranges of up to 113 dB. These performances are significantly better than those of PDs based on polycrystalline perovskite thin films and comparable with those of PDs based on perovskite single crystals.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据