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Low Bandgap 2D Perovskite Single Crystal with Anomalous-large Charges/ions Collection Ratio for Ultra-sensitive and Stable X-ray Detectors
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2023-04-03 , DOI: 10.1002/anie.202303445
Keke Guo 1 , Weijun Li 1 , Yuhong He 1 , Xiaopeng Feng 1 , Jinmei Song 1 , Wanting Pan 1 , Wei Qu 1 , Bai Yang 1, 2 , Haotong Wei 1, 2
Affiliation  

The use of Cu2+ ions cross-linking the layers of 2D perovskite can not only reduce the perovskite band gap, but can also selectively improve the charge carriers’ transport along the out-of-plane direction and suppress the ions migration effectively. The [Cu(O2C−(CH2)3−NH3)2]PbBr4 device can reach a record charges/ions collection ratio of 1.69×1018±4.7 % μGyair−1 s, and exhibit an excellent X-ray detection performances.

中文翻译:

用于超灵敏和稳定 X 射线探测器的具有异常大电荷/离子收集比的低带隙二维钙钛矿单晶

利用Cu 2+离子交联二维钙钛矿层不仅可以减小钙钛矿带隙,还可以选择性地改善载流子沿面外方向的传输并有效抑制离子迁移。[Cu(O 2 C−(CH 2 ) 3 −NH 3 ) 2 ]PbBr 4装置可以达到创纪录的电荷/离子收集比1.69×10 18 ±4.7 % μGy air −1  s,并表现出优异的X -射线探测性能。
更新日期:2023-04-03
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