Defect engineering in two-dimensional perovskite nanowire arrays by europium(iii) doping towards high-performance photodetection. Issue 56 (24th June 2022)

• Record Type: Journal Article
• Authors: Guan, Yuwei; Liang, Jie; Zhao, Yiman; Liu, Zhen; Zhou, Zhonghao; Ji, Shiyang; Jia, Yajun; Hu, Fengqin; Zhao, Yong Sheng
• Is Part Of: Chemical communications. Volume 58:Issue 56(2022)
• Page Start: 7829
• Page End: 7832
• Publication Date: 2022-06-24
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc02758e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We demonstrate high-performance photodetectors based on Eu-doped 2D perovskite nanowire arrays. Thanks to the efficient carrier transport and suppressed trap density, the optimized Eu-doped photodetectors show an excellent responsivity of 6.24 A W −1 . Abstract : We demonstrate high-performance photodetectors based on Eu-doped 2D perovskite nanowire arrays. The pure crystallographic orientation enables efficient carrier transport and the doped Eu ions effectively suppress the trap density in the nanowire arrays. As a result, the optimized Eu-doped photodetectors show an excellent responsivity of 6.24 A W −1, an outstanding specific detectivity of 5.83 × 10 13 Jones and stable photo-switching behavior with a current on/off ratio of 10 3 .