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Photodetectors: Fabrication of Ultrathin Bi 2 S 3 Nanosheets for High‐Performance, Flexible, Visible–NIR Photodetectors (Small 24/2015)
Author(s) -
Chen Guihuan,
Yu Yongqiang,
Zheng Kun,
Ding Tao,
Wang Wenliang,
Jiang Yang,
Yang Qing
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201570138
Subject(s) - photodetector , fabrication , materials science , optoelectronics , specific detectivity , visible spectrum , nanotechnology , dark current , alternative medicine , pathology , medicine
Simple drop‐deposition of ultrathin Bi 2 S 3 nanosheets allows the low‐cost construction of excellent flexible photodetectors. On page 2848, Q. Yang and co‐workers report a simple organometallic route to ultrathin Bi 2 S 3 nanosheets with thicknesses down to 2.2 nm. The nanosheets can be applied for the fabrication of photoconductors that show high sensitivity to visible–NIR light from 405 to 780 nm with a high external photoresponsivity up to 4.4 A W −1 , a high detectivity of 1011 Jones, a response time as fast as 10 μs, and high flexibility and durability.