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Single‐Crystalline CdS Nanobelts for Excellent Field‐Emitters and Ultrahigh Quantum‐Efficiency Photodetectors
Author(s) -
Li Liang,
Wu Peicai,
Fang Xiaosheng,
Zhai Tianyou,
Dai Lun,
Liao Meiyong,
Koide Yasuo,
Wang Hongqiang,
Bando Yoshio,
Golberg Dmitri
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000144
Subject(s) - materials science , photodetector , optoelectronics , quantum efficiency , ultrashort pulse , field (mathematics) , quantum dot , nanotechnology , optics , laser , physics , mathematics , pure mathematics
Single‐crystalline CdS nanobelts demonstrate excellent field‐emission properties for the first time. Individual CdS nanobelts are assembled for high‐performance visible‐light photodetectors with an ultrafast response time of ∼20 μs and ultrahigh quantum efficiency of 1.9 × 10 7 %. The results suggest a high potential of utilizing these CdS nanobelts as optoelectronic nanodevices.