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Electrospun ZnO Nanofibers‐Based Ultraviolet Detector with High Responsivity
Author(s) -
Zhu Linghui,
Gu Xuehui,
Qu Fengdong,
Zhang Jiaqi,
Feng Caihui,
Zhou Jingran,
Ruan Shengping,
Kang Bonan
Publication year - 2013
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12483
Subject(s) - responsivity , photocurrent , photoconductivity , materials science , ultraviolet , nanofiber , photodetector , optoelectronics , electrospinning , nanomaterials , x ray photoelectron spectroscopy , semiconductor , electrode , ultraviolet light , nanotechnology , chemical engineering , composite material , chemistry , polymer , engineering
In this report, a metal–semiconductor–metal (MSM) ultraviolet photodetector based on ZnO nanofiber film with Au electrodes was demonstrated. The ZnO nanofibers were synthesized via effective electrospinning process and characterized by means of XRD , SEM , XPS , and UV –visible absorption spectra. At 5 V bias, the dark current of the device was 17.8 nA. Under the irradiation of 260 nm ultraviolet light, the photocurrent could reach 11.5 μA and a high responsivity of 790 A/W was achieved due to the large internal gain. The mechanism of the high internal photoconductive gain was discussed in the article. The experiment presented a general and simple approach to integrate electrospun nanomaterials into photodevices directly.