Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: Ultrasensitive and Highly Selective Photodetections of UV-A Rays Based on Individual Bicrystalline GaN Nanowire
作者: Zhang, Xinglai;  Liu, Baodan;  Liu, Qingyun;  Yang, Wenjin;  Xiong, Changmin;  Li, Jing;  Jiang, Xin
发表日期: 2017-1-25
摘要: The detection of UV-A rays (wavelength of 320-400 nm) using functional semiconductor nanostructures is of great importance in either fundamental research or technological applications. In this work, we report the catalytic synthesis of peculiar bicrystalline GaN nanowires and their utilization for building high-performance optoelectronic nanodevices. The as prepared UV-A photodetector based on individual bicrystalline GaN nanowire demonstrates a fast photoresponse time (144 ms), a high wavelength selectivity (UV-A light response only), an ultrahigh photoresponsivity of 1.74 X 10(7) A/W and EQE of 6.08 X 10(9)%, a sensitivity of 2 X 104%, and a very large on/off ratio of more than two orders, as well as robust photocurrent stability (photocurrent fluctuation of less than 7% among 4000 s), showing predominant advantages in comparison with other peer semiconductor photodetectors. The outstanding optoelectronic performance of the bicrystalline GaN nanowire UV-A photodetector is further analyzed based on a detailed high-resolution transmission electron microscope (HRTEM) study, and the two separated crystal domains within the GaN nanowires, are believed to provide separated and rapid carrier transfer channels. This work paves a solid way toward the integration of high-performance optoelectronic nanodevices based on bicrystalline or horizontally aligned one-dimensional semiconductor nanostructures.
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.

Recommended Citation:
Zhang, Xinglai,Liu, Baodan,Liu, Qingyun,et al. Ultrasensitive And Highly Selective Photodetections Of Uv-a Rays Based On Individual Bicrystalline Gan Nanowire[J]. Acs Applied Materials & Interfaces,2017,9(3):2669-2677.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zhang, Xinglai]'s Articles
 [Liu, Baodan]'s Articles
 [Liu, Qingyun]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zhang, Xinglai]‘s Articles
 [Liu, Baodan]‘s Articles
 [Liu, Qingyun]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
标 题:
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.



Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace