Document Detail

Improving the Field-Effect Performance of Bi2 S3 Single Nanowires by an Asymmetric Device Fabrication.
MedLine Citation:
PMID:  25294685     Owner:  NLM     Status:  Publisher    
High-quality Bi2 S3 nanowires are synthesized by chemical vapor deposition and their intrinsic photoresponsive and field-effect characteristics are explored in detail. Among the studied Au-Au, Ag-Ag, and Au-Ag electrode pairs, the device with stepwise band alignment of asymmetric Au-Ag electrodes has the highest mobility. Furthermore, it is shown that light can cause a sevenfold decrease of the on/off ratio. This can be explained by the photoexcited charge carriers that are more beneficial to the increase of Ioff than Ion . The photoresponsive properties of the asymmetric Au-Ag electrode devices were also explored, and the results show a photoconductive gain of seven with a rise time of 2.9 s and a decay time of 1.6 s.
Fangyuan Lu; Renxiong Li; Yan Li; Nengjie Huo; Juehan Yang; Yongtao Li; Bo Li; Shengxue Yang; Zhongming Wei; Jingbo Li
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-7
Journal Detail:
Title:  Chemphyschem : a European journal of chemical physics and physical chemistry     Volume:  -     ISSN:  1439-7641     ISO Abbreviation:  Chemphyschem     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-8     Completed Date:  -     Revised Date:  2014-10-9    
Medline Journal Info:
Nlm Unique ID:  100954211     Medline TA:  Chemphyschem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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