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Growth of ZnO nanowires on fibers for one-dimensional flexible quantum dot-sensitized solar cells.

Authors
  • Chen, Haining1
  • Zhu, Liqun
  • Liu, Huicong
  • Li, Weiping
  • 1 Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, People's Republic of China. , (China)
Type
Published Article
Journal
Nanotechnology
Publisher
IOP Publishing
Publication Date
Feb 24, 2012
Volume
23
Issue
7
Pages
75402–75402
Identifiers
DOI: 10.1088/0957-4484/23/7/075402
PMID: 22261246
Source
Medline
License
Unknown

Abstract

One-dimensional flexible solar cells were fabricated through vertical growth of ZnO nanowires on freestanding carbon fibers and subsequent deposition of CdS quantum dots (QDs). Under light illumination, excitons were generated in the CdS QDs and dissociated in the ZnO/CdS interface. Photoelectrochemical characterization indicates that fiber quantum dot-sensitized solar cells (QDSCs) could effectively absorb visible light and convert it to electric energy. The photoelectrochemical performance was enhanced after the deposition of a ZnS passivating layer on the CF/ZnO/CdS surface. The highest conversion efficiency of about 0.006% was achieved by the fiber QDSCs. A higher conversion efficiency was expected to be achieved after some important parameters and cell structure were optimized and improved.

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