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- Title
Flexible carbon nanotube/mono-crystalline Si thin-film solar cells.
- Authors
Sun, Huanhuan; Wei, Jinquan; Jia, Yi; Cui, Xian; Wang, Kunlin; Wu, Dehai
- Abstract
Flexible heterojunction solar cells were fabricated from carbon nanotubes (CNTs) and mono-crystalline Si thin films at room temperature. The Si thin films with thickness less than 50 μm are prepared by chemically etching Si wafer in a KOH solution. The initial efficiency of the thin-film solar cell varies from approximately 3% to 5%. After doping with a few drops of 1 M HNO, the efficiency increases to 6% with a short-circuit current density of 16.8 mA/cm and a fill factor of 71.5%. The performance of the solar cells depends on the surface state and thickness of Si thin films, as well as the interface of CNT/Si. The flexible CNT/Si thin-film solar cells exhibit good stability in bending-recovery cycles.
- Subjects
CARBON nanotubes; SILICON films; THIN films spectra; SOLAR cells; FLEXIBILITY (Mechanics)
- Publication
Nanoscale Research Letters, 2014, Vol 9, Issue 1, p1
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1186/1556-276X-9-514