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The electric field enhancements by single-walled carbon nanotubes in In2S3/In2O3 photoelectrochemical solar cells
- Authors
- Lee, Jungwoo; Lee, Wonjoo; Park, Eunkyung; Park, Taehee; Nah, Yoon-Chae; Han, Sung-Hwan; Yi, Whikun
- Issue Date
- Apr-2010
- Publisher
- American Institute of Physics
- Keywords
- carbon nanotubes; indium compounds; photoelectrochemical cells; silicon; solar cells; tin compounds
- Citation
- Applied Physics Letters, v.96, no.17, pp 1 - 3
- Pages
- 3
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Applied Physics Letters
- Volume
- 96
- Number
- 17
- Start Page
- 1
- End Page
- 3
- ISSN
- 0003-6951
1077-3118
- Abstract
- Using reverse-field emission (FE) current measurements, we demonstrate enhancement of the electric field by single-walled carbon nanotubes (SWNTs) in In2S3/In2O3 photoelectrochemical solar cells (PECs). In reverse-FE measurements, anode and cathode consists of In2S3/In2O3/(with or without) SWNTs on indium-doped tin oxide substrate and microtexturized tip silicon, respectively. The enhanced FE results for In2S3/In2O3/SWNTs show an electric field approximately two times more than In2S3/In2O3. The beta value (i.e., electric field enhancement factor) of In2S3/In2O3 PECs with SWNT layers is 4950, which is similar to 35.2% higher than that of In2S3/In2O3 PECs without SWNTs (3660). In PECs, the enhanced electric field intensifies the power of electron transfer, which accelerates the electron transfer rate in the cell.
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Related Researcher
- Yi, Whi kun
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF CHEMISTRY)