The electric field enhancements by single-walled carbon nanotubes in In2S3/In2O3 photoelectrochemical solar cells

Lee, Jungwoo; Lee, Wonjoo; Park, Eunkyung; Park, Taehee; Nah, Yoon-Chae; Han, Sung-Hwan; Yi, Whikun

doi:10.1063/1.3405674

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The electric field enhancements by single-walled carbon nanotubes in In2S3/In2O3 photoelectrochemical solar cells

Lee, Jungwoo;
Lee, Wonjoo;
Park, Eunkyung;
Park, Taehee;
Nah, Yoon-Chae;
... Yi, Whikun;
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초록

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.

키워드

carbon nanotubes; indium compounds; photoelectrochemical cells; silicon; solar cells; tin compounds; PHOTOCURRENT; FABRICATION

제목: The electric field enhancements by single-walled carbon nanotubes in In2S3/In2O3 photoelectrochemical solar cells

저자: Lee, Jungwoo; Lee, Wonjoo; Park, Eunkyung; Park, Taehee; Nah, Yoon-Chae; Han, Sung-Hwan; Yi, Whikun

DOI: 10.1063/1.3405674

발행일: 2010-04

유형: Article

저널명: Applied Physics Letters

권: 96

호: 17

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