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Proceedings Paper

Efficacious photocurrent generation and carrier transport by quantum dot decorated carbon nanotubes
Author(s): Chandan Biswas; Seung Yol Jeong; Seong Chu Lim; Dong Jae Bae; Young Hee Lee; Hyun Jin Shin; Seon-Mi Yoon; Jae Young Choi; Ok Hwan Cha; Mun Seok Jeong; David Perello; Minhee Yun
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Paper Abstract

CdSe/ZnS core/shell quantum dots have been decorated on thin multiwalled and singlewalled carbon nanotubes (CNTs) by chemical functionalization and substrate gate-bias control. CdSe quantum dots were negatively charged by adding mercaptoacetic acid (MAA). The silicon oxide substrate was decorated by octadecyltrichlorosilane (OTS) and converted to hydrophobic surface. The negatively charged CdSe/ZnS NCs were adsorbed on the SWCNT surface by applying the negative gate bias. The selective adsorption of CdSe/ZnS quantum dots on SWCNTs was confirmed by confocal laser scanning microscope. Quantum dots decorated carbon nanotubes have been used for effective photogenaration and carrier transport through the organic photovoltaic device which has fabricated using effective polymers. The results clearly indicate the efficient photocurrent generation and carrier transport which effectively increased the efficiency of the device for the next generation organic solar cell applications.

Paper Details

Date Published: 3 September 2008
PDF: 6 pages
Proc. SPIE 7052, Organic Photovoltaics IX, 705216 (3 September 2008); doi: 10.1117/12.794423
Show Author Affiliations
Chandan Biswas, Sungkyunkwan Univ. (Korea, Republic of)
Seung Yol Jeong, Sungkyunkwan Univ. (Korea, Republic of)
Seong Chu Lim, Sungkyunkwan Univ. (Korea, Republic of)
Dong Jae Bae, Sungkyunkwan Univ. (Korea, Republic of)
Young Hee Lee, Sungkyunkwan Univ. (Korea, Republic of)
Hyun Jin Shin, Samsung Advanced Institute of Technology (Korea, Republic of)
Seon-Mi Yoon, Samsung Advanced Institute of Technology (Korea, Republic of)
Jae Young Choi, Samsung Advanced Institute of Technology (Korea, Republic of)
Ok Hwan Cha, Advanced Photonics Research Institute, GIST (Korea, Republic of)
Mun Seok Jeong, Advanced Photonics Research Institute, GIST (Korea, Republic of)
David Perello, Univ. of Pittsburgh (United States)
Minhee Yun, Univ. of Pittsburgh (United States)


Published in SPIE Proceedings Vol. 7052:
Organic Photovoltaics IX
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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