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Journal of Materials Science

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01-03-2014

Enhancement of the power conversion efficiency of polymer solar cells by functionalized single-walled carbon nanotubes decorated with CdSe/ZnS core–shell colloidal quantum dots

Authors: Ting Ni, Jingying Yan, Yurong Jiang, Fan Zou, Li Zhang, Dan Yang, Jinquan Wei, Shengyi Yang, Bingsuo Zou

Published in: Journal of Materials Science | Issue 6/2014

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Abstract

In this paper, we demonstrated an enhanced performance of polymer solar cells by incorporating functionalized single-walled carbon nanotubes (SWCNTs) decorated with CdSe/ZnS core–shell colloidal quantum dots (CQDs) into copolymers of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) as active layer. Short-circuit current density and power conversion efficiency of the ITO/PEDOT:PSS/P3HT:PCBM:(CdSe/ZnS-SWCNTs)/Al solar cells can be enhanced by more than 31 and 23 %, respectively, as compared with the control device ITO/PEDOT:PSS/P3HT:PCBM/Al. This enhancement is due to the high electron-transporting ability of SWCNTs and the increased absorption of CdSe/ZnS CQD in visible region. It shows an applicable way to improve the efficiency of polymer solar cells by incorporating suitable quantity of CQDs-decorated SWCNTs with suitable kinds of CQDs and suitable acid treatment to the SWCNTs.

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Title: Enhancement of the power conversion efficiency of polymer solar cells by functionalized single-walled carbon nanotubes decorated with CdSe/ZnS core–shell colloidal quantum dots
Authors: Ting Ni
Jingying Yan
Yurong Jiang
Fan Zou
Li Zhang
Dan Yang
Jinquan Wei
Shengyi Yang
Bingsuo Zou
Publication date: 01-03-2014
Publisher: Springer US
Published in: Journal of Materials Science / Issue 6/2014
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-013-7953-x

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