Optical simulations of P3HT/Si nanowire array hybrid solar cells

An optical simulation of poly(3-hexylthiophene) (P3HT)/Si nanowire array (NWA) hybrid solar cells was investigated to evaluate the optical design requirements of the system by using finite-difference time-domain (FDTD) method. Steady improvement of light absorption was obtained with increased P3HT c...

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Bibliographic Details
Published in:Nanoscale research letters 2014-05, Vol.9 (1), p.238-238, Article 238
Main Authors: Wang, Wenbo, Li, Xinhua, Wen, Long, Zhao, Yufeng, Duan, Huahua, Zhou, Bukang, Shi, Tongfei, Zeng, Xuesong, Li, Ning, Wang, Yuqi
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Molecular Medicine
Nano Express
Nanochemistry
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
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Summary:An optical simulation of poly(3-hexylthiophene) (P3HT)/Si nanowire array (NWA) hybrid solar cells was investigated to evaluate the optical design requirements of the system by using finite-difference time-domain (FDTD) method. Steady improvement of light absorption was obtained with increased P3HT coating shell thickness from 0 to 80 nm on Si NWA. Further increasing the thickness caused dramatic decrease of the light absorption. Combined with the analysis of ultimate photocurrents, an optimum geometric structure with a coating P3HT thickness of 80 nm was proposed. At this structure, the hybrid solar cells show the most efficient light absorption. The optimization of the geometric structure and further understanding of the optical characteristics may contribute to the development for the practical experiment of the promising hybrid solar cells.
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/1556-276X-9-238