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Journal of Photonics for Energy

Optimization of transparent electrode processing conditions for bulk heterojunction solar cells
Author(s): Yechuan Sun; Annie Ng; Man Kin Fung; Alan Man Ching Ng; Aleksandra B. Djurišic; Wai Kin Chan
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Paper Abstract

In this work, semi-transparent inverted polymer solar cells with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate; PEDOT:PSS) top electrodes were fabricated by spin-coating process. Poly(3-hexylthiophene; P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) was used as a model material combination for a bulk heterojunction solar cell, because this material combination has been frequently studied, and its properties and performance have been well established. For enhancing the wetting of P3HT:PCBM blend film, different plasma etching conditions were tried. In addition, different high boiling point organic additives were tried to enhance the conductivity of PEDOT:PSS. The performance of solar cells with different fabrication conditions for the top electrode was compared. The best performance was obtained for Ar plasma etching to improve wetting of PEDOT:PSS and the addition of ethylene glycol to improve conductivity.

Paper Details

Date Published: 2 March 2012
PDF: 7 pages
J. Photon. Energy. 2(1) 021005 doi: 10.1117/1.JPE.2.021005
Published in: Journal of Photonics for Energy Volume 2, Issue 1
Show Author Affiliations
Yechuan Sun, The Univ. of Hong Kong (Hong Kong, China)
Annie Ng, The Univ. of Hong Kong (Hong Kong, China)
Man Kin Fung, The Univ. of Hong Kong (Hong Kong, China)
Alan Man Ching Ng, The Univ. of Hong Kong (Hong Kong, China)
Aleksandra B. Djurišic, The Univ. of Hong Kong (Hong Kong, China)
Wai Kin Chan, The Univ. of Hong Kong (Hong Kong, China)

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