2 March 2012 Optimization of transparent electrode processing conditions for bulk heterojunction solar cells
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
Yechuan Sun, Annie Ng, Man Kin Fung, Alan Man Ching Ng, Aleksandra B. Djurišic, and Wai Kin Chan "Optimization of transparent electrode processing conditions for bulk heterojunction solar cells," Journal of Photonics for Energy 2(1), 021005 (2 March 2012). https://doi.org/10.1117/1.JPE.2.021005
Published: 2 March 2012

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