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http://dx.doi.org/10.4313/JKEM.2013.26.3.252

Photovoltaic Effect of Polymer Solar Cells Doped with Sensitizing Dye  

Yun, Soo Hong (Department of Electrophysics, Kwangwoon University)
Park, Jae Woo (DaeJin High School)
Huh, Yoon Ho (Department of Electrophysics, Kwangwoon University)
Park, Byoungchoo (Department of Electrophysics, Kwangwoon University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.26, no.3, 2013 , pp. 252-256 More about this Journal
Abstract
We introduced sensitizing dyes into the bulk-heterojunction (BHJ) photovoltaic (PV) layer of polymer solar cells (PSCs). The sensitizing dyes doped were Bis(tetra butyl ammonium) cis-dithio cyanato bis(2,2'-bipyridine-4-carboxylicacid-4'-carboxylate) ruthenium (II) (N719 dye) and the BHJ PV layer used was made of poly (3-hexylthiophene) (P3HT) and phenyl $C_{61}$-butyric acid methyl ester (PCBM). It was found that the N719 dyes increase the photovoltaic performance, i.e., increasing open-circuit voltage and short-circuit current density with improved fill factor. For the P3HT:PCBM PV cells doped with the N719 dyes (0.24 wt%), an increase in power conversion efficiency of 4.0% was achieved, compared to that of the control cells (3.6%) without the N719 dyes.
Keywords
Polymer solar cell; Photovoltaic; Sensitizing dye; Nanomaterials;
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