Articles - Formation and characterization of MEH-PPV/PCBM-based bulk heterojunction solar cells
- Takeo Okua,*, Syuichi Nagaokaa, Atsushi Suzukia, Kenji Kikuchia, Yasuhiko Hayashib, Hayato Sakuragib and Tetsuo Sogab
- a Department of Materials Science, The University of Shiga Prefecture, Hassaka 2500, Hikone, Shiga 522-8533, Japan b Department of Environmental Technology & Urban Planning, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
Abstract
Polymer/fullerene bulk heterojunction solar cells with poly[2-methoxy-5-(20-ethylhexoxy)-1,4-phenylenevinylene] (MEH-PPV), zinc-phthalocyanine (ZnPc) and 6,6-phenyl C61-butyric acid methyl ester (PCBM), were produced and characterized. A device based on MEH-PPV and PCBM provided better efficiency, fill factor and short-circuit current compared to those of a device on MEH-PPV(ZnPc) and PCBM. The solar cells with a MEH-PPV and PCBM structure showed a higher photoresponse in the range of 300 to 60 nm. The energy levels of the molecules were calculated and are discussed
Keywords: Solar cells, Fullerene, Chemical synthesis, Semiconductivity
This Article
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