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- Choi, Moon Kee
- Nano/Bio Electronics Lab.
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Efficiency Improvement of Organic Solar Cells by Tuning Hole Transport Layer with Germanium Oxide
- Author(s)
- Choi, Moon Kee, Kim, Ju-Hyung, Yoon, Hyunsik, Tahk, Dongha, Seo, Soonmin, Shin, Kyusoon, Lee, Hong H.
- Issued Date
- 2012-01
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.1, pp.623 - 628
- Abstract
- Improving optical property is critical for optimizing the power conversion efficiency of organic solar cells. In the present research, we show that modification of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) layer with GeO2 leads to 15% improvement of power conversion efficiency in a polymer solar cells through enhancement of short circuit currents. Modified PEDOT:PSS layer with optimized concentration of GeO2 assists active layer absorbing much light by playing a role of optical spacer. Using AFM and grazing incidence X-ray diffraction (GIXD) data, we also present the evidence that an addition of GeO2 does not affect crystallinity of active layer.
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- ISSN
- 1533-4880
- Keyword (Author)
- Organic Solar Cell, Photovoltaic, Optical Spacer, Organic Bulk-Heterojunction
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