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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-101 |
| Subject |
Colored aesthetic semitransparent Organic Solar Cells using Optical Filters as Electrodes |
| Authors |
Jieun Son, Youngji Kim, Jerome Hyun*
Chemistry Department of Nano-Science, Ewha Womans University, Korea
|
| Abstract |
Semitransparent and colorful organic photovoltaic cells (OPVs) are promising candidates for applications in self-powered aesthetic windows and Building-integrated photovoltaics (BIPVs). Generally, the colors in OPVs have been determined by the absorption characteristics of the active material, requiring one to use different active materials to achieve distinct colors. However, such a strategy presents challenges in fabrication, costs and implementation as different processes are necessary to produce differently colored OPVs. Moreover, the photovoltaic performance varies for differently colored OPVs. Here, we present a simple solution by incorporating a transmissive Fabry-Perot-type color filter (CF) as the electrode in an OPV employing one type of active material. From this modification, we achieve widely tunable colors with high spectral purity, peak transmission efficiencies surpassing 25% at the expense of charge generation that is only a fraction of that of an opaque OPV, and uniformity in device performance irrespective of transmitted color. Because the CF is spatially removed from the charge generation and transport pathway, the optical characteristics are largely separated from the electronic characteristics. This provides one the freedom to explore inventive optical designs without having to consider the electronic properties. Furthermore, integration of CFs into OPVs ensures the transmitted colors to be bidirectional, and easily scalable, providing characteristics suitable for use in aesthetically colorful power generating windows. |
| E-mail |
jieun059@naver.com |
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121st General Meeting of the KCS