Efficient semitransparent organic solar cells with good color perception and good color rendering by blade coating
| Autor: | Chih Yu Chang, Sheng-fu Horng, ChingSeong Tan, Hsin-Fei Meng, Pei Ting Tsai, Hsiao-Wen Zan, Hin Yong Wong, Chen Yu Wu, Ying Qian Wong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Opacity Organic solar cell Standard illuminant 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Biomaterials Optics Coating Materials Chemistry Electrical and Electronic Engineering Chromaticity business.industry Energy conversion efficiency General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Color rendering index High color engineering Optoelectronics 0210 nano-technology business |
| Zdroj: | Organic Electronics. 43:196-206 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2017.01.003 |
| Popis: | This paper proposes high efficiency semitransparent organic solar cells (OSCs) with good color perception and good color rendering using blade coating technique. We investigate four different polymer blends and first fabricate small area devices with active area of 0.04 cm2, followed by large area devices with active area of 10.8 cm2. Two of the polymer blends, 2,6-Bis(trimethyltin)-4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene:6,6-phenyl C71-butyric acid methyl ester (PBDTTT-CT:PC71BM) and poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b′] dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)]:PC71BM (PBDTTT-EFT:PC71BM) show promising results. For small area devices, semitransparent PBDTTT-CT:PC71BM and semitransparent PBDTTT-EFT:PC71BM achieve a power conversion efficiency (PCE) of 5.2% (opaque PCE = 7.5%) and 5.6% (opaque PCE = 9.4%) respectively. For large area devices, they are found to produce a PCE of 3.8% (opaque PCE = 4.2%) and 5.3% (opaque PCE = 5.9%) respectively. Based on the CIE 1931 chromaticity diagram, semitransparent PBDTTT-CT:PC71BM and semitransparent PBDTTT-EFT:PC71BM are located very close to the standard illuminant D65, indicating good color perception. As for color rendering, they demonstrate high color rendering index (CRI) of 95.4 and 87.1 respectively. These combined high performances indicate high-quality transmitted light, which is suitable for window application. |
| Databáze: | OpenAIRE |
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