Citation

Wong, Ying Qian and Meng, Hsin Fei and Wong, Hin Yong and Tan, Ching Seong and Wu, Chen Yu and Tsai, Pei Ting and Chang, Chih Yu and Horng, Sheng Fu and Zan, Hsiao Wen (2017) Efficient semitransparent organic solar cells with good color perception and good color rendering by blade coating. Organic Electronics, 43. pp. 196-205. ISSN 1566-1199

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	Semitransparent, Blade coating, Large area, Organic solar cell, Window application
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	20 Jul 2020 04:04
Last Modified:	20 Jul 2020 04:04
URII:	http://shdl.mmu.edu.my/id/eprint/6944

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