13 September 2012 Optical properties enhancement in low-bandgap organic solar cells with embedded PEDOT:PSS gratings
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Abstract
Typically, most low bandgap materials have low absorption with wavelength at around 500 nm. Besides, the restrictions of active layer thickness of thin film organic solar cells (OSCs) make the devices reduce to absorb light in long wavelength region (around 700 nm). As absorption would be a joint effect of material band properties and optical structures, well-designed light-trapping strategies for these low-bandgap PSCs will be more useful to further enhance efficiencies. We investigate the change of optical properties and device performances of organic solar cells based on our newly synthesized low-bandgap material with embedded poly-(3,4-ethylenedioxythiophene): poly(styrenesulfonate) PEDOT:PSS grating in the photoactive bulk heterojunction layer.
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Xiaolong Zhu, Xiaolong Zhu, Chuihui Duan, Chuihui Duan, Wallace C. H. Choy, Wallace C. H. Choy, Fengxian Xie, Fengxian Xie, Chuandao Wang, Chuandao Wang, Fei Huang, Fei Huang, Yong Cao, Yong Cao, } "Optical properties enhancement in low-bandgap organic solar cells with embedded PEDOT:PSS gratings", Proc. SPIE 8477, Organic Photovoltaics XIII, 847710 (13 September 2012); doi: 10.1117/12.929518; https://doi.org/10.1117/12.929518
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