气候变化领域集成服务门户(CCPortal): Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%

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DOI	10.1039/c6ee02851a
	Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%
	Kumari T.; Lee S.M.; Kang S.-H.; Chen S.; Yang C.
发表日期	2017
ISSN	17545692
起始页码	258
结束页码	265
卷号	10 期号:1
英文摘要	Ternary organic solar cells (OSCs), with a simple structure, can be easily adopted as sub-cells in a tandem design, thereby further enhancing the power conversion efficiency (PCE). Considering the potential to surpass the theoretical PCE limit in OSCs, we incorporated a benzo[1,2-b;4,5-b′]dithiophene-based small molecule into a 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):[6,6]-phenyl-C71-butyric acid methyl ester host system. A hitherto unrealized PCE of 12.1% was achieved at the optimized composition of the ternary blend. The ternary blend surprisingly had a face-on and edge-on co-existent texture, which is far better than that of the face-on orientated host film. To the best of our knowledge, this intriguing result refutes for the first time a general paradigm that high-performance OSCs are unambiguously linked to face-on structures. Therefore, our study provides a new platform for refining the theoretical underpinning of multiple blending OSCs. © The Royal Society of Chemistry 2017.
英文关键词	Blending; Butyric acid; Carboxylation; Efficiency; Organic solar cells; Methyl esters; Power conversion efficiencies; Simple structures; Small molecules; Sub-cells; Ternary blends; Solar cells; energy efficiency; fuel cell; optimization; orientation; performance assessment; power generation; solar power; underpinning
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190589
作者单位	Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan, 44919, South Korea
推荐引用方式 GB/T 7714	Kumari T.,Lee S.M.,Kang S.-H.,et al. Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%[J],2017,10(1).
APA	Kumari T.,Lee S.M.,Kang S.-H.,Chen S.,&Yang C..(2017).Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%.Energy & Environmental Science,10(1).
MLA	Kumari T.,et al."Ternary solar cells with a mixed face-on and edge-on orientation enable an unprecedented efficiency of 12.1%".Energy & Environmental Science 10.1(2017).