Efficient and stable organic solar cells via a sequential process

	Efficient and stable organic solar cells via a sequential process
	Cheng, Pei 1,2,3; Yan, Cenqi 4; Wu, Yang 5; Dai, Shuixing 4; Ma, Wei 5; Zhan, Xiaowei 4
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2016
卷号	4 期号:34 页码:8086-8093
英文摘要	Bulk heterojunction (BHJ) organic solar cells (OSCs) have attracted considerable attention in the last two decades. Sequentially solution processed BHJ (s-BHJ) have been developed in recent years. s-BHJ not only maintain some advantages of mixed BHJ (m-BHJ), but also exhibit other advantages over m-BHJ. However, to date, s-BHJ OSCs exhibit relatively lower efficiency and have received much less attention compared with m-BHJ OSCs. Moreover, there have been rare systematic comparisons between m-BHJ and s-BHJ OSCs. In this work, we systematically compare the m-BHJ and s-BHJ OSCs based on a classical system PTB7-TH/PC71BM in terms of film morphology, domain size and purity, molecular orientation and aggregation, vertical phase separation, charge transport, efficiency and stability. The s-BHJ OSCs without additives exhibit efficiencies as high as 8.6%, which is similar to that of m-BHJ OSCs with additives (8.5%) and is the highest reported for sBHJ OSCs. More importantly, the s-BHJ OSCs show much better device stability than the m-BHJ OSCs. This study demonstrates that employing s-BHJ is a promising strategy towards efficient and stable OSCs.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/35404]
专题	化学研究所_有机固体实验室
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Peking Univ, Minist Educ, Coll Engn, Key Lab Polymer Chem & Phys,Dept Mat Sci & Engn, Beijing 100871, Peoples R China 5.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Pei,Yan, Cenqi,Wu, Yang,et al. Efficient and stable organic solar cells via a sequential process[J]. JOURNAL OF MATERIALS CHEMISTRY C,2016,4(34):8086-8093.
APA	Cheng, Pei,Yan, Cenqi,Wu, Yang,Dai, Shuixing,Ma, Wei,&Zhan, Xiaowei.(2016).Efficient and stable organic solar cells via a sequential process.JOURNAL OF MATERIALS CHEMISTRY C,4(34),8086-8093.
MLA	Cheng, Pei,et al."Efficient and stable organic solar cells via a sequential process".JOURNAL OF MATERIALS CHEMISTRY C 4.34(2016):8086-8093.