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Title:
Single-junction fullerene solar cells with 10% efficiency and high open-circuit voltage approaching 1 V
Author: Zhu, Dangqiang1; Bao, Xichang1; Ouyang, Dan1; Wang, Junyi1; Yuan, Xiyue1; Wang, Qian2; Zhou, Di1; Wen, Shuguang1; Yang, Renqiang1,3
Source: NANO ENERGY
Issued Date: 2017-10-01
Volume: 40, Pages:495-503
Keyword: Polymer solar cell ; Thieno[3, 4-b] thiophene ; D-A(pi)-Q-A(pi) type ; High open-circuit voltage
DOI: 10.1016/j.nanoen.2017.08.062
DOC Type: Article
English Abstract: It has been proven that the introduction of F atom and the replacement of alkyl side-chain with alkylthio substituent could be the effective side-chain strategies, to obtain the deep highest occupied molecular orbital (HOMO) energy level with little influence on the optical absorption, and in turn, the small photo energy loss (E-loss). In this work, we combine the advantages of D-A(pi)-Q-A(pi) strategy and the above side chain engineering, to construct a series of high-performance polymers P1-P3 with high open-circuit voltage (V-OC) of exceeding 0.90 V in the conventional solar cells. Meanwhile, small E(loss)s of 0.73-0.78 eV are achieved accompanying high V-OC and almost unchanged optical bandgaps of similar to 1.70 eV, which are the smaller values in comparison with that of the other high-performance polymer systems. More encouragingly, P2-based solar cells exhibit high PCE of 10.30% and V-OC of 0.97 V, which is one of the highest values for polymer/fullerene based solar cells. Our work not only demonstrates a series of high-efficiency new materials, but also strongly confirms that the combination of D-A(pi)-Q-A(pi) arrangement and rational side chain engineering is a very promising strategy to construct high-performance photovoltaic polymers with reduced energy loss.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Subject Extended: Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS Keyword Plus: POWER CONVERSION EFFICIENCY ; HIGH-PERFORMANCE ; PHOTOVOLTAIC POLYMERS ; CONJUGATED POLYMER ; MOLECULAR-WEIGHT ; DONOR UNIT ; BAND-GAP ; MORPHOLOGY ; COPOLYMERS ; AGGREGATION
Indexed Type: SCI
Funder: National Natural Science Foundation of China(21604092 ; Ministry of Science and Technology of China(2014CB643501 ; China Postdoctoral Science Foundation(2017M610453) ; Youth Innovation Promotion Association CAS(2016194) ; 51573205 ; 2016YFE0115000 ; 51773220) ; 2010DFA52310)
Language: 英语
WOS ID: WOS:000411687800057
Citation statistics:
Content Type: 期刊论文
URI: http://ir.qibebt.ac.cn/handle/337004/9590
Appears in Collections:先进有机功能材料团队_期刊论文

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description.institution: 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Harbin Univ Sci & Technol, Coll Mat Sci & Engn, Harbin 150080, Heilongjiang, Peoples R China
3.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China

Recommended Citation:
Zhu, Dangqiang,Bao, Xichang,Ouyang, Dan,et al. Single-junction fullerene solar cells with 10% efficiency and high open-circuit voltage approaching 1 V[J]. NANO ENERGY,2017,40:495-503.
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