NIMTE OpenIR  > 2018专题
High-Performance All-Polymer Solar Cells with a High Fill Factor and a Broad Tolerance to the Donor/Acceptor Ratio
Liu, Xiaohui; Zou, Yang; Wang, Hai-Qao; Wang, Lei; Fang, Junfeng; Yang, Chuluo
2018
发表期刊ACS APPLIED MATERIALS & INTERFACES
卷号10期号:44页码:38302-38309
摘要Manipulating the donor/acceptor (D/A) weight ratio is a critical route to produce highly efficient polymer solar cells (PSCs). However, most of the reported device performances are strongly sensitive to the blend ratio. In this work, highly efficient all-PSCs based on PBDB-T:N2200 active layer have been achieved, presenting impressive photovoltaic performance with high tolerance to wide D/A ratios ranging from 1:1 to 9:1, thus providing a broad blend ratio processing window for future practical production. In particular, the optimal device delivers the champion power conversion efficiency (PCE) of 8.61% with an outstanding fill factor (FF) of up to 75.4%, which is one of the highest FF values for the reported binary all-PSCs. Comprehensive morphological, electrical, and mechanism analysis together pointed out that the remarkable device performance are derived from the favorable interpenetrating network morphology, efficient exciton generation/dissociation, well-balanced carrier transport, and reduced bimolecular recombination. Moreover, compared to the small molecule-based and fullerene-based PSC counterparts, the all-PSCs demonstrate an excellent resilience to the D/A ratio, maintaining over 50% of the maximum PCE at a ratio of 49:1 with an extremely low acceptor content. These results depict a bright prospect of the developed all-PSCs for promising applications as flexible and scalable optoelectronic devices.
关键词Power Conversion Efficiency Device Performance Fullerene-polymer Molecular-weight Acceptor Donor Solvent Optimization Morphology Packing
学科领域Chemistry
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17034
专题2018专题
推荐引用方式
GB/T 7714
Liu, Xiaohui,Zou, Yang,Wang, Hai-Qao,et al. High-Performance All-Polymer Solar Cells with a High Fill Factor and a Broad Tolerance to the Donor/Acceptor Ratio[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(44):38302-38309.
APA Liu, Xiaohui,Zou, Yang,Wang, Hai-Qao,Wang, Lei,Fang, Junfeng,&Yang, Chuluo.(2018).High-Performance All-Polymer Solar Cells with a High Fill Factor and a Broad Tolerance to the Donor/Acceptor Ratio.ACS APPLIED MATERIALS & INTERFACES,10(44),38302-38309.
MLA Liu, Xiaohui,et al."High-Performance All-Polymer Solar Cells with a High Fill Factor and a Broad Tolerance to the Donor/Acceptor Ratio".ACS APPLIED MATERIALS & INTERFACES 10.44(2018):38302-38309.
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