High-Performance Non-Fullerene Organic Solar Cells Based on a Pair of Medium Band Gap Polymer Donor and Perylene Bisimide Derivative Acceptor

2016 ◽  
Vol 217 (23) ◽  
pp. 2647-2653 ◽  
Author(s):  
Woosung Lee ◽  
Jae Woong Jung
2015 ◽  
Vol 138 (1) ◽  
pp. 375-380 ◽  
Author(s):  
Dong Meng ◽  
Dan Sun ◽  
Chengmei Zhong ◽  
Tao Liu ◽  
Bingbing Fan ◽  
...  

Author(s):  
Yong Zhao ◽  
Yu Lu ◽  
Yonghai Li ◽  
Xiao Kang ◽  
Xichang Bao ◽  
...  

Most polymer donors developed so far for high-performance non-fullerene OSCs are designed in planar molecular geometries containing BDT units. In this work, two D−A conjugated polymers with wide band gap,...


2018 ◽  
Vol 6 (16) ◽  
pp. 6874-6881 ◽  
Author(s):  
Zhenghui Luo ◽  
Guanghao Li ◽  
Wei Gao ◽  
Kailong Wu ◽  
Zhi-Guo Zhang ◽  
...  

A new nonfullerene electron acceptor of m-MeIC was designed and synthesized, which is effective with different band-gap polymer donors, including wide band-gap J71, medium band-gap PBDB-T and low band-gap PCE-10.


Author(s):  
Congcong Cao ◽  
Hanjian Lai ◽  
Hui Chen ◽  
Yulin Zhu ◽  
Mingrui Pu ◽  
...  

The light harvesting and photocurrent generation from acceptors largely determine the photovoltaic performance of organic solar cells (OSCs). We have designed and prepared two medium band gap non-fullerene acceptors (NFAs),...


2019 ◽  
Vol 01 (01) ◽  
pp. 071-077
Author(s):  
Di Zhou ◽  
Zhilin Liu ◽  
Dangqiang Zhu ◽  
Xiyue Yuan ◽  
Xichang Bao ◽  
...  

How to broaden the optical absorption of photovoltaic materials is one of the key issues in the design of high-performance organic solar cells. Nowadays, the sunlight of 400–550 nm wavelength range is not effectively utilized for most small-molecule nonfullerene acceptors. In this work, we proposed the “spliced” strategy of combining the acceptor–donor–acceptor type narrow band-gap small molecules and wide-band-gap perylene diimide (PDI) moieties via a flexible alkyl chain linkage, which could give the superposition effect of the absorption spectra, and three small-molecule acceptors (S1, S2, and S3) were designed based on various end-capping groups with different electron withdrawing abilities. Encouragingly, the as-constructed molecules can well make use of 400–550 nm sunlight with two independent absorption regions. Meanwhile, the aggregation of S1 with a highly planar end-capping group was dominated by both the PDI unit and main skeleton, while S2 and S3 exhibited PDI-controlled aggregation. When fabricated into organic solar cells, S1-based devices achieved a superior efficiency of 3.41% in comparison with those of the other two. The poor photovoltaic performance could be attributed to severe PDI aggregation, which can hinder the charge transfer through the main skeletons. This work could provide a new perspective to modulate optical absorption through the spliced strategy.


Author(s):  
Min Zhang ◽  
Min Zeng ◽  
Xiong Deng ◽  
Zhijie Zhou ◽  
Xiaoxiao Tan ◽  
...  

2016 ◽  
Vol 3 (9) ◽  
pp. 1600117 ◽  
Author(s):  
Tao Liu ◽  
Dong Meng ◽  
Yunhao Cai ◽  
Xiaobo Sun ◽  
Yan Li ◽  
...  

2013 ◽  
Vol 135 (6) ◽  
pp. 2040-2043 ◽  
Author(s):  
Hongliang Zhong ◽  
Zhe Li ◽  
Florent Deledalle ◽  
Elisa Collado Fregoso ◽  
Munazza Shahid ◽  
...  

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