Boosting the efficiency of PTB7-Th:PC71BM polymer solar cells via a low-cost halogen-free supramolecular solid additive

2020 ◽  
Vol 8 (46) ◽  
pp. 16551-16560
Author(s):  
Qiang Zhang ◽  
Chengjia Bao ◽  
Suqian Cui ◽  
Ping Zhong ◽  
Kai Zhang ◽  
...  

The PTB7-Th/PC71BM-based PSCs exhibit a significantly improved PCE of 8.33% and device stability for the halogen-free solid ROPD additive.

2021 ◽  
Vol 13 (9) ◽  
pp. 11117-11124 ◽  
Author(s):  
Xingpeng Liu ◽  
Ruijie Ma ◽  
Yufei Wang ◽  
Sanshan Du ◽  
Junfeng Tong ◽  
...  

2018 ◽  
Vol 6 (27) ◽  
pp. 12969-12973 ◽  
Author(s):  
Zhiquan Zhang ◽  
Zheling Zhang ◽  
Bin Zhao ◽  
Youhuan Huang ◽  
Jian Xiong ◽  
...  

A low-cost polymer PEIE–DIO without any conjugated units has been prepared as a thickness-insensitive ETL for inverted polymer solar cells.


2019 ◽  
Vol 7 (33) ◽  
pp. 10338-10351 ◽  
Author(s):  
Xuyu Gao ◽  
Jiaxin Gao ◽  
Zhongyuan Xue ◽  
Huabin Wang ◽  
Jingyu Wang ◽  
...  

Fine-tuned crystallinity and optimized morphology were achieved by incorporating 2-dimensional monomer into N2200 resulting in enhanced PCE in various donors-based OSCs and improved device stability.


2015 ◽  
Vol 3 (24) ◽  
pp. 12723-12729 ◽  
Author(s):  
Wenchao Zhao ◽  
Long Ye ◽  
Shaoqing Zhang ◽  
Mingliang Sun ◽  
Jianhui Hou

A high power conversion efficiency over 9.4% was realized in polymer solar cells by halogen-free solvent processing.


2015 ◽  
Vol 11 (4) ◽  
pp. 244-247
Author(s):  
Zheng Chen ◽  
Zhen-bo Deng ◽  
Zhao-yue Lü ◽  
Mao-yang Zhou ◽  
Li-jie Zhu ◽  
...  

2020 ◽  
Vol 3 (3) ◽  
pp. 2604-2613 ◽  
Author(s):  
Dan Yang ◽  
Bing Cao ◽  
Volker Körstgens ◽  
Nitin Saxena ◽  
Nian Li ◽  
...  

2015 ◽  
Vol 748 ◽  
pp. 45-48
Author(s):  
Shi Yan ◽  
Long Feng Lv ◽  
Yan Bing Hou

Bulk-heterojunction polymer solar cells (BHJ-PSCs) have attracted considerable attention because of their unique advantages of lightweight, low cost, mechanical flexibility and suitable for large-area fabrication [1–3]. In the last decades, much attention has been paid to the donor and acceptor system P3HT:PCBM, However, because of the relatively large bandgap of P3HT (∼1.9 eV) and the relatively small energy difference between the lowest unoccupied molecular orbital (LUMO) of PCBM and the highest occupied molecular orbital (HOMO) of P3HT, the photovoltaic performance of the PSCs based on P3HT:PCBM is still significantly lower than the inorganic solar cells. Recently more work has been done on the novel donor materials which have a reduced energy gap with an ability of harvesting more of the sun’s spectral emission and a high charge carriers mobility for charge transport. One of the most promising new donor polymer is poly [N-9"-hepta-decanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3' -benzothiadiazole)] (PCDTBT) with a HOMO level of 5.5eV which is 0.4 eV down-shifted than that of P3HT. When PCDTBT is blended with the fullerene acceptor PC70BM, it showed excellent photovoltaic performance with a power conversion efficiency of ∼ 6%. [6]


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