Correlation of structure and photovoltaic performance of benzo[1,2-b:4,5-b′]dithiophene copolymers alternating with different acceptors

2015 ◽  
Vol 39 (3) ◽  
pp. 2248-2255 ◽  
Author(s):  
Jiangsheng Yu ◽  
Baofeng Zhao ◽  
Xuemei Nie ◽  
Baojin Zhou ◽  
Yang Li ◽  
...  

The PBDTT–TTz/PC61BM (1 : 2) devices with PFN as the cathode interfacial layer delivered a power conversion efficiency of 2.60% for polymer solar cells.

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Hanyu Wang ◽  
Xiao Wang ◽  
Pu Fan ◽  
Xin Yang ◽  
Junsheng Yu

The effect of molecular doping with TIPS-pentacene on the photovoltaic performance of polymer solar cells (PSCs) with a structure of ITO/ZnO/poly(3-hexylthiophene-2,5-diyl) (P3HT) : [6,6]-phenyl C71-butyric acid methyl ester (PC71BM) : TIPS-pentacene/MoOx/Ag was systematically investigated by adjusting TIPS-pentacene doping ratios ranged from 0.3 to 1.2 wt%. The device with 0.6 wt% TIPS-pentacene exhibited the enhanced short-circuit current and fill factor by 1.23 mA/cm2and 7.8%, respectively, resulting in a maximum power conversion efficiency of 4.13%, which is one-third higher than that of the undoped one. The photovoltaic performance improvement was mainly due to the balanced charge carrier mobility, enhanced crystallinity, and matched cascade energy level alignment in TIPS-pentacene doped active layer, resulting in the efficient charge separation, transport, and collection.


2016 ◽  
Vol 18 (11) ◽  
pp. 7978-7986 ◽  
Author(s):  
Jiangsheng Yu ◽  
Guanqun Ding ◽  
Jiefeng Hai ◽  
Enwei Zhu ◽  
Xinxing Yin ◽  
...  

The power conversion efficiency of polymer solar cells was enhanced by selenium substitution in the sulfur position of a benzothiadiazole unit.


2017 ◽  
Vol 8 (14) ◽  
pp. 2227-2234 ◽  
Author(s):  
Tao Wang ◽  
Lihui Jiang ◽  
Jun Yuan ◽  
Liuliu Feng ◽  
Zhi-Guo Zhang ◽  
...  

Using a fluoropyrido[3,4-b]pyrazine based 2D-conjugated polymer as an electron donor in polymer solar cells, a power conversion efficiency of 6.2% is obtained, which is the highest PCE among the PP-based polymers reported to date.


2017 ◽  
Vol 10 (10) ◽  
pp. 2212-2221 ◽  
Author(s):  
Zhaojun Li ◽  
Xiaofeng Xu ◽  
Wei Zhang ◽  
Xiangyi Meng ◽  
Zewdneh Genene ◽  
...  

High-performance ternary all-polymer solar cells with outstanding efficiency of 9.0% are realized by incorporating two donor and one acceptor polymers with complementary absorption and proper energy level alignment.


Author(s):  
Ritesh Kant Gupta ◽  
Rabindranath Garai ◽  
Maimur Hossain ◽  
Mohammad Adil Afroz ◽  
Dibashmoni Kalita ◽  
...  

Achieving high power conversion efficiency (PCE) polymer solar cells (PSCs) has been very challenging and the ultimate goal for their commercialization. Precise investigation of the active layer morphology and newer...


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