A generic green solvent concept boosting the power conversion efficiency of all-polymer solar cells to 11%

2019 ◽  
Vol 12 (1) ◽  
pp. 157-163 ◽  
Author(s):  
Zhenye Li ◽  
Lei Ying ◽  
Peng Zhu ◽  
Wenkai Zhong ◽  
Ning Li ◽  
...  

Advances in organic photovoltaic technologies have always been closely associated with a deeper understanding of bulk-heterojunction (BHJ) microstructure morphology, which is generally governed by the ink-formulation based on a single solvent or solvent mixtures.

2016 ◽  
Vol 3 (2) ◽  
pp. 222-239 ◽  
Author(s):  
Fengling Zhang ◽  
Olle Inganäs ◽  
Yinhua Zhou ◽  
Koen Vandewal

Abstract Global efforts and synergetic interdisciplinary collaborations on solution-processed bulk-heterojunction polymer solar cells (PSCs or OPVs) made power conversion efficiencies over 10% possible. The rapid progress of the field is credited to the synthesis of a large number of novel polymers with specially tunable optoelectronic properties, a better control over the nano-morphology of photoactive blend layers, the introduction of various effective interfacial layers, new device architectures and a deeper understanding of device physics. We will review the pioneering materials for polymer–fullerene solar cells and trace the progress of concepts driving their development. We discuss the evolution of morphology control, interfacial layers and device structures fully exploring the potential of photoactive materials. In order to guide a further increase in power conversion efficiency of OPV, the current understanding of the process of free charge carrier generation and the origin of the photovoltage is summarized followed by a perspective on how to overcome the limitations for industrializing PSCs.


2010 ◽  
Vol 22 (20) ◽  
pp. E135-E138 ◽  
Author(s):  
Yongye Liang ◽  
Zheng Xu ◽  
Jiangbin Xia ◽  
Szu-Ting Tsai ◽  
Yue Wu ◽  
...  

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1423 ◽  
Author(s):  
Xu ◽  
Saianand ◽  
Roy ◽  
Qiao ◽  
Reza ◽  
...  

A compatible low-bandgap donor polymer (poly[N-90-heptadecanyl-2,7carbazole-alt-3,6-bis(thiophen-5-yl)-2,5-dioctyl-2,5-dihydropyrrolo [3,4] pyrrole-1,4-dione], PCBTDPP) was judicially introduced into the archetypal poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) photoactive system to fabricate highly efficient ternary based bulk heterojunction polymer solar cells (PSCs). The PCBTDPP ternary-based PSC with optimal loading (0.2 wt.%) displayed outstanding performance with a champion power conversion efficiency (PCE) of 5.28% as compared to the PCE (4.67%) for P3HT:PC61BM-based PSC (reference). The improved PCE for PCBTDPP ternary-based PSC can be mainly attributed to the incorporation of PCBTDPP into P3HT:PC61BM that beneficially improved the optical, morphological, electronic, and photovoltaic (PV) performance. This work instills a rational strategy for identifying components (donor/acceptor (D/A) molecules) with complementary beneficial properties toward fabricating efficient ternary PSCs.


2020 ◽  
Vol 8 (12) ◽  
pp. 6067-6075 ◽  
Author(s):  
Kezia Sasitharan ◽  
David G. Bossanyi ◽  
Naoum Vaenas ◽  
Andrew J. Parnell ◽  
Jenny Clark ◽  
...  

Metal–organic framework nanosheets (MONs) are incorporated into the active layer of bulk heterojunction polymer–fullerene solar cells for the first time, resulting in an almost doubling of power conversion efficiency.


2017 ◽  
Vol 5 (2) ◽  
pp. 712-719 ◽  
Author(s):  
Woosung Lee ◽  
Jae Woong Jung

A novel wide band gap polymer (PIDTT-TT) has been synthesized to use in efficient polymer solar cells with power conversion efficiencies up to 7.10%.


2017 ◽  
Vol 10 (5) ◽  
pp. 1243-1251 ◽  
Author(s):  
Baobing Fan ◽  
Lei Ying ◽  
Zhenfeng Wang ◽  
Baitian He ◽  
Xiao-Fang Jiang ◽  
...  

By processing PTzBI:N2200 blends with green solvent 2-methyltetrahydrofuran, all-PSCs with a power conversion efficiency over 9% can be achieved.


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