Ternary Polymer Solar Cells Using Two Polymers P1 and P3 with Similar Chemical Structures and Nonfullerene Acceptor Attained Power Conversion Efficiency Over 15.5% with Low Energy Loss of 0.55 eV

2020 ◽  
pp. 2000926
Author(s):  
Ganesh D. Sharma ◽  
Hemraj Dahiya ◽  
Mukhamed L. Keshtov ◽  
Sergei A. Kuklin
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Power Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Low Energy ◽  
Chemical Structures ◽  
Similar Chemical ◽  
Ternary Polymer ◽  
Nonfullerene Acceptor

As-cast ternary polymer solar cells based on a nonfullerene acceptor and its fluorinated counterpart showing improved efficiency and good thickness tolerance

2019 ◽  
Vol 7 (16) ◽  
pp. 9798-9806 ◽  
Author(s):  
Feilong Pan ◽  
Lianjie Zhang ◽  
Haiying Jiang ◽  
Dong Yuan ◽  
Yaowen Nian ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Ternary Blend ◽  
Blend Films ◽  
Thickness Tolerance ◽  
Ternary Polymer ◽  
Nonfullerene Acceptor

PBDB-T-SF : IDIC : ID4F ternary blend films show 11.52% power conversion efficiency, higher than 9.39% and 10.35% for the corresponding binary devices.

scholarly journals Control over π-π stacking of heteroheptacene-based nonfullerene acceptors for 16% efficiency polymer solar cells

2020 ◽  
Vol 7 (12) ◽  
pp. 1886-1895 ◽  
Author(s):  
Yunlong Ma ◽  
Dongdong Cai ◽  
Shuo Wan ◽  
Pan Yin ◽  
Pengsong Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Power Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Lateral Side ◽  
Side Chains ◽  
Π Stacking ◽  
Donor Acceptor ◽  
Nonfullerene Acceptor

Abstract Nonfullerene acceptors are being investigated for use in polymer solar cells (PSCs), with their advantages of extending the absorption range, reducing the energy loss and therefore enhancing the power conversion efficiency (PCE). However, to further boost the PCE, mobilities of these nonfullerene acceptors should be improved. For nonfullerene acceptors, the π–π stacking distance between cofacially stacked molecules significantly affects their mobility. Here, we demonstrate a strategy to increase the mobility of heteroheptacene-based nonfullerene acceptors by reducing their π–π stacking distances via control over the bulkiness of lateral side chains. Incorporation of 2-butyloctyl substituents into the nonfullerene acceptor (M36) leads to an increased mobility with a reduced π–π stacking distance of 3.45 Å. Consequently, M36 affords an enhanced PCE of 16%, which is the highest among all acceptor-donor-acceptor-type nonfullerene acceptors to date. This strategy of control over the bulkiness of side chains on nonfullerene acceptors should aid the development of more efficient PSCs.

Increase the nucleation and growth barrier of non-fullerene acceptor to achieve bicontinuous pathways in semitransparent ternary polymer solar cells

2021 ◽  
Author(s):  
Yadi Liu ◽  
Ye Yan ◽  
Qiang Zhang ◽  
Jidong Zhang ◽  
Xinhong Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Active Layer ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Domain Size ◽  
Interfacial Area ◽  
Nucleation And Growth ◽  
Ternary Polymer ◽  
20 Nm

The active layer morphology with domain size of 10-20 nm and large interfacial area plays a significant role in governing the device power conversion efficiency (PCE) of semitransparent polymer solar...

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