High-performance organic solar cells based on polymer donor/small molecule donor/nonfullerene acceptor ternary blends

2019 ◽  
Vol 7 (5) ◽  
pp. 2268-2274 ◽  
Author(s):  
Shuixing Dai ◽  
Sreelakshmi Chandrabose ◽  
Jingming Xin ◽  
Tengfei Li ◽  
Kai Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Ternary Blends ◽  
Binary Blend ◽  
Nonfullerene Acceptor

Polymer donor/small molecule donor/nonfullerene acceptor ternary organic solar cells afford efficiency of 13.1%, higher than that of the polymer donor/nonfullerene acceptor binary blend (12.1%).

Fullerene/Non-fullerene Alloy for High-Performance All-Small-Molecule Organic Solar Cells

2021 ◽  
Vol 13 (5) ◽  
pp. 6461-6469
Author(s):  
María Privado ◽  
Fernando G. Guijarro ◽  
Pilar de la Cruz ◽  
Rahul Singhal ◽  
Fernando Langa ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance

Fused Perylenediimide Dimer as Nonfullerene Acceptor for High-Performance Organic Solar Cells

2021 ◽  
pp. 109269
Author(s):  
Xinyue Cui ◽  
Muhammad Bilal Ahmed Qureshi ◽  
Hao Lu ◽  
Hang Wang ◽  
Yahui Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Nonfullerene Acceptor

High-performance organic solar cells based on a small molecule with thieno[3,2-b]thiophene as π-bridge

2018 ◽  
Vol 53 ◽  
pp. 273-279 ◽  
Author(s):  
Chennan Ye ◽  
Yan Wang ◽  
Zhaozhao Bi ◽  
Xia Guo ◽  
Qunping Fan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance

scholarly journals Donor Derivative Incorporation: An Effective Strategy toward High Performance All‐Small‐Molecule Ternary Organic Solar Cells

2019 ◽  
Vol 6 (21) ◽  
pp. 1901613 ◽  
Author(s):  
Hua Tang ◽  
Tongle Xu ◽  
Cenqi Yan ◽  
Jie Gao ◽  
Hang Yin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Effective Strategy

scholarly journals With PBDB-T as the Donor, the PCE of Non-Fullerene Organic Solar Cells Based on Small Molecule INTIC Increased by 52.4%

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1324 ◽  
Author(s):  
Weifang Zhang ◽  
Zicha Li ◽  
Suling Zhao ◽  
Zheng Xu ◽  
Bo Qiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Production Costs ◽  
Higher Carrier Mobility ◽  
Carrier Transportation

At present, most high-performance non-fullerene materials are centered on fused rings. With the increase in the number of fused rings, production costs and production difficulties increase. Compared with other non-fullerenes, small molecule INTIC has the advantages of easy synthesis and strong and wide infrared absorption. According to our previous report, the maximum power conversion efficiency (PCE) of an organic solar cell using PTB7-Th:INTIC as the active layer was 7.27%. In this work, other polymers, PTB7, PBDB-T and PBDB-T-2F, as the donor materials, with INTIC as the acceptor, are selected to fabricate cells with the same structure to optimize their photovoltaic performance. The experimental results show that the optimal PCE of PBDB-T:INTIC based organic solar cells is 11.08%, which, thanks to the open voltage (VOC) increases from 0.80 V to 0.84 V, the short circuit current (JSC) increases from 15.32 mA/cm2 to 19.42 mA/cm2 and the fill factor (FF) increases from 60.08% to 67.89%, then a 52.4% improvement in PCE is the result, compared with the devices based on PTB7-Th:INTIC. This is because the PBDB-T:INTIC system has better carrier dissociation and extraction, carrier transportation and higher carrier mobility.

scholarly journals All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Active Layers ◽  
Donor Acceptor

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.

scholarly journals High-Performance Ternary Organic Solar Cells Enabled by Combining Fullerene and Nonfullerene Electron Acceptors

2019 ◽  
Vol 01 (01) ◽  
pp. 030-037 ◽  
Author(s):  
Jianyun Zhang ◽  
Wenrui Liu ◽  
Shengjie Xu ◽  
Xiaozhang Zhu
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Wide Bandgap ◽  
The Third ◽  
Bimolecular Recombination ◽  
Conversion Efficiencies ◽  
Wide Bandgap Polymer ◽  
Nonfullerene Acceptor

Recently, by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance through extending the light absorption, manipulating the recombination behavior of the carriers, and improving the morphology of the active layer. In this work, we synthesized a new electron-acceptor ZITI-4F matching it with the wide-bandgap polymer donor PBDB-T The PBDB-T:ZITI-4F-based OSC showed a high PCE of 12.33%. After introducing 40% of PC71BM as the third component, the ternary device achieved an improved PCE of 13.40% with simultaneously improved photovoltaic parameters. The higher performance of the ternary device can be attributed to the improved and more balanced charge mobility, reduced bimolecular recombination, and more favorable morphology. These results indicate that the cooperation of a fullerene-based acceptor and a nonfullerene acceptor to fabricate ternary OSCs is an effective approach to optimizing morphology and therefore to increase the performance of OSCs.

Asymmetrical side-chain engineering of small-molecule acceptors enable high-performance nonfullerene organic solar cells

Nano Energy ◽  
2020 ◽  
Vol 67 ◽  
pp. 104209 ◽  
Author(s):  
Bin Kan ◽  
Xuebin Chen ◽  
Ke Gao ◽  
Ming Zhang ◽  
Francis Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Side Chain
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