scholarly journals Ternary Blended Fullerene‐Free Polymer Solar Cells with 16.5% Efficiency Enabled with a Higher‐LUMO‐Level Acceptor to Improve Film Morphology

2019 ◽  
Vol 9 (33) ◽  
pp. 1901728 ◽  
Author(s):  
Kun Li ◽  
Yishi Wu ◽  
Yabing Tang ◽  
Ming‐Ao Pan ◽  
Wei Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Film Morphology ◽  
Lumo Level

Efficient polymer solar cells enabled by alkoxy-phenyl side-chain-modified main-chain-twisted small molecular acceptors

2020 ◽  
Vol 8 (42) ◽  
pp. 22335-22345
Author(s):  
Baofeng Zhao ◽  
Weiping Wang ◽  
Yuan Xie ◽  
Heng Zhao ◽  
Liuchang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Main Chain ◽  
Polymer Solar Cells ◽  
Side Chain ◽  
Film Morphology

Alkoxy-phenyl-modified twisted NFAs with optimized film morphology achieve enhanced performances in polymer solar cells.

scholarly journals Novel Terthiophene-Substituted Fullerene Derivatives as Easily Accessible Acceptor Molecules for Bulk-Heterojunction Polymer Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Filippo Nisic ◽  
Alessia Colombo ◽  
Claudia Dragonetti ◽  
Alessandra Cominetti ◽  
Andrea Pellegrino ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Radiation ◽  
Band Gap ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Fullerene Derivatives ◽  
Heterojunction Solar Cells ◽  
Good Solubility ◽  
Lumo Level ◽  
Adequate Design

Five fulleropyrrolidines and methanofullerenes, bearing one or two terthiophene moieties, have been prepared in a convenient way and well characterized. These novel fullerene derivatives are characterized by good solubility and by better harvesting of the solar radiation with respect to traditional PCBM. In addition, they have a relatively high LUMO level and a low band gap that can be easily tuned by an adequate design of the link between the fullerene and the terthiophene. Preliminary results show that they are potential acceptors for the creation of efficient bulk-heterojunction solar cells based on donor polymers containing thiophene units.

Influence of the –CN substitution position on the performance of dicyanodistyrylbenzene-based polymer solar cells

2020 ◽  
Vol 11 (9) ◽  
pp. 1653-1662 ◽  
Author(s):  
Baitian He ◽  
Qingwu Yin ◽  
Boming Xie ◽  
Jie Zhang ◽  
Ruihao Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Film Morphology ◽  
And Performance

We developed four novel copolymers based on DCB units with differently positioned –CN groups and investigated their effects on the film morphology and performance of non-fullerene polymer solar cells.

scholarly journals All-Polymer Solar Cells Based on Fully Conjugated Donor-Acceptor Block Copolymers with Poly(naphthalene bisimide) Acceptor Blocks: Device Performance and Thin Film Morphology

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Kazuhiro Nakabayashi ◽  
Hideharu Mori
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Polymer Solar Cells ◽  
Grazing Incidence ◽  
Open Circuit ◽  
Device Performance ◽  
Film Morphology ◽  
Force Microscopy ◽  
Donor And Acceptor ◽  
Donor Acceptor

All-polymer solar cells are fabricated by using poly(3-hexylthiophene) (P3HT) and fully conjugated donor-acceptor (D-A) block copolymer (P3HT-PNBI-P3HT) as donor and acceptor materials, respectively. Atomic force microscopy (AFM) and grazing incidence wide angle X-ray scattering (GIWAXS) analyses reveal that device performance strongly depends on the P3HT:P3HT-PNBI-P3HT thin film morphology. Indeed, theπ-πstacking nanomorphology rich in the edge-on orientation is formed in the P3HT:P3HT-PNBI-P3HT thin film by optimizing the fabrication conditions, for example, thermal annealing temperature and cast solvent. Consequently, the power conversion efficiency (PCE) of 1.60% is achieved with an open-circuit voltage (Voc) of 0.59 V, short-current (Jsc) of 4.43 mA/cm2, and fill factor (FF) of 0.61. These results suggest that P3HT-PNBI-P3HT has the huge potential for the usage as a nonfullerene acceptor material.

Manipulating Film Morphology of All‐Polymer Solar Cells by Incorporating Polymer Compatibilizer

Solar RRL ◽  
2020 ◽  
Vol 4 (7) ◽  
pp. 2000148
Author(s):  
Wenkai Zhong ◽  
Qin Hu ◽  
Lei Ying ◽  
Yufeng Jiang ◽  
Kang Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Film Morphology

Side chain engineering of polymer acceptors for all-polymer solar cells with enhanced efficiency

2020 ◽  
Vol 8 (12) ◽  
pp. 4012-4020 ◽  
Author(s):  
Huiliang Sun ◽  
Bin Liu ◽  
Zaiyu Wang ◽  
Shaohua Ling ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Chain ◽  
Polymer Solar Cells ◽  
Random Copolymers ◽  
Side Chain ◽  
Film Morphology ◽  
Chain Packing ◽  
Imide Oligomers

Side chain engineering of fused bithiophene imide oligomers yields a new series of random copolymers with tunable polymer chain packing and film morphology. When applied in all-polymer solar cells, an 8.32% efficiency is obtained.

The synergy of host–guest nonfullerene acceptors enables 16%-efficiency polymer solar cells with increased open-circuit voltage and fill-factor

2019 ◽  
Vol 6 (10) ◽  
pp. 2094-2102 ◽  
Author(s):  
Yuan Chang ◽  
Tsz-Ki Lau ◽  
Ming-Ao Pan ◽  
Xinhui Lu ◽  
He Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Open Circuit ◽  
Lumo Level

A Voc-increased approach with ITCT as the higher-LUMO-level acceptor guest supplies 16.1%-efficiency fullerene-free ternary solar cells with both Voc and FF simultaneously increased.

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