Efficient chemical structure and device engineering for achieving difluorinated 2,2′-bithiophene-based small molecular organic solar cells with 9.0% efficiency

2018 ◽  
Vol 6 (26) ◽  
pp. 12493-12505 ◽  
Author(s):  
Min Li ◽  
Zhongbin Qiu ◽  
Guangjun Zhang ◽  
Yu Liu ◽  
Lin Xiong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Chemical Structure ◽  
Narrow Band ◽  
Single Layer ◽  
End Capping ◽  
Optimized Conditions ◽  
Very High

Three novel narrow band gap small molecules (SMs) with D(A–Ar)2 molecular frameworks, based on fluorinated 2,2′-bithiophene (FBT) as an electron-donating (D) central core coupled with different electron-acceptor (A) bridge units, and 2-octylthiophene (Ar) units as end-capping units, were designed and synthesized for application as donor materials in solution-processed SM-OSCs. Under optimized conditions, a high PCE of 9.00% with a very high Jsc of 16.14 mA cm−2 and a FF of 73.52% for FBT(TDPP-T)2/PC71BM is obtained in single layer OSCs, which is among the highest reported for D(A–Ar)2-type SM based solar cells with a PCE up to 9% so far.

Narrow band gap isoindigo-based small molecules for solution-processed organic solar cells with high open-circuit voltage

2016 ◽  
Vol 220 ◽  
pp. 448-454 ◽  
Author(s):  
Changyan Ji ◽  
Lunxiang Yin ◽  
Bao Xie ◽  
Xiaochen Wang ◽  
Xu Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Narrow Band ◽  
Open Circuit ◽  
Solution Processed

9-Fluorenone and 9,10-anthraquinone potential fused aromatic building blocks to synthesize electron acceptors for organic solar cells

2017 ◽  
Vol 41 (8) ◽  
pp. 2899-2909 ◽  
Author(s):  
Thu Trang Do ◽  
Kira Rundel ◽  
Qinying Gu ◽  
Eliot Gann ◽  
Sergei Manzhos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Building Blocks ◽  
Electron Acceptors

Two novel small molecules based on fluorenone or 9,10-anthraquinone and diketopyrrolopyrrole (DPP) were synthesized and utilised as electron acceptor materials in fullerene-free organic solar cells.

Cyclopentadithiophene organic core in small molecule organic solar cells: morphological control of carrier recombination

2017 ◽  
Vol 19 (5) ◽  
pp. 3640-3648 ◽  
Author(s):  
Rocío Domínguez ◽  
Núria F. Montcada ◽  
Pilar de la Cruz ◽  
Emilio Palomares ◽  
Fernando Langa
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Electron Donor ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Solution Processed ◽  
Morphological Control ◽  
Carrier Recombination

Two new planar and symmetrical A–D–A (electron acceptor–electron donor–electron acceptor) small molecules based on a commercial cyclopentadithiophene derivative have been synthesized for solution processed small molecule organic solar cells.

Bis(perylene diimide) with DACH bridge as non-fullerene electron acceptor for organic solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14027-14033 ◽  
Author(s):  
Guangpeng Gao ◽  
Xiaolong Zhang ◽  
Dong Meng ◽  
Andong Zhang ◽  
Yanxia Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Perylene Diimide

A set of non-fullerene small molecules based on bis(perylene diimide) with chiral DACH bridges were designed, synthesized, and characterized as electron acceptor materials in BHJ inverted organic solar cells.

Synthesis, characterization and photovoltaic properties of benzo[1,2-b:4,5-b′]dithiophene-bridged molecules

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63260-63267 ◽  
Author(s):  
Xinli Liu ◽  
Shusheng Li ◽  
Jinhua Li ◽  
Jian Wang ◽  
Zhan'ao Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Properties ◽  
End Capping

Four benzo[1,2-b:4,5-b′]dithiophene (BDT) centred small molecules with different acceptor and end-capping groups were synthesized as the donor materials for organic solar cells.

scholarly journals New cyclopentadithiophene (CDT) linked porphyrin donors with different end-capping acceptors for efficient small molecule organic solar cells

2017 ◽  
Vol 5 (19) ◽  
pp. 4742-4751 ◽  
Author(s):  
Susana Arrechea ◽  
Ana Aljarilla ◽  
Pilar de la Cruz ◽  
Manish Kumar Singh ◽  
Ganesh D. Sharma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
End Capping

Using cyclopentadithiophene as bridge in A–D–A porphyrin-based small molecules, and PC71BM as acceptor in BHJ solar cells PCE of 7.93%, is achieved after SVA.

Influence of the positions of thiophenes and side chains on diketopyrrolopyrrole based narrow band-gap small molecules for organic solar cells

2016 ◽  
Vol 133 ◽  
pp. 100-108 ◽  
Author(s):  
Yuan Zhao ◽  
Xue Zhou ◽  
Kailong Wu ◽  
Huan Wang ◽  
Shiwei Qu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Side Chains

Asymmetric and Halogenated Fused‐Ring Electron Acceptor for Efficient Organic Solar Cells

2021 ◽  
pp. 2102189
Author(s):  
Jinlong Cai ◽  
Xue Zhang ◽  
Chuanhang Guo ◽  
Yuan Zhuang ◽  
Liang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Fused Ring
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