Effects of end-capped acceptors subject to subtle structural changes on solution-processable small molecules for organic solar cells

2015 ◽  
Vol 17 (14) ◽  
pp. 8894-8900 ◽  
Author(s):  
Dan Deng ◽  
Yajie Zhang ◽  
Lingyun Zhu ◽  
Jianqi Zhang ◽  
Kun Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Structural Changes ◽  
Photovoltaic Properties ◽  
Solution Processable ◽  
The Relationship

Three subtle structural changed end-capped acceptors with increased electron withdrawing ability were synthesized and introduced into a planar conjugated backbone. The relationship between molecules bearing the three end-capped acceptors and their photovoltaic properties was studied.

scholarly journals Solution processable diketopyrrolopyrrole (DPP) cored small molecules with BODIPY end groups as novel donors for organic solar cells

2014 ◽  
Vol 10 ◽  
pp. 2683-2695 ◽  
Author(s):  
Diego Cortizo-Lacalle ◽  
Calvyn T Howells ◽  
Upendra K Pandey ◽  
Joseph Cameron ◽  
Neil J Findlay ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Photovoltaic Properties ◽  
Tddft Calculations ◽  
End Groups ◽  
Solution Processable ◽  
Dft And Tddft Calculations ◽  
Molar Extinction Coefficients

Two novel triads based on a diketopyrrolopyrrole (DPP) central core and two 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) units attached by thiophene rings have been synthesised having high molar extinction coefficients. These triads were characterised and used as donor materials in small molecule, solution processable organic solar cells. Both triads were blended with PC71BM as an acceptor in different ratios by wt % and their photovoltaic properties were studied. For both the triads a modest photovoltaic performance was observed, having an efficiency of 0.65%. Moreover, in order to understand the ground and excited state properties and vertical absorption profile of DPP and BODIPY units within the triads, theoretical DFT and TDDFT calculations were performed.

Synthesis and photovoltaic properties of A–D–A type non-fullerene acceptors containing isoindigo terminal units

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107566-107574 ◽  
Author(s):  
Xin Liu ◽  
Yuan Xie ◽  
Xinyi Cai ◽  
Yunchuan Li ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Photovoltaic Properties ◽  
Donor Acceptor ◽  
Solution Processable ◽  
Terminal Units

Four solution-processable acceptor–donor–acceptor structured organic molecules with isoindigo as terminal acceptor units and different aromatic rigid planar cores as donor units were designed and synthesized as the acceptor materials in organic solar cells (OSCs).

An effective heteroatom-substituted strategy on photovoltaic properties of D(A-Ar)2 small molecules for efficient organic solar cells

2019 ◽  
Vol 170 ◽  
pp. 107595 ◽  
Author(s):  
Min Li ◽  
Zuojia Li ◽  
Zhen Yang ◽  
Zuoji Liu ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Photovoltaic Properties

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.

Understanding effects of two different acceptors in one small molecule for solution processable organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 61703-61709
Author(s):  
Yifan Zhao ◽  
Liu Yuan ◽  
Jianqi Zhang ◽  
Lingyun Zhu ◽  
Kun Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Deep Understanding ◽  
Type A ◽  
Organic Photovoltaic ◽  
Solution Processable

By comparing two-acceptor type (A1–A2–D–A2–A1) with single-acceptor type organic photovoltaic small molecules, a deep understanding of two-acceptors was obtained, which could help potential strategies of molecular design.

Solution Processable Small Molecules for Application to Organic Solar Cells

2016 ◽  
Vol 16 (8) ◽  
pp. 8670-8673 ◽  
Author(s):  
Sora Oh ◽  
Jong-Cheol Lee ◽  
Taek Ahn ◽  
Sang Kyu Lee
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Solution Processable
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