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).

scholarly journals D-A-D structured organic molecules with diketopyrrolopyrrole acceptor unit for solution-processed organic solar cells

2014 ◽  
Vol 372 (2013) ◽  
pp. 20130009 ◽  
Author(s):  
Jing Zhang ◽  
Chang He ◽  
Zhi-Guo Zhang ◽  
Dan Deng ◽  
Maojie Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Bulk Heterojunction ◽  
Energy Levels ◽  
Orbital Energy ◽  
Broad Absorption ◽  
Photovoltaic Properties ◽  
Solution Processed ◽  
Highest Occupied Molecular Orbital

Four solution-processable D-A-D structured organic molecules with diketopyrrolopyrrole (DPP) as acceptor unit and triphenylamine (TPA) or (4-hexyl)thieno [3,2-b]thiophene (HTT) as donor unit, DPP8-TPA, DPP8-TPA-OR, DPP6-HTT and DPP8-HTT, were designed and synthesized for the application as donor materials in solution-processed organic solar cells (OSCs). The molecules show broad absorption and relatively lower highest occupied molecular orbital energy levels. Photovoltaic properties of the molecules were investigated by fabricating the bulk-heterojunction OSCs with the molecules as donor and PC 71 BM as acceptor. Power conversion efficiency of the OSC based on DPP8-HTT reached 1.5% under the illumination of AM1.5, 100 mW cm −2 .

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.

Improvement of optoelectronic and photovoltaic properties through the insertion of a naphthalenediimide unit in donor–acceptor oligothiophenes

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4411-4415 ◽  
Author(s):  
Sharad R. Bobe ◽  
Akhil Gupta ◽  
Anushri Rananaware ◽  
Ante Bilic ◽  
Sidhanath V. Bhosale ◽  
...  
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Photovoltaic Properties ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Donor Acceptor ◽  
Solution Processable

Herein, we report optoelectronic and photovoltaic properties of conjugated naphthalenediimide functionality in a given donor–acceptor small molecular oligothiophene, when used in solution-processable bulk heterojunction solar cells.

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.

Triphenylamine based donor-acceptor-donor type small molecules for organic solar cells

2021 ◽  
Vol 1198 ◽  
pp. 113176
Author(s):  
Sadaf Bibi ◽  
Rasheed Ahmad Khera ◽  
Afifa Farhat ◽  
Javed Iqbal
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Donor Type ◽  
Donor Acceptor
Sign in / Sign up

Export Citation Format

Share Document