Symmetry and Coplanarity of Organic Molecules Affect their Packing and Photovoltaic Properties in Solution-Processed Solar Cells

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 .

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

RSC Advances ◽

10.1039/c5ra23321f ◽

2015 ◽

Vol 5 (130) ◽

pp. 107566-107574 ◽

Cited By ~ 18

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).

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The effect of acceptor end groups on the physical and photovoltaic properties of A–π–D–π–A type oligomers with same S, N-heteropentacene central electron donor unit for solution processed organic solar cells

Dyes and Pigments ◽

10.1016/j.dyepig.2016.02.029 ◽

2016 ◽

Vol 129 ◽

pp. 209-219 ◽

Cited By ~ 12

Author(s):

Hyejeoung Lee ◽

Hyeonjun Jo ◽

Dayoung Kim ◽

Subhayan Biswas ◽

Ganesh D. Sharma ◽

...

Keyword(s):

Solar Cells ◽

Electron Donor ◽

Organic Solar Cells ◽

Photovoltaic Properties ◽

Solution Processed ◽

End Groups

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Effects of bridging atom and π-bridge length on physical and photovoltaic properties of A–π-D–π-A oligomers for solution-processed organic solar cells

Dyes and Pigments ◽

10.1016/j.dyepig.2015.06.026 ◽

2015 ◽

Vol 122 ◽

pp. 213-223 ◽

Cited By ~ 8

Author(s):

Yuriy N. Luponosov ◽

Jie Min ◽

Artem V. Bakirov ◽

Petr V. Dmitryakov ◽

Sergei N. Chvalun ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Photovoltaic Properties ◽

Solution Processed ◽

Bridge Length

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Solution-processed Cu2ZnSnS4 absorbers prepared by appropriate inclusion and removal of thiourea for thin film solar cells

RSC Advances ◽

10.1039/c3ra45441j ◽

2014 ◽

Vol 4 (18) ◽

pp. 9118-9125 ◽

Cited By ~ 38

Author(s):

Si-Nae Park ◽

Shi-Joon Sung ◽

Dae-Ho Son ◽

Dae-Hwan Kim ◽

Mungunshagai Gansukh ◽

...

Keyword(s):

Thin Film ◽

Thin Films ◽

Solar Cells ◽

Thin Film Solar Cells ◽

Organic Chemicals ◽

Photovoltaic Properties ◽

Solution Processed ◽

Czts Thin Films

Effective adding/removal of organic chemicals to/from CZTS precursor thin films for preparing uniform CZTS thin films with optimal photovoltaic properties was achieved by pre-annealing of CZTS precursors containing thiourea.

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Branched versus linear: side-chain effect on fluorinated wide bandgap donors and their applications in organic solar cells

New Journal of Chemistry ◽

10.1039/c9nj04621f ◽

2020 ◽

Vol 44 (3) ◽

pp. 753-760

Author(s):

Tainan Duan ◽

Ru-Ze Liang ◽

Yingying Fu ◽

Yuying Chang ◽

Zhipeng Kan ◽

...

Keyword(s):

Solar Cells ◽

Band Gap ◽

Organic Solar Cells ◽

Organic Molecules ◽

Wide Band ◽

Wide Bandgap ◽

Side Chain ◽

Wide Band Gap ◽

Solution Processed ◽

Small Organic Molecules

We report a new series of wide band-gap small organic molecules as donor-materials featuring an indaceno[1,2-b:5,6-b′]dithiophene (IDT) core and fluorinated thiophene linkers for solution-processed organic solar cells.

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New Solution-Processed Surface Treatment to Improve the Photovoltaic Properties of Electrodeposited Cu(In,Ga)Se2 (CIGSe) Solar Cells

ACS Applied Materials & Interfaces ◽

10.1021/acsami.1c00270 ◽

2021 ◽

Author(s):

Qing Gao ◽

Yongheng Zhang ◽

Jianping Ao ◽

Jinlian Bi ◽

Liyong Yao ◽

...

Keyword(s):

Solar Cells ◽

Surface Treatment ◽

Photovoltaic Properties ◽

Solution Processed

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Synthesis and Photovoltaic Properties of Moderate Band Gap Diketopyrrolopyrrole Based Small Molecules for Solution Processed Organic Solar Cells

Molecular Crystals and Liquid Crystals ◽

10.1080/15421406.2014.933388 ◽

2014 ◽

Vol 598 (1) ◽

pp. 163-170

Author(s):

Sushil Bagde ◽

Pranabesh Dutta ◽

Hanok Park ◽

Soo-Hyoung Lee

Keyword(s):

Solar Cells ◽

Small Molecules ◽

Band Gap ◽

Organic Solar Cells ◽

Photovoltaic Properties ◽

Solution Processed

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High photocurrent in oligo-thienylenevinylene-based small molecule solar cells with 4.9% solar-to-electrical energy conversion

Journal of Materials Chemistry A ◽

10.1039/c5ta01632k ◽

2015 ◽

Vol 3 (21) ◽

pp. 11340-11348 ◽

Cited By ~ 13

Author(s):

Núria F. Montcada ◽

Rocío Domínguez ◽

Beatriz Pelado ◽

Pilar de la Cruz ◽

Emilio Palomares ◽

...

Keyword(s):

Solar Cells ◽

Energy Conversion ◽

Small Molecule ◽

Electron Donor ◽

Electron Acceptor ◽

Organic Solar Cells ◽

Organic Molecules ◽

Bulk Heterojunction ◽

Electrical Energy ◽

Solution Processed

A set of five novel oligo-thienylenevinylene organic molecules have been synthesized and characterized for use as electron donor moieties in bulk-heterojunction solution-processed organic solar cells combined with PC71BM as an electron acceptor.

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