Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 20, 2020
Previous Article Next Article

Non-fullerene small molecule acceptors with three-dimensional thiophene/selenophene-annulated perylene diimides for efficient organic solar cells

Author affiliations

Abstract

New three-dimensional non-fullerene small molecule acceptors were synthesized with the structure of a spiro core, 4,4′-spirobi[cyclopenta[2,1-b;3,4-b′]dithiophene] (SCPDT) linked with S/Se fused perylene diimides (PDIs). The three-dimensional structure suppresses the aggregation of PDIs and the formation of excessively large crystalline domains. The well-conjugated structure and electron-rich property of the spiro core give rise to high electron mobility, making for more balanced carrier transport. The introduction of S/Se aromatic rings leads to appropriate energy levels and more twisted molecular configurations. Organic solar cells based on the PBDB-T-S:SCPDT-PDI4-S bulk heterojunction exhibit a high power conversion efficiency of 6.95% along with a high Voc of 1.00 V, a Jsc of 11.72 mA cm−2 and a fill factor of 59.27%.

Graphical abstract: Non-fullerene small molecule acceptors with three-dimensional thiophene/selenophene-annulated perylene diimides for efficient organic solar cells

Back to tab navigation

Supplementary files

Article information


Submitted
18 Jan 2020
Accepted
30 Mar 2020
First published
31 Mar 2020

J. Mater. Chem. C, 2020,8, 6749-6755
Article type
Paper

Non-fullerene small molecule acceptors with three-dimensional thiophene/selenophene-annulated perylene diimides for efficient organic solar cells

J. Pan, L. Wang, W. Chen, S. Sang, H. Sun, B. Wu, X. Hang, Z. Sun and W. Huang, J. Mater. Chem. C, 2020, 8, 6749
DOI: 10.1039/D0TC00341G

Social activity

Search articles by author

Spotlight

Advertisements