An arylene-vinylene based donor-acceptor-donor small molecule for the donor compound in high-voltage organic solar cells
2016 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 155, 348-355 p.Article in journal (Refereed) Published
A donor-acceptor-donor (D-A-D) molecule has been designed and synthesized for use as the electron donating material in solution-processed small-molecule organic solar cells (OSCs). The D-A-D molecule comprises a central electron-accepting (2Z,2'Z)-2,2'-(2,5-bis(octyloxy)-1,4-phenylene)bis(3-(thiophen-2-yl)acry lonitrile) (ZOPTAN) core, which is chemically connected to two peripheral and electron-donating triphenylamine (TPA) units. The ZOPTAN-TPA molecule features a low HOMO level of -5.2 eV and an optical energy gap of 2.1 eV. Champion OSCs based on a solution-processed and non-annealed active material blend of [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) and ZOPTAN-TPA in a mass ratio of 2:1 exhibits a power conversion efficiency of 1.9% and a high open-circuit voltage of 1.0 V.
Place, publisher, year, edition, pages
2016. Vol. 155, 348-355 p.
Organic solar cell, Small-molecule donor, Fullerene acceptor, Solution processing, High open-circuit ltage, Thermal stability
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:umu:diva-126290DOI: 10.1016/j.solmat.2016.06.018ISI: 000381529100040OAI: oai:DiVA.org:umu-126290DiVA: diva2:1045122