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Application of Small Molecule Donor Materials Based on Phenothiazine Core Unit in Bulk Heterojunction Solar Cells
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2014 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 118, no 30, 16851-16855 p.Article in journal (Refereed) Published
Abstract [en]

A D-pi-A type small molecule PTZ1 and an A-pi-D-pi-A type small molecule PTZ2 with phenothiazine as the central building block and dicyanovinyl as the electron-withdrawing end-group have been designed and synthesized. Compared with D-pi-A type donor material PTZ1, the donor material PTZ2 with A-pi-D-pi-A configuration shows much wider response to solar light. The donor material PTZ1 possesses more positive highest occupied molecular orbital level, and higher V obtained for devices with PTZ1/PC71BM blend as the active layer. An improved efficiency of 3.25% was obtained for the PTZ2/PC71BM based solar cells.

Place, publisher, year, edition, pages
2014. Vol. 118, no 30, 16851-16855 p.
Keyword [en]
Heterojunctions, Insecticides, Molecules, Solar cells, Active Layer, Building blockes, Bulk heterojunction solar cells, Donor materials, Electronwithdrawing, Highest occupied molecular orbital, Small molecules, Solar light
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-149979DOI: 10.1021/jp500370zISI: 000339930900067Scopus ID: 2-s2.0-84905440413OAI: oai:DiVA.org:kth-149979DiVA: diva2:742432
Funder
Swedish Energy AgencyKnut and Alice Wallenberg Foundation
Note

QC 20140901

Available from: 2014-09-01 Created: 2014-08-29 Last updated: 2017-12-05Bibliographically approved

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Sun, Licheng

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