Dimeric Phenazinothiadiazole Acceptors in Bulk Heterojunction Solar Cells

Abstract: Two covalently linked triisopropylsilyl-ethynylated phenazinothiadiazoles were prepared through condensation of a spirocyclic and a bicyclic tetraketone with a 5,6-diaminobenzothiadiazole. The spirobisindene- and the ethanoanthracene-based linkers render the electron acceptors amorphous in thin films. The optoelectronic properties of the non-conjugated dimers are indistinguishable from that of the crystalline monomer. Bulk heterojunction solar cells were prepared with power conversion efficiencies peaking at 1.6%. The choice of linker neither influenced optical and electrochemical properties nor device performance.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Dimeric Phenazinothiadiazole Acceptors in Bulk Heterojunction Solar Cells ; volume:03 ; number:02 ; year:2021 ; pages:168-173
Organic materials ; 03, Heft 02 (2021), 168-173

Contributor
Ahrens, Lukas
Hofstetter, Yvonne J.
Celik, Baris
Butscher, Julian F.
Rominger, Frank
Freudenberg, Jan
Vaynzof, Yana
Bunz, Uwe H. F.

DOI
10.1055/s-0041-1726459
URN
urn:nbn:de:101:1-2022031111165183743972
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:21 AM CEST

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