Towards a full understanding of regioisomer effects of indene-C60 bisadduct acceptors in bulk heterojunction polymer solar cells

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Cao T, Chen N, Liu G, Wan Y, Perea JD, Xia Y, Wang Z, Song B, Li N, Li X, Zhou Y, Brabec C, Li Y
Zeitschrift: Journal of Materials Chemistry A
Jahr der Veröffentlichung: 2017
Band: 5
Heftnummer: 21
Seitenbereich: 10206-10219
ISSN: 2050-7488
Sprache: Englisch


Abstract


Indene-C60 bisadduct (IC60BA), which can offer a significantly higher open-circuit voltage (Voc) than monoadducts, has become the research focus as electron acceptor materials in polymer solar cells (PSCs) in recent years. However, despite its popularity, IC60BA have always been applied in PSCs as mixture of several regioisomers and the nature of this mixture has never been fully investigated and understood. Herein, for the first time, 12 major regioisomers of IC60BA were isolated and a full investigation was carried out with respect to their structure, abundance, solubility and their corresponding photovoltaic performance. The results show that the PSCs based on these regioisomeric structures present very diverse PCE and their photovoltaic performance was dramatically affected not only by the relative indene positions but also by the steric orientation of the two indene groups. Electrochemical studies further revealed that the effect of energetic disorder inside the IC60BA regioisomers on their photovoltaic performance is insignificant when applied in PSCs. However, the steric structures and solubility of the regioisomers were found to have significant impact on the morphology and bulk properties of the active layer of PSCs, which give rise to very different PCE of devices based on IC60BA regioisomers with different structures. © 2017 The Royal Society of Chemistry.



FAU-Autoren / FAU-Herausgeber

Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Li, Ning Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


Autor(en) der externen Einrichtung(en)
Soochow University, Suzhou / 苏州大学


Zitierweisen

APA:
Cao, T., Chen, N., Liu, G., Wan, Y., Perea, J.D., Xia, Y.,... Li, Y. (2017). Towards a full understanding of regioisomer effects of indene-C60 bisadduct acceptors in bulk heterojunction polymer solar cells. Journal of Materials Chemistry A, 5(21), 10206-10219. https://dx.doi.org/10.1039/c7ta01665d

MLA:
Cao, Tiantian, et al. "Towards a full understanding of regioisomer effects of indene-C60 bisadduct acceptors in bulk heterojunction polymer solar cells." Journal of Materials Chemistry A 5.21 (2017): 10206-10219.

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Zuletzt aktualisiert 2018-07-11 um 13:50