Siloxane-Terminated Side Chain Engineering of Acceptor Polymers Leading to Over 7% Power Conversion Efficiencies in All-Polymer Solar Cells

Feng, S. Z. (author): South China University of Technology,South China University of Technology, Peoples R China

Liu, C. (author): South China University of Technology,South China University of Technology, Peoples R China

Xu, Xiaofeng, 1984 (author): Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Chalmers University of Technology, Sweden

Liu, X. C. (author): South China University of Technology,South China University of Technology, Peoples R China

Zhang, L. J. (author): South China University of Technology,South China University of Technology, Peoples R China

Nian, Y. W. (author): South China University of Technology,South China University of Technology, Peoples R China

Cao, Y. (author): South China University of Technology,South China University of Technology, Peoples R China

Chen, J. W. (author): South China University of Technology,South China University of Technology, Peoples R China

(creator_code:org_t)

2017-11-09
2017
English.
In: ACS Macro Letters. - : American Chemical Society (ACS). - 2161-1653. ; 6:11, s. 1310-1314

Related links:: https://research.cha...; show more...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Abstract Subject headings

To investigate the influence of functional pendent groups on acceptor polymers and photovoltaic properties of all-polymer solar cells (all-PSCs), two novel acceptor polymers containing siloxane-terminated side chains are synthesized and characterized. Increasing the content of siloxane-terminated side chains can reduce pi-pi stacking distance and improve crystalline behavior, yet lead to poorer solubility of the acceptor polymers. By modulating the proper loadings of siloxane-terminated side chains on the acceptor polymers, the PBDB-T:PNDI-Si25 all-PSC attains a maximal power conversion efficiency (PCE) of 7.4% with an outstanding fill factor of 0.68. The results provide, new insights for developing high-performance all-PSCs through functional group engineering on the acceptor polymers, to achieve good solubility, polymer miscibility, and blend morphology.

TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)

By the author/editor: Feng, S. Z.; Liu, C.; Xu, Xiaofeng, 19 ...; Liu, X. C.; Zhang, L. J.; Nian, Y. W.; show more...; Cao, Y.; Chen, J. W.; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Polymer Technolo ...

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