Conjugated Polymeric Zwitterions as Efficient Interlayers in Organic Solar Cells

Conjugated polymeric zwitterions, when utilized as interlayer materials in bulk heterojunction organic solar cells, lead to significantly enhanced power conversion efficiencies. The electrostatic model of self‐aligning dipolar side groups in the vicinity of the metal surface rationalizes the effects...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2013-12, Vol.25 (47), p.6868-6873
Main Authors: Liu, Feng, Page, Zachariah A., Duzhko, Volodimyr V., Russell, Thomas P., Emrick, Todd
Format: Article
Language:English
Subjects:
Electric Power Supplies
Electrodes
electrostatic self-alignment of dipoles
Electrostatics
interfacial dipole
Organic solar cells
Polymers - chemistry
Solar Energy
Thiadiazoles - chemistry
Thiophenes - chemistry
ultraviolet photoelectron spectroscopy
zwitterionic polymers
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Summary:Conjugated polymeric zwitterions, when utilized as interlayer materials in bulk heterojunction organic solar cells, lead to significantly enhanced power conversion efficiencies. The electrostatic model of self‐aligning dipolar side groups in the vicinity of the metal surface rationalizes the effects of reduced cathode work function, a key factor behind the observed enhanced efficiency.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201302477