Investigation of a Conjugated Polyelectrolyte Interlayer for Inverted Polymer:Fullerene Solar Cells

Inverted bulk heterojunction solar cells are fabricated using a conjugated polyelectrolyte (PFN) as a cathode interlayer. Enhanced photovoltaic performance is achieved by adjusting the PFN thickness. Measurements of the optical transmittance, cathode work function (via UPS) and surface atomic compos...

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Bibliographic Details
Published in:	Advanced energy materials Vol. 3; no. 6; pp. 718 - 723
Main Authors:	Xia, Ruidong, Leem, Dong-Seok, Kirchartz, Thomas, Spencer, Steve, Murphy, Craig, He, Zhicai, Wu, Hongbin, Su, Shijian, Cao, Yong, Kim, Ji Seon, deMello, John C., Bradley, Donal D.C., Nelson, Jenny
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 01-06-2013 WILEY‐VCH Verlag Wiley Subscription Services, Inc
Subjects:	Cathodes conjugated polyelectrolyte Interlayers inverted structure Photovoltaic cells Polyelectrolytes polymer solar cells Reduction Solar cells Ultraviolet ultraviolet and X-ray photoelectron spectroscopy workfunction X-ray photoelectron spectroscopy
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Summary:	Inverted bulk heterojunction solar cells are fabricated using a conjugated polyelectrolyte (PFN) as a cathode interlayer. Enhanced photovoltaic performance is achieved by adjusting the PFN thickness. Measurements of the optical transmittance, cathode work function (via UPS) and surface atomic composition (via XPS) provide insights into this optimization. Drift‐diffusion simulations point to a reduction in recombination of holes at the cathode as the main cause for improving Voc.
Bibliography:	ArticleID:AENM201200967 ark:/67375/WNG-TTZJCZ21-7 istex:9847FFF0F0ED89BDF8902D21D92F36B4E9114EAE ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1614-6832 1614-6840
DOI:	10.1002/aenm.201200967