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2012 | OriginalPaper | Buchkapitel

Current Challenges in Organic Photovoltaic Solar Energy Conversion

verfasst von : Cody W. Schlenker, Mark E. Thompson

Erschienen in: Unimolecular and Supramolecular Electronics I

Verlag: Springer Berlin Heidelberg

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Abstract

Over the last 10 years, significant interest in utilizing conjugated organic molecules for solid-state solar to electric conversion has produced rapid improvement in device efficiencies. Organic photovoltaic (OPV) devices are attractive for their compatibility with low-cost processing techniques and thin-film applicability to flexible and conformal applications. However, many of the processes that lead to power losses in these systems still remain poorly understood, posing a significant challenge for the future efficiency improvements required to make these devices an attractive solar technology. While semiconductor band models have been employed to describe OPV operation, a more appropriate molecular picture of the pertinent processes is beginning to emerge. This chapter presents mechanisms of OPV device operation, based on the bound molecular nature of the involved transient species. With the intention to underscore the importance of considering both thermodynamic and kinetic factors, recent progress in elucidating molecular characteristics that dictate photovoltage losses in heterojunction organic photovoltaics is also discussed.

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Vorheriges Kapitel Fullerenes, Carbon Nanotubes, and Graphene for Molecular Electronics

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Titel: Current Challenges in Organic Photovoltaic Solar Energy Conversion
verfasst von: Cody W. Schlenker
Mark E. Thompson
Verlag: Springer Berlin Heidelberg
Buch: Unimolecular and Supramolecular Electronics I
Print ISBN: 978-3-642-27283-7

Electronic ISBN: 978-3-642-27284-4

Copyright-Jahr: 2012
DOI: https://doi.org/10.1007/128_2011_219

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