Control of interface microscopic processes in organic bilayer structures and their effect on photovoltaic device performance

Feilong Liu, Brian K. Crone, P. Paul Ruden, Darryl L. Smith

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We explore theoretically the effect of incorporating a thin tunnel barrier between the electron and hole transport layers of organic heterojunction photovoltaic devices. Macroscopic device characteristics (such as short-circuit current, open-circuit voltage, and power efficiency) are related to microscopic processes (such as exciton diffusion, dissociation, and recombination). We show that a tunnel barrier that alters the rates of different transfer processes at the interface between the electron and hole transport layers can significantly affect the efficiency of organic photovoltaic devices.

Original languageEnglish (US)
Article number044516
JournalJournal of Applied Physics
Volume113
Issue number4
DOIs
StatePublished - Jan 28 2013

Bibliographical note

Funding Information:
This work was supported in part by the Los Alamos National Laboratory LDRD program XW11 and the National Science Foundation (NSF) MRSEC Program under Award No. DMR-0819885. Access to the facilities of the Minnesota Supercomputing Institute is gratefully acknowledged.

Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.

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