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

doi:10.1063/1.4789622

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

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

13 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 language	English (US)
Article number	044516
Journal	Journal of Applied Physics
Volume	113
Issue number	4
DOIs	https://doi.org/10.1063/1.4789622
State	Published - 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.

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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.",

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AU - Paul Ruden, P.

AU - Smith, Darryl L.

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N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

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