Organic photovoltaic cells with high open circuit voltages based on pentacene derivatives

Leonidas C. Palilis; Paul A. Lane; Gary P. Kushto; Balaji Purushothaman; John E. Anthony; Zakya H. Kafafi

doi:10.1016/j.orgel.2008.05.015

Organic photovoltaic cells with high open circuit voltages based on pentacene derivatives

Leonidas C. Palilis, Paul A. Lane, Gary P. Kushto, Balaji Purushothaman, John E. Anthony, Zakya H. Kafafi

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

45 Scopus citations

Abstract

Heterojunction organic photovoltaic devices were fabricated using C₆₀ as the electron acceptor and several pentacene derivatives with triisopropylsilylethynyl functional groups as the electron donor. The open circuit voltage (V_oc) of functionalized pentacene-based cells is significantly higher (0.57-0.90 V) than for cells based on unsubstituted pentacene (0.24 V), due to the higher oxidation potentials of these pentacene derivatives. The performance of pentacene derivative cells is limited by lower current densities than the reference pentacene/C₆₀ cell. The absorption spectra of films and solutions of pentacene derivatives closely resemble one another, leading us to conclude that these films are amorphous in nature. Weak intermolecular coupling in the derivative films results in lower charge mobility and shorter exciton diffusion lengths relative to pentacene.

Original language	English
Pages (from-to)	747-752
Number of pages	6
Journal	Organic Electronics
Volume	9
Issue number	5
DOIs	https://doi.org/10.1016/j.orgel.2008.05.015
State	Published - Oct 2008

Bibliographical note

Funding Information:
The authors would like to thank Dr. Mason Wolak for measuring the absorption spectra of TIPS and Olga Lobanova and Dennis Lichtenberger for providing preliminary gas phase photoemission data. This work was supported by the Office of Naval Research.

Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.

Funding

The authors would like to thank Dr. Mason Wolak for measuring the absorption spectra of TIPS and Olga Lobanova and Dennis Lichtenberger for providing preliminary gas phase photoemission data. This work was supported by the Office of Naval Research.

Funders	Funder number
Office of Naval Research

Keywords

Fullerene
Morphology
Organic photovoltaics
Pentacene

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.orgel.2008.05.015

Cite this

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title = "Organic photovoltaic cells with high open circuit voltages based on pentacene derivatives",

abstract = "Heterojunction organic photovoltaic devices were fabricated using C60 as the electron acceptor and several pentacene derivatives with triisopropylsilylethynyl functional groups as the electron donor. The open circuit voltage (Voc) of functionalized pentacene-based cells is significantly higher (0.57-0.90 V) than for cells based on unsubstituted pentacene (0.24 V), due to the higher oxidation potentials of these pentacene derivatives. The performance of pentacene derivative cells is limited by lower current densities than the reference pentacene/C60 cell. The absorption spectra of films and solutions of pentacene derivatives closely resemble one another, leading us to conclude that these films are amorphous in nature. Weak intermolecular coupling in the derivative films results in lower charge mobility and shorter exciton diffusion lengths relative to pentacene.",

keywords = "Fullerene, Morphology, Organic photovoltaics, Pentacene",

author = "Palilis, {Leonidas C.} and Lane, {Paul A.} and Kushto, {Gary P.} and Balaji Purushothaman and Anthony, {John E.} and Kafafi, {Zakya H.}",

note = "Funding Information: The authors would like to thank Dr. Mason Wolak for measuring the absorption spectra of TIPS and Olga Lobanova and Dennis Lichtenberger for providing preliminary gas phase photoemission data. This work was supported by the Office of Naval Research. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

year = "2008",

month = oct,

doi = "10.1016/j.orgel.2008.05.015",

language = "English",

volume = "9",

pages = "747--752",

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AU - Palilis, Leonidas C.

AU - Lane, Paul A.

AU - Kushto, Gary P.

AU - Purushothaman, Balaji

AU - Anthony, John E.

AU - Kafafi, Zakya H.

N1 - Funding Information: The authors would like to thank Dr. Mason Wolak for measuring the absorption spectra of TIPS and Olga Lobanova and Dennis Lichtenberger for providing preliminary gas phase photoemission data. This work was supported by the Office of Naval Research. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2008/10

Y1 - 2008/10

N2 - Heterojunction organic photovoltaic devices were fabricated using C60 as the electron acceptor and several pentacene derivatives with triisopropylsilylethynyl functional groups as the electron donor. The open circuit voltage (Voc) of functionalized pentacene-based cells is significantly higher (0.57-0.90 V) than for cells based on unsubstituted pentacene (0.24 V), due to the higher oxidation potentials of these pentacene derivatives. The performance of pentacene derivative cells is limited by lower current densities than the reference pentacene/C60 cell. The absorption spectra of films and solutions of pentacene derivatives closely resemble one another, leading us to conclude that these films are amorphous in nature. Weak intermolecular coupling in the derivative films results in lower charge mobility and shorter exciton diffusion lengths relative to pentacene.

AB - Heterojunction organic photovoltaic devices were fabricated using C60 as the electron acceptor and several pentacene derivatives with triisopropylsilylethynyl functional groups as the electron donor. The open circuit voltage (Voc) of functionalized pentacene-based cells is significantly higher (0.57-0.90 V) than for cells based on unsubstituted pentacene (0.24 V), due to the higher oxidation potentials of these pentacene derivatives. The performance of pentacene derivative cells is limited by lower current densities than the reference pentacene/C60 cell. The absorption spectra of films and solutions of pentacene derivatives closely resemble one another, leading us to conclude that these films are amorphous in nature. Weak intermolecular coupling in the derivative films results in lower charge mobility and shorter exciton diffusion lengths relative to pentacene.

KW - Fullerene

KW - Morphology

KW - Organic photovoltaics

KW - Pentacene

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SN - 1566-1199

VL - 9

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JO - Organic Electronics

JF - Organic Electronics

IS - 5

ER -

Organic photovoltaic cells with high open circuit voltages based on pentacene derivatives

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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