Organic photodetector arrays with indium tin oxide electrodes patterned using directly transferred metal masks

Xin Xu; Momchil Mihnev; Andre Taylor; Stephen R. Forrest

doi:10.1063/1.3072612

Organic photodetector arrays with indium tin oxide electrodes patterned using directly transferred metal masks

Xin Xu, Momchil Mihnev, Andre Taylor, Stephen R. Forrest

Chemical and Biomolecular Engineering

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

Abstract

We demonstrate the patterning of indium tin oxide (ITO) electrodes with submicron resolution onto both planar and hemispherical plastic surfaces using a process based on the direct transfer of a metal film etch mask via cold welding. Using this process, we fabricate an organic (copper phthalocyanine/ C₆₀) photodetector focal plane array on a hemispherical surface in an architecture that mimics the size and form of the human eye. The low absorption of the ITO anodes results in an increase in external quantum efficiency by up to 65% in the visible as compared with that of a previously demonstrated photodetector array with semitransparent Au anodes. The maximum photodetector detectivity is 1.25× 10¹¹ cm Hz^1/2 W^-1.

Original language	English (US)
Article number	043313
Journal	Applied Physics Letters
Volume	94
Issue number	4
DOIs	https://doi.org/10.1063/1.3072612
State	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3072612

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title = "Organic photodetector arrays with indium tin oxide electrodes patterned using directly transferred metal masks",

abstract = "We demonstrate the patterning of indium tin oxide (ITO) electrodes with submicron resolution onto both planar and hemispherical plastic surfaces using a process based on the direct transfer of a metal film etch mask via cold welding. Using this process, we fabricate an organic (copper phthalocyanine/ C60) photodetector focal plane array on a hemispherical surface in an architecture that mimics the size and form of the human eye. The low absorption of the ITO anodes results in an increase in external quantum efficiency by up to 65% in the visible as compared with that of a previously demonstrated photodetector array with semitransparent Au anodes. The maximum photodetector detectivity is 1.25× 1011 cm Hz1/2 W-1.",

author = "Xin Xu and Momchil Mihnev and Andre Taylor and Forrest, {Stephen R.}",

note = "Funding Information: The authors thank the Defense Advanced Research Projects Agency, the Air Force Office of Scientific Research, the National Science Foundation, and Universal Display Corporation for financial support.",

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language = "English (US)",

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journal = "Applied Physics Letters",

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T1 - Organic photodetector arrays with indium tin oxide electrodes patterned using directly transferred metal masks

AU - Xu, Xin

AU - Mihnev, Momchil

AU - Taylor, Andre

AU - Forrest, Stephen R.

N1 - Funding Information: The authors thank the Defense Advanced Research Projects Agency, the Air Force Office of Scientific Research, the National Science Foundation, and Universal Display Corporation for financial support.

PY - 2009

Y1 - 2009

N2 - We demonstrate the patterning of indium tin oxide (ITO) electrodes with submicron resolution onto both planar and hemispherical plastic surfaces using a process based on the direct transfer of a metal film etch mask via cold welding. Using this process, we fabricate an organic (copper phthalocyanine/ C60) photodetector focal plane array on a hemispherical surface in an architecture that mimics the size and form of the human eye. The low absorption of the ITO anodes results in an increase in external quantum efficiency by up to 65% in the visible as compared with that of a previously demonstrated photodetector array with semitransparent Au anodes. The maximum photodetector detectivity is 1.25× 1011 cm Hz1/2 W-1.

AB - We demonstrate the patterning of indium tin oxide (ITO) electrodes with submicron resolution onto both planar and hemispherical plastic surfaces using a process based on the direct transfer of a metal film etch mask via cold welding. Using this process, we fabricate an organic (copper phthalocyanine/ C60) photodetector focal plane array on a hemispherical surface in an architecture that mimics the size and form of the human eye. The low absorption of the ITO anodes results in an increase in external quantum efficiency by up to 65% in the visible as compared with that of a previously demonstrated photodetector array with semitransparent Au anodes. The maximum photodetector detectivity is 1.25× 1011 cm Hz1/2 W-1.

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Organic photodetector arrays with indium tin oxide electrodes patterned using directly transferred metal masks

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