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Transparent Conducting Oxides: Electronic Structure-Property Relationship from Photoelectron Spectroscopy with in-situ Sample Preparation

Klein, Andreas (2013):
Transparent Conducting Oxides: Electronic Structure-Property Relationship from Photoelectron Spectroscopy with in-situ Sample Preparation.
In: Journal of the American Ceramic Society, pp. 331-345, 96, ISSN 00027820, [Online-Edition: http://dx.doi.org/10.1111/jace.12143],
[Article]

Abstract

The various applications of transparent conducting oxides (TCO), e.g., as electrodes in flat panel displays and solar cells or as low-emissivity coatings have stimulated extensive research on their fabrication and properties. Recent experimental and theoretical studies of defect properties have considerably improved the understanding of the limitations of the electrical conductivity of both n- and p-type transparent conductors and of the structural and electronic surface properties of the most important TCO materials. Development of emerging and future applications in the area of transparent thin film electronics with oxide semiconductors as well as the improvement of existing applications require a detailed control of the Fermi level position in the bulk and at surfaces and interfaces of polycrystalline and amorphous TCO materials. This feature article describes how the important parameters for such control can be identified using photoelectron spectroscopy with in situ sample preparation. The parameters influencing doping, work functions, ionization potentials, and surface band bending as well as energy band alignment at interfaces are described and discussed providing a fundamental understanding of important material properties for tailoring TCOs in electronic devices.

Item Type: Article
Erschienen: 2013
Creators: Klein, Andreas
Title: Transparent Conducting Oxides: Electronic Structure-Property Relationship from Photoelectron Spectroscopy with in-situ Sample Preparation
Language: English
Abstract:

The various applications of transparent conducting oxides (TCO), e.g., as electrodes in flat panel displays and solar cells or as low-emissivity coatings have stimulated extensive research on their fabrication and properties. Recent experimental and theoretical studies of defect properties have considerably improved the understanding of the limitations of the electrical conductivity of both n- and p-type transparent conductors and of the structural and electronic surface properties of the most important TCO materials. Development of emerging and future applications in the area of transparent thin film electronics with oxide semiconductors as well as the improvement of existing applications require a detailed control of the Fermi level position in the bulk and at surfaces and interfaces of polycrystalline and amorphous TCO materials. This feature article describes how the important parameters for such control can be identified using photoelectron spectroscopy with in situ sample preparation. The parameters influencing doping, work functions, ionization potentials, and surface band bending as well as energy band alignment at interfaces are described and discussed providing a fundamental understanding of important material properties for tailoring TCOs in electronic devices.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 96
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Surface Science
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D3: Function and fatigue of oxide electrodes in organic light emitting diodes
11 Department of Materials and Earth Sciences > Material Science
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
11 Department of Materials and Earth Sciences
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 16 Aug 2013 13:18
Official URL: http://dx.doi.org/10.1111/jace.12143
Additional Information:

SFB 595 D3

Identification Number: doi:10.1111/jace.12143
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