Indium-cadmium-oxide films having exceptional electrical conductivity and optical transparency: Clues for optimizing transparent conductors
Open Access
- 19 June 2001
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences of the United States of America
- Vol. 98 (13), 7113-7116
- https://doi.org/10.1073/pnas.121188298
Abstract
Materials with high electrical conductivity and optical transparency are needed for future flat panel display, solar energy, and other opto-electronic technologies. InxCd1-xO films having a simple cubic microstructure have been grown on amorphous glass substrates by a straightforward chemical vapor deposition process. The x = 0.05 film conductivity of 17,000 S/cm, carrier mobility of 70 cm2/Vs, and visible region optical transparency window considerably exceed the corresponding parameters for commercial indium-tin oxide. Ab initio electronic structure calculations reveal small conduction electron effective masses, a dramatic shift of the CdO band gap with doping, and a conduction band hybridization gap caused by extensive Cd 5s + In 5s mixing.Keywords
This publication has 26 references indexed in Scilit:
- New n-Type Transparent Conducting OxidesMRS Bulletin, 2000
- Criteria for Choosing Transparent ConductorsMRS Bulletin, 2000
- Chemical and Thin-Film Strategies for New Transparent Conducting OxidesMRS Bulletin, 2000
- CsBi 4 Te 6 : A High-Performance Thermoelectric Material for Low-Temperature ApplicationsScience, 2000
- Development and Implementation of New Volatile Cd and Zn Precursors for the Growth of Transparent Conducting Oxide Thin Films Via MocvdMRS Proceedings, 2000
- Optical properties and electronic structures of semiconductors with screened-exchange LDAPhysical Review B, 1999
- Study on Electronic Structure and Optoelectronic Properties of Indium Oxide by First-Principles CalculationsJapanese Journal of Applied Physics, 1997
- Highly conducting transparent thin films based on zinc oxideJournal of Materials Research, 1996
- Structural properties of ferromagnetic bcc iron: A failure of the local-spin-density approximationPhysical Review B, 1984
- Thermoreflectance spectra of CdO: Band gaps and band-population effectsPhysical Review B, 1976