Effect of target-substrate distance on the growth and properties of rf-sputtered indium tin oxide films
- 1 February 1989
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 65 (3), 1270-1280
- https://doi.org/10.1063/1.343022
Abstract
Indium tin oxide films have been deposited by rf sputtering an oxide target (90% In2O3+10% SnO2). Transparent conducting films have been obtained on room‐temperature substrates without any post‐deposition annealing. The effects of target‐substrate separation on the growth characteristics and film properties have been studied. The virtual‐source formation of the sputtered neutrals in the gap between the target and substrate has been observed. The effect of sputtering parameters on the position of the virtual source has been studied. It has been observed that the films deposited onto substrates kept below and above the virtual source have different properties. The films on substrates kept above the virtual source have (222) preferred orientations, with a direct optical band gap of 3.7 eV, an electron effective mass of 0.51 m, and a figure of merit ∼14×10−3 Ω−1. The films on substrates below the virtual source have preferred orientations along (440) and (400), with a band gap of 3.5 eV, an effective mass of 0.2 m, and a higher figure of merit ∼40×10−3 Ω−1.Keywords
This publication has 44 references indexed in Scilit:
- Properties of Sn-doped In2O3 by reactive magnetron sputtering and subsequent annealingJournal of Vacuum Science & Technology A, 1987
- Target profile change during magnetron sputteringVacuum, 1986
- Properties of Indium Tin Oxide Films Prepared Using Reactive RF Magnetron SputteringMRS Proceedings, 1986
- Preparation and physical properties of transparent conducting oxide filmsPhysica Status Solidi (a), 1982
- Fabrication and characterization of indium tin oxide thin films for electroluminescent applicationsThin Solid Films, 1981
- Production of transparent electrically conducting films by ion platingThin Solid Films, 1981
- Deposition of In2O3SnO2 layers on glass substrates using a spraying methodThin Solid Films, 1981
- Properties of ZnxCd1−xS films prepared by solution spray techniquePhysica Status Solidi (a), 1978
- Transparent conductive Sn‐doped indium oxide coatings deposited by reactive sputtering with a post cathodeJournal of Vacuum Science and Technology, 1976
- Properties of Sn‐Doped In2 O 3 Films Prepared by RF SputteringJournal of the Electrochemical Society, 1975