Microstructural control of thin film thermal conductivity

Lori J. Shaw-Klein; Stephen D. Jacobs; Stephen J. Burns; John C. Lambropoulos

doi:10.1117/12.60105

29 July 1992 Microstructural control of thin film thermal conductivity

Lori J. Shaw-Klein, Stephen D. Jacobs, Stephen J. Burns, John C. Lambropoulos

Proceedings Volume 1624, Laser-Induced Damage in Optical Materials: 1991; (1992) https://doi.org/10.1117/12.60105
Event: Laser-Induced Damage in Optical Materials: 1991, 1991, Boulder, CO, United States

Abstract

Previous studies have investigated the possible effects of thin film thermal conductivity on laser damage thresholds and the phenomenon of anomalously low thermal conductivity values for materials in thin film form. Here we discuss the primary microstructural mechanisms for the high thermal resistance found in thin films. By studying a number of thin film systems, we found that many factors contribute to the reduction in conductivity, and that primary mechanisms for thermal resistance depend on film material and processing conditions. Rare earth-transition metal films were studied to illustrate the effect of columnar microstructure, ZrO₂ to show the effects of varying crystal structure, YBa₂Cu₃O_7-(delta ) to show the effects of crystal structure anisotropy and hillock growth, and AIN to show the effects of impurities, dimensional effects, and nanocrystalline microstructure.

Citation Download Citation

Lori J. Shaw-Klein, Stephen D. Jacobs, Stephen J. Burns, and John C. Lambropoulos "Microstructural control of thin film thermal conductivity", Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, (29 July 1992); https://doi.org/10.1117/12.60105

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