Thermal Conductivity of GaAs and GaAs1−xPx Laser Semiconductors
- 1 February 1965
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 36 (2), 505-507
- https://doi.org/10.1063/1.1714018
Abstract
Measurements of thermal conductivity for the range 3° to 300°K are reported for both pure and heavily doped n‐ and p‐type GaAs single crystals, and n‐type heavily doped polycrystalline GaAs1−xPx crystals with six compositions between x=0 and x=0.5. The alloy ingots have much lower K values due to alloy scattering, with a composition of 35% phosphide content (near the limit of laser operation) having a K less than 1/20 that of pure GaAs at 77°K. Hence heat dissipation is a serious obstacle to continuous operation of alloy lasers.Keywords
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