Thermal conductivity of single-crystalline AlN

• DOI: 10.7567/apex.11.071001
• Publication Date: 2018-06-11T11:14:00Z
• Authors: Robert Rounds; Biplab Sarkar; Andrew Klump; Carsten Hartmann; Toru Nagashima; Ronny Kirste; Alexander Franke; Matthias Bickermann; Yoshinao Kumagai; Zlatko Sitar; Ramón Collazo
• Keywords: Atmospheric temperature range; Vapor phase

The thermal conductivity of AlN single crystals grown by physical vapor transport (PVT) and hydride phase epitaxy (HVPE) was measured in the range 30 to 325 K 3ω method. room-temperature ranged from 268 374 W m−1 K−1. Higher correlated with higher transparency at 265 nm lower total impurity levels.