Thermal conductivity of single-crystalline AlN. (11th June 2018)

• Record Type: Journal Article
• Authors: Rounds, Robert; Sarkar, Biplab; Klump, Andrew; Hartmann, Carsten; Nagashima, Toru; Kirste, Ronny; Franke, Alexander; Bickermann, Matthias; Kumagai, Yoshinao; Sitar, Zlatko; Collazo, Ramón
• Is Part Of: Applied physics express. Volume 11:Number 7(2018)
• Publication Date: 2018-06-11
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.11.071001
• Languages: English
• ISSNs: 1882-0778

Abstract

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