Thermal conductivity of bulk ZnO after different thermal treatments

Conference Paper

Thermal conductivities (K) of melt-grown bulk ZnO samples thermally treated under different conditions were measured using scanning thermal microscopy. Samples annealed in air at 1050°C for 3 h and treated with N-plasma at 750°C for 1 min. exhibited κ = 1.35 ± 0.08 W/cm-K and κ = 1.47 ± 0.08 W/cm-K, respectively. These are the highest values reported for ZnO. Atomic force microscopy (AFM) and conductive-AFM measurements revealed that surface carrier concentration as well as surface morphology affected the thermal conductivity.

Full Text

Duke Authors

Cited Authors

  • Özgür, U; Gu, X; Chevtchenko, S; Spradlin, J; Cho, SJ; Morkoç, H; Pollak, FH; Everitt, HO; Nemeth, B; Nause, JE

Published Date

  • April 1, 2006

Published In

Volume / Issue

  • 35 / 4

Start / End Page

  • 550 - 555

International Standard Serial Number (ISSN)

  • 0361-5235

Digital Object Identifier (DOI)

  • 10.1007/s11664-006-0098-9

Citation Source

  • Scopus