Thermal Conductivity of Ge and Ge–Si Core–Shell Nanowires in the Phonon Confinement Regime

Autor: Renkun Chen, Ji-Hun Kim, Jaeyun Moon, Zack C. Y. Chen, Jie Xiang, Edward Dechaumphai, Matthew C. Wingert
Rok vydání: 2011
Předmět:
Zdroj: Nano Letters. 11:5507-5513
ISSN: 1530-6992
1530-6984
DOI: 10.1021/nl203356h
Popis: Heterostructure core-shell semiconductor nanowires (NWs) have attracted tremendous interest recently due to their remarkable properties and potential applications as building blocks for nanodevices. Among their unique traits, thermal properties would play a significant role in thermal management of future heterostructure NW-based nanoelectronics, nanophotonics, and energy conversion devices, yet have been explored much less than others. Similar to their electronic counterparts, phonon spectrum and thermal transport properties could be modified by confinement effects and the acoustic mismatch at the core-shell interface in small diameter NWs (
Databáze: OpenAIRE