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Type: 
Journal
Description: 
Ge1-xSbxTey thin films, grown by metalorganic and hot-wire liquid injection chemical vapor deposition in different crystalline phases, are investigated to determine resistivity, carrier density, and carrier mobility in the 4.2–300 K temperature range. It is found that all these chalcogenides exhibit p-type conduction, high carrier density (>2 · 1020 cm−3), and no carrier freeze-out, regardless of composition. Low-temperature mobility data show that both chemical composition and growth technique affect the defect density and, in turn, the carrier scattering mechanisms. In this regard, charge carrier mobility is analyzed according to semi-empirical scattering models and an interpretation is provided.
Publisher: 
AIP
Publication date: 
3 Sep 2012
Authors: 

Roberto Fallica, Flavio Volpe, Massimo Longo, Claudia Wiemer, Olivier Salicio, Adulfas Abrutis

Biblio References: 
Volume: 101 Issue: 10 Pages: 102105
Origin: 
Applied Physics Letters