Gaussian distribution of Schottky barrier heights on SnO2 nanowires

Autor: Luana S. Araujo, Edson R. Leite, Adenilson J. Chiquito, Olivia M. Berengue, Cleber A. Amorim
Rok vydání: 2011
Předmět:
Zdroj: MRS Proceedings. 1406
ISSN: 1946-4274
0272-9172
DOI: 10.1557/opl.2011.1536
Popis: In this work, we studied metal/SnO2 junctions using transport properties. Parameters such as barrier height, ideality factor and series resistance were estimated at different temperatures. Schottky barrier height showed a small deviation of the theoretical value mainly because the barrier was considered fixed as described by ideal thermionic emission-diffusion model. These deviations have been explained by assuming the presence of barrier height inhomogeneities. Such assumption can also explain the high ideality factor as well as the Schottky barrier height and ideality factor dependence on temperature.
Databáze: OpenAIRE