Journal
JOURNAL OF APPLIED PHYSICS
Volume 111, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3695996
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Funding
- Lawrence Berkeley National Laboratory
- Office of Basic Energy Sciences under U.S. Department of Energy [DE-AC02-05CH11231]
- Office of Science, Office of Basic Energy Sciences
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Analysis of the transmittance and reflectance of transparent conducting oxide thin films and nanocrystal films can be accurately modeled using the Drude free electron theory to extract electrical transport properties if enough care is taken. However, several fits starting from different initial guesses are needed before confidence in the extracted Drude parameters can be obtained. Film thickness, optical carrier concentration, and optical carrier mobility can be reliably derived when using either a fully empirical or semiempirical model for the ionized impurity scattering. The results are in good agreement with those based on more arduous spectroscopic ellipsometry measurements. Furthermore, fitting the reflectance along with the transmittance reduces the uncertainty, but does not significantly affect the values of the extracted parameters. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3695996]
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