Journal
APPLIED PHYSICS LETTERS
Volume 79, Issue 14, Pages 2187-2189Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1403663
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Bright-field transmission electron microscopy (TEM) and high-resolution TEM images and an electron diffraction pattern showed that the SnO2 layers grown on heavily doped n-InP(100) substrates were nanoscale thin films. X-ray photoelectron spectroscopy showed that the positions of the peaks corresponding to the Sn 3d(5/2), the Sn 3d(3/2), and the O 1s levels for the SnO2 thin film were slightly shifted toward the lower energy side in comparison with those for bulk SnO2. The refractive indices obtained by spectroscopic ellipsometry were above 2.2 around the SnO2 energy gap of the SnO2 thin films. The maximum intensity of the optical transmittance for the SnO2 nanoscale thin film with 3939 Angstrom thickness was above 90%. (C) 2001 American Institute of Physics.
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