Structural And Optical Properties Of Single Crystalline Columbite Tin Oxide Film
APPLIED PHYSICS LETTERS(2011)
Abstract
Tin oxide (SnO2) films were deposited on Y-stabilized ZrO2 (YSZ) (120) substrates at 500-750 degrees C by metalorganic chemical vapor deposition. The film deposited at 700 degrees C exhibited the best crystallinity, especially with a single crystalline columbite structure (C-SnO2). The structural and optical properties of this film were investigated in detail. A schematic diagram was proposed to clarify the growth mechanism, in which an epitaxial relationship of C-SnO2(120)parallel to YSZ(120) with C-SnO2[001]parallel to YSZ[001] was illustrated. The C-SnO2 film showed excellent transparency and the optical band gap was about 3.74 eV. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3603936]
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Key words
energy gap,thin film,crystal structure
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