High Transparency and Electrical Conductivity of SnO2:Nb Thin Films Formed through (001)-Oriented SnO:Nb on Glass Substrate

被引:17
作者
Suzuki, Ai Yoshie [1 ]
Nose, Kenji [1 ]
Ueno, Ai [1 ]
Kamiko, Masao [1 ]
Mitsuda, Yoshitaka [1 ]
机构
[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
关键词
ELECTRONIC-STRUCTURE; OXIDATION; SB;
D O I
10.1143/APEX.5.011103
中图分类号
O59 [应用物理学];
学科分类号
摘要
Nb-doped (101)-oriented SnO2 (SnO2:Nb) thin films were fabricated through postdeposition thermal annealing of (001)-oriented Nb-doped SnO films grown on glass substrates using pulsed laser deposition. Nb doping resulted in an anisotropic lattice deformation explained by Nb in Sn site. Resistivity, electron concentration, and mobility values of 3.7 x 10(-3) Omega cm, 6.5 x 10(19) cm(-3), and 26 cm V-1 s(-1), respectively, were achieved in the films at room temperature for a dopant concentration of 1 at.%. The optical band gap increased from 3.9 to 4.1 eV with Nb doping >= 1 at. %. (C) 2012 The Japan Society of Applied Physics
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页数:3
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