Transport properties of d-electron-based transparent conducting oxide:: Anatase Ti1-xNbxO2
Transport properties of d-electron-based transparent conducting oxide:: Anatase Ti1-xNbxO2
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DOI：
10.1063/1.2721748
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发表时间：
2007-05-01
影响因子：
3.2
通讯作者：
Hasegawa, Tetsuya
中科院分区：
文献类型：
--
作者：
Furubayashi, Yutaka;Yamada, Naoomi;Hasegawa, Tetsuya
研究了d电子基透明导电氧化物Nb掺杂TiO_2的输运性质随Nb含量x的变化。根据光学电阻率谱，在低载流子浓度（n（e））范围内，静态有效质量与0.4m（0）相似，与传统透明导电氧化物（TCO）的静态有效质量大致相同，并且比金红石型TiO 2报道的静态有效质量小两个数量级。发现在室温下的霍尔迁移率在x=0.01附近最大（n（e）类似于10（21）cm（-3）），与其他TCO不同，其主要由光学声子散射主导。(c)2007年，美国物理学会。
The transport properties of a d-electron-based transparent conducting oxide, Nb-doped anatase Ti1-xNbxO2, were investigated as a function of the Nb content x. From optical resistivity spectra, the static effective mass was evaluated to be similar to 0.4m(0) in the low-carrier-concentration (n(e)) regime, which is approximately the same as those of conventional transparent conducting oxides (TCOs), and two orders of magnitude smaller than that reported for rutile TiO2. The Hall mobility at room temperature, which is maximized at around x=0.01 (n(e)similar to 10(21) cm(-3)), was found to be mainly dominated by optical phonon scattering unlike that of other TCOs. (c) 2007 American Institute of Physics.