Structural and Optical Properties of Ti-Doped InTe Thin Films
Yuan, YF; Liu, CM; Su, J; Cheng, L; Fang, J; Zhang, XT; Sun, Y; Wu, YQ; Zhang, H; Li, J
2018
发表期刊JOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
卷号122期号:11页码:6267-6272
文章类型期刊论文
摘要Thin films of Ti-doped indium telluride (InTe) chalcogenide were prepared by the magnetron co-sputtering method. The optical and structural properties were investigated by various tools after the thermal treatment. All annealed films were highly polycrystalline with (211) as the preferred orientation. Raman spectra results confirm that the structure of the InTe films can be adjusted by Ti dopants. The transmittance is high in the near-infrared region. The refractive index (n) and extinction coefficient (k) of the films were measured by a Spectroscopic Ellipsometer. The optical band gaps increase from 1.56 to 1.85 eV with the increasing concentration of Ti. The third-order nonlinear optical properties of the thin films were investigated by applying the open-aperture Z-scan method with femtosecond laser excitation at 800 nm wavelength. The results show reverse saturation absorptions which show the potential value of the films in optical limiting applications. The nonlinear absorption coefficient was calculated using a model developed by Sheik-Behae. The femtosecond pump probe technique was employed to measure the transient reflectivity of the samples. The results indicate that the lifetime of the carrier can be adjusted by the Ti dopant because of the carrier trapping effect.
关键词Chalcogenide Glasses Electrical-properties Nonlinearity Absorption Dependence
DOI10.1021/acs.jpcc.7b10862
收录类别SCI
语种英语
WOS记录号WOS:000428356700048
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29142
专题中科院上海应用物理研究所2011-2018年
作者单位1.Yuan, YF
2.Liu, CM
3.Su, J
4.Cheng, L
5.Fang, J
6.Zhang, XT
7.Sun, Y
8.Wu, YQ
9.Zhang, H
10.Li, J
推荐引用方式
GB/T 7714
Yuan, YF,Liu, CM,Su, J,et al. Structural and Optical Properties of Ti-Doped InTe Thin Films[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(11):6267-6272.
APA Yuan, YF.,Liu, CM.,Su, J.,Cheng, L.,Fang, J.,...&Li, J.(2018).Structural and Optical Properties of Ti-Doped InTe Thin Films.JOURNAL OF PHYSICAL CHEMISTRY C,122(11),6267-6272.
MLA Yuan, YF,et al."Structural and Optical Properties of Ti-Doped InTe Thin Films".JOURNAL OF PHYSICAL CHEMISTRY C 122.11(2018):6267-6272.
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