Structural and Optical Properties of Ti-Doped InTe Thin Films

doi:10.1021/acs.jpcc.7b10862

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	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
ISSN	1932-7447
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
DOI	10.1021/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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