Raman Scattering in Nanocomposites Based on Synthetic Opal and Nanocrystalline Bi2TeO5

被引：4

作者：

Moiseyenko, V. N. ^{[1
]}

Brynza, N. P. ^{[1
]}

Abu Sal, B. ^{[2
]}

Holze, R. ^{[3
]}

Gorelik, V. S. ^{[4
,5
]}

Sverbil', P. P. ^{[5
]}

机构：

[1] Oles Honchar Natl Univ, Pr Gagarina 72, UA-49010 Dnipro, Ukraine

[2] Tafila Tech Univ, Fac Sci, Dept Appl Phys, POB 40, Al Eis 66151, Tafila, Jordan

[3] Tech Univ Chemnitz, Inst Chem, Nationen Str 62,HO 943-23-1, D-09111 Chemnitz, Germany

[4] Bauman Moscow State Tech Univ, Vtoraya Baumanskaya Ul 5-1, Moscow 105005, Russia

[5] Russian Acad Sci, Lebedev Phys Inst, Leninskii Pr 53, Moscow 119991, Russia

来源：

INORGANIC MATERIALS | 2018年 / 54卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

nanocomposite; bismuth tellurite; structure; Raman scattering; opal; sphere; photonic crystal; BISMUTH TELLURITE; PHASE; CRYSTALS; GROWTH; OXIDE;

D O I：

10.1134/S0020168518120117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a systematic Raman scattering study of novel nanostructured materials based on synthetic opal and Bi2TeO5 nanocrystals, which offer high photorefractive sensitivity. Bismuth tellurite was introduced into opal pores in a molten state. The crystal structure of the material in the opal pores was determined by Raman spectroscopy. Comparison of the measured Raman spectra of the opal-Bi2TeO5 nanocomposite and those of polycrystalline powders and single crystals made it possible to reveal a number of new bands and analyze their origin. The observed variation in the intensity of Raman bands from point to point on the sample surface can be interpreted as due to structural light focusing and excitation field localization at surface and volume defects of the photonic crystal structure of the material.

引用

页码：1250 / 1255

页数：6

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