Preparation and optical constants of the nano-crystal and polymer composite Bi4Ti3O12/PMMA thin films

被引：21

作者：

Yang, HL ^{[1
]}

Quan, R

Zhang, GH

Chow, YT

Chan, HP

Chu, PL

机构：

[1] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[3] City Univ Hong Kong, Optoelect Res Ctr, Kowloon, Hong Kong, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2005年 / 37卷 / 04期

基金：

中国国家自然科学基金;

关键词：

optical constants; nano-crystal; transmitted spectrum;

D O I：

10.1016/j.optlastec.2004.04.004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Bismuth titanate, Bi4Ti3O12 (BTO), is a typical ferroelectric material with useful properties for optical memory, piezoelectric and electro-optic devices. Its nano-crystals were compounded by the chemical solution decomposition technique. Its structure and size were analyzed by X-ray diffraction and transmissive electron microscopy. The composite thin film of BTO nano-crystals and high transparency polymethylmethacrylate (PMMA) polymer was prepared by spin coating. The transmitted spectrum of BTO/ PMMA composite thin film in 300-1500 nm was measured. The film thickness d and the optical constants of the film, such as the refractive index n, the absorption coefficient alpha, and the extinction coefficient kappa were obtained using the data from the transmitted spectrum. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：259 / 264

页数：6

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[2]

FOUSCOVA A, 1968, J APPL PHYS, V39, P2268

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