Optical and structural properties of NiMgO thin films formed by sol-gel spin coating

被引：29

作者：

Boutwell, R. C. ^{[1
]}

Wei, M. ^{[1
]}

Scheurer, A. ^{[1
]}

Mares, J. W. ^{[1
]}

Schoenfeld, W. V. ^{[1
]}

机构：

[1] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA

来源：

THIN SOLID FILMS | 2012年 / 520卷 / 13期

关键词：

NiMgO; Sol-gel; Thin films; Spin coating; Ultraviolet solar blind; X-ray diffraction; Optical properties; MAGNESIUM-OXIDE; NICKEL-OXIDE; MGO; LUMINESCENCE;

D O I：

10.1016/j.tsf.2012.02.065

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni1-xMgxO thin films across the full compositional range were formed by a low-cost sol-gel spin coating method. Optical transmission of the resultant films in the ultraviolet-visible spectral region increased to as high as 90% upon sintering, and X-ray diffraction verified an increase in crystallinity for sintering temperatures up to 1000 degrees C, with root mean square roughness below 1 nm when sintered between 600 and 800 degrees C. The lattice parameter of the rock salt Ni1-xMgxO films showed a linear shift with increased magnesium concentration, consistent with a Vegard's Law relationship between the two binaries. Optical energy gaps from 3.6 to >6.5 eV were realized by adjusting the composition of the Ni1-xMgxO films, demonstrating the suitability of the ternary for optical devices in the UV-C spectral region. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：4302 / 4304

页数：3

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