Optical properties of highly oriented nanostructured CuI (111) thin films

被引：0

作者：

Luhanga, P. V. C. ^{[1
]}

Muiva, C. ^{[2
]}

Coetzee, S. H. ^{[3
,4
]}

Maabong, K. ^{[1
]}

Tiedt, L. ^{[5
]}

Monowe, P. ^{[1
]}

机构：

[1] Univ Botswana, Dept Phys, Private Bag 0022, Gaborone, Botswana

[2] Botswana Int Univ Sci & Technol, Dept Phys, Private Bag 16, Palapye, Botswana

[3] BITRI, Private Bag 0082, Gaborone, Botswana

[4] AMSEN, Gaborone, Botswana

[5] North West Univ, Lab Electron Microscopy, Potchefstroom Campus,Private Bag X6001, ZA-2520 Potchefstroom, South Africa

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2016年 / 18卷 / 9-10期

关键词：

CuI; Nanostructures; Thin films; Evaporation; Optical properties; COPPER SUBSTRATE; TRANSPARENT; THICKNESS; HALIDES; BAND;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transparent nanostructured copper(I) iodide (CuI) thin films of varying thicknesses were deposited by thermal evaporation of pre-melt quenched CuI powders and their structural and optical properties are reported. X-ray diffraction characterization identifies y-CuI and suggests that the films are monocrystalline in nature showing high crystallographic orientation along CuI (111). SEM studies reveal spherical granules growing in size with increasing film thickness. Thinner films were characterised by high dislocation densities. Optical studies revealed a red shift in the absorption edge and decreased optical band gap energies with film thickness.

引用

页码：837 / 841

页数：5

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