MgO(100) template layer for CdO thin film growth

Strategies to enhance microstructural crystallinity and charge carrier mobility

Lian Wang, Yu Yang, Shu Jin, Tobin J Marks

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A simple strategy of using thin, highly (100)-oriented MgO films as template layers for CdO thin film growth by metal-organic chemical vapor deposition on amorphous glass substrates is presented. For comparison, CdO films are grown simultaneously on clean glass, on a 50 nm MgO(100) template layer on glass, and on single-crystal MgO(100). X-ray diffraction as well as four-probe conductivity and Hall-effect measurements reveal that the 50 nm MgO(100) template layer significantly improves the microstructural texture and charge carrier mobility of the overlying CdO thin films. Thus, highly textured CdO thin films with an x-ray diffraction rocking curve full width at half maximum of 2.1° and large carrier mobilities of 160 cm2 V s can be achieved on amorphous glass. Substrate effects, film microstructures, optical properties, and surface morphologies of the CdO films on the different substrates are discussed.

Original languageEnglish
Article number162115
JournalApplied Physics Letters
Volume88
Issue number16
DOIs
Publication statusPublished - Apr 17 2006

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carrier mobility
charge carriers
crystallinity
templates
glass
thin films
metalorganic chemical vapor deposition
Hall effect
x ray diffraction
textures
optical properties
conductivity
microstructure
probes
single crystals
curves
diffraction
x rays

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

MgO(100) template layer for CdO thin film growth : Strategies to enhance microstructural crystallinity and charge carrier mobility. / Wang, Lian; Yang, Yu; Jin, Shu; Marks, Tobin J.

In: Applied Physics Letters, Vol. 88, No. 16, 162115, 17.04.2006.

Research output: Contribution to journalArticle

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