Dominant growth of higher manganese silicide film on Si substrate by introducing a Si oxide capping layer

Cao, Shuaiqi, Wang, Qingjie, Hu, Junhua, Fu, Zhenya, Bai, Kuifeng, Shao, Guosheng and Cao, Guoqin (2018) Dominant growth of higher manganese silicide film on Si substrate by introducing a Si oxide capping layer. Journal of Alloys and Compounds, 740. pp. 541-544. ISSN 0925-8388

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Abstract

A surfactant free growth method was proposed to get thick MnSi∼1.7 film by exposure of Si(111) substrates to MnCl2 vapor in quartz ampoules. Prior to the growth of silicide film, an amorphous nano SiOx capping layer was introduced on the Si substrate. The capping layer changes the elemental diffusion flux to the reaction interface and facilitates the growth of single phase MnSi∼1.7 film. Optical absorption spectrum demonstrates the existence of a direct band gap∼ 0.78 eV, which agrees well with the theoretical one obtained by density functional theory modeling.

Item Type: Article
Divisions: University of Bolton Research Centres > Institute for Renewable Energy and Environmental Technologies
Depositing User: Tracey Gill
Date Deposited: 31 May 2018 08:39
Last Modified: 31 May 2018 08:39
Identification Number: 10.1016/j.jallcom.2017.10.124
URI: http://ubir.bolton.ac.uk/id/eprint/1776

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