Characterization of the native oxide on CdTe surfaces-Reference-Cited by-同舟云学术

Characterization of the native oxide on CdTe surfaces

Published:2019-06-01 Issue:2 Volume:37 Page:206-211
ISSN:2083-134X
Container-title:Materials Science-Poland
language:en
Short-container-title:

Author:

Sobola Dinara¹²,Kaspar Pavel¹,Nebojsa Alois²,Hemzal Dušan³,Grmela Lubomír¹²,Smith Steve⁴

Affiliation:

1. Brno University of Technology , Faculty of Electrical Engineering and Communication, Physics Department , Technická 8, 616 00 Brno , Czech Republic

2. Central European Institute of Technology BUT , Purkyňova 123, 612 00 Brno , Czech Republic

3. Department of Condensed Matter Physics, Faculty of Science , Masaryk University , Kotlarska 2, 611 37 Brno , Czech Republic

4. South Dakota School of Mines , EP220, Electrical Engineering and Physics , 501 East St. Joseph Street Rapid City , 57701 South Dakota, USA

Abstract

Abstract This study focuses on the description of oxidation of CdTe monocrystal surfaces after selective chemical etching. Measurements of surface morphology of the oxides occurring in short time are valuable for deeper understanding of the material degradation and fabrication of reliable devices with enhanced performance. The samples with (1 1 1) orientation were selectively etched and cleaned of oxide. Exposure of the oxide-free surfaces of CdTe to air at normal atmospheric conditions over 24 hours leads to an appearance of characteristic surface features. The oxidized surfaces were investigated by scanning electron microscopy, scanning probe microscopy, Raman spectroscopy and ellipsometry. The results indicate clear differences in the oxidation of Cd-terminated and Te-terminated surfaces.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.sciendo.com/pdf/10.2478/msp-2019-0030

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