AES Investigation of Chemical Treatment Effect on CdTe and CdZnTe Surfaces

Autor:	A. Iller, G. Karczewski, G. Kolmhofer, E. Łusakowska, H. Sitter
Rok vydání:	1998
Předmět:	Auger electron spectroscopy Cadmium Chemistry Inorganic chemistry chemistry.chemical_element General Chemistry Condensed Matter Physics Epitaxy Isotropic etching Cadmium telluride photovoltaics chemistry.chemical_compound Etching (microfabrication) General Materials Science Methanol Single crystal
Zdroj:	Crystal Research and Technology. 33:401-408
ISSN:	1521-4079 0232-1300
DOI:	10.1002/(sici)1521-4079(1998)33:3<401::aid-crat401>3.0.co;2-u
Popis:	{211} polar surfaces of a Cd 0.96 Zn 0.04 Te chemically treated single crystal were investigated by Auger electron spectroscopy depth profiling. It was found that the use of a discriminatory black-white etchant causes the formation of a thick layer with cadmium having been severely depleted at both (211) A and (211) B faces. The thickness of this layer is large by a factor of 2 for the matt black face then for the bright and reflecting face. AES investigation of chemical treatment influence on (100) CdTe epitaxial layer surface has been performed. It has been established that etching in Br/methanol solution removes S, Cl and O containing contaminants from the surface, but simultaneously forms a Cd-depleted layer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2220c61dd5caefc55a215b6c9b01d2d2 https://doi.org/10.1002/(sici)1521-4079(1998)33:3<401::aid-crat401>3.0.co Zobrazit plný text záznamu Plný text