Luminescence of hafnium dioxide films produced from hafnium dipivaloylmethanate

Autor:	A. A. Rastorguev, V. I. Belyi
Rok vydání:	2007
Předmět:	Materials science Hydrogen Band gap Analytical chemistry General Physics and Astronomy chemistry.chemical_element Hafnium chemistry.chemical_compound chemistry Luminescence Stoichiometry Excitation Hafnium dioxide Monoclinic crystal system
Zdroj:	Russian Physics Journal. 50:374-378
ISSN:	1573-9228 1064-8887
DOI:	10.1007/s11182-007-0051-2
Popis:	A technique is developed for measuring luminescence spectra of hafnium dioxide using a hydrogen lamp as an excitation source. The luminescence spectra of the as-grown and annealed hafnium dioxide films prepared by chemical deposition from volatile hafnium dipivaloylmethanate on the Si(111) substrates are measured at room temperature. Intense luminescence at λ ≌ 280 nm is characteristic of nanocrystallites of monoclinic modification. The band gap width is found to be ≌ 5.76 eV. It is shown that the film composition significantly deviates from the stoichiometric one.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c571ebfe0e20cbae5e6638b99590bddc https://doi.org/10.1007/s11182-007-0051-2 Zobrazit plný text záznamu Plný text ve formátu PDF