Photoluminescence Study of ZnO Nanosheets with embedded Cu Nanocrystals

Autor:	Aaron I. Diaz Cano, Brahim El Filali
Rok vydání:	2013
Předmět:	Materials science Photoluminescence Analytical chemistry chemistry.chemical_element Thermal treatment Copper Amorphous solid symbols.namesake chemistry Nanocrystal Etching (microfabrication) symbols Raman spectroscopy Diode
Zdroj:	MRS Proceedings. 1617:101-106
ISSN:	1946-4274 0272-9172
DOI:	10.1557/opl.2013.1171
Popis:	In this work a simple method to produce the ZnO nanosheets (NSs) with inclusions of Cu nanocrystals by means of electrochemical etching without the necessity of any surfactant has been presented. The Raman spectroscopy demonstrates that the amorphous samples of ZnO-Cu present appreciable changes in its vibrational behavior after the thermal treatment at 400°C in ambient atmosphere. The study of Photoluminescence (PL) shows monotonous increasing the bands centered in 3.07, 2.41, 2.03 and 1.57 eV versus etching time in freshly prepared samples. The intensity variation of the PL bands, the changes in vibrational behavior, as well as the impact of the copper content and preparation conditions allow identifying emission inside the visible spectral range related to the surface defects that is interesting for the future possible application this ZnO system in room temperature “white” light-emitting diodes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::379019d57e7649bc321c5795611a7025 https://doi.org/10.1557/opl.2013.1171 Zobrazit plný text záznamu Full text from SpringerLink