Optical absorption by Ag precipitates in AlGaAs

Autor:	David D. Nolte, J. C. P. Chang, David T. Crouse, Michael R. Melloch
Rok vydání:	1997
Předmět:	Condensed Matter::Materials Science Ion implantation Materials science Band gap Transmission electron microscopy Precipitation (chemistry) Surface plasmon Analytical chemistry Physics::Optics General Physics and Astronomy Resonance Absorption (electromagnetic radiation) Nanoclusters
Zdroj:	Journal of Applied Physics. 81:7981-7987
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.365401
Popis:	Optical absorption by silver nanoclusters in a dilute metal-semiconductor composite is calculated including the effects of size and shape on the surface plasmon absorption. Strong broadening of the Frohlich resonance peaks is caused by relatively minor shape variations. Optical transmission experiments and transmission electron microscopy experiments were performed on a Ag–Al0.3Ga0.7As composite formed by ion implantation followed by anneal. Silver precipitates are present in a clearly defined implant layer. A broad featureless optical absorption is observed that extends below the band gap, and which increases approximately linearly with Ag-ion dose.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c9b1062098ca86cb2f13c6afe6ef730d https://doi.org/10.1063/1.365401 Zobrazit plný text záznamu