Depending on growth and annealing conditions ZnO crystals can show a reddish coloration clearly deviating from the normal, colorless transparency. The additional broad near-edge absorption is observed when particles of few nanometer diameter are present in the crystals. Excitation of plasmons in Zn nanoparticles can explain this absorption.
Coloration of Wide-Bandgap Semiconductors Originating from Particle Plasmons / K., Irmscher; M., Albrecht; B., Heimbrodt; M., Naumann; T., Remmele; D., Schulz; Fornari, Roberto. - ELETTRONICO. - 1199:(2009), pp. 101-102. (Intervento presentato al convegno 29th International Conference on Physics of Semiconductors, ICPS 29 tenutosi a Rio de Janeiro nel 27 July 2008 - 1 August 2008).
Coloration of Wide-Bandgap Semiconductors Originating from Particle Plasmons
FORNARI, Roberto
2009-01-01
Abstract
Depending on growth and annealing conditions ZnO crystals can show a reddish coloration clearly deviating from the normal, colorless transparency. The additional broad near-edge absorption is observed when particles of few nanometer diameter are present in the crystals. Excitation of plasmons in Zn nanoparticles can explain this absorption.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
