Title :
Effects of gamma irradiation on optical properties of CdSe/ZnS colloidal quantum dots
Author :
Withers, Nathan J. ; Sankar, Krishnaprasad ; Akins, Brian A. ; Memon, Tosifa A. ; Gu, Tingyi ; Gu, Jiangjiang ; Smolyakov, Gennady A. ; Osinski, Marek
Author_Institution :
Center for High Technol. Mater., Univ. of New Mexico, Albuquerque, NM
Abstract :
Effects of 137Cs gamma irradiation on photoluminescent properties of CdSe/ZnS colloidal quantum dots are reported. Optical degradation was evaluated by measuring dependence of photoluminescence intensity on irradiation dose. CdSe/ZnS quantum dots show poor radiation hardness.
Keywords :
II-VI semiconductors; cadmium compounds; gamma-ray effects; photoluminescence; semiconductor quantum dots; wide band gap semiconductors; zinc compounds; CdSe-ZnS; colloidal quantum dots; gamma irradiation; optical properties; photoluminescence; radiation hardness; Biomedical measurements; Biomedical optical imaging; Degradation; Light emitting diodes; Optical materials; Performance evaluation; Photoluminescence; Quantum dots; Stimulated emission; Zinc compounds; (160.2540) Fluorescent and luminescent materials; (160.4236) Nanomaterials;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
