Effects of Gamma Irradiation on Optical Properties of Colloidal Nano-crystals

Conference · Tue Jul 01 00:00:00 EDT 2008

OSTI ID:21091582

Withers, Nathan J; Sankar, Krishnaprasad; Akins, Brian A; Memon, Tosifa A; Smolyakov, Gennady A; Osinski, Marek ^[1]; Gu, Jiangjiang; Gu, Tingyi; Bowers, Shin T ^[1]; Greenberg, Melisa R ^[1]; Busch, Robert D ^[2]

---

1. Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico (United States)
2. Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico (United States)

The effects of {sup 137}Cs gamma irradiation on photoluminescence properties, such as spectra, light output, and lifetime, of several types of colloidal nano-crystals have been investigated. Irradiation-induced damage testing was performed on CdSe/ZnS, LaF{sub 3}:Eu, LaF{sub 3}:Ce, ZnO, and PbI{sub 2} nano-crystals synthesized on a Schlenk line using appropriate solvents and precursors. Optical degradation of the nano-crystals was evaluated based on the measured dependence of their photoluminescence intensity on the irradiation dose. Radiation hardness varies significantly between various nano-crystalline material systems. (authors)

• Research Organization: Materials Research Society, 506 Keystone Drive, Warrendale, PA, 15086-7573 (United States)
• OSTI ID: 21091582
• Resource Relation: Conference: Symposium on Nuclear Radiation Detection Materials, Boston, MA (United States), 28-29 Nov 2007; Other Information: Country of input: France; Related Information: In: Proceedings of the symposium on Nuclear Radiation Detection Materials, by Perry, D.L. [ed. Lawrence Berkeley National Laboratory, MS 70A-1150, 1 Cyclotron Rd., Berkeley, CA 94720 (United States)]; Burger, A. [ed. Dept. of Physics, Fisk University, Nashville, TN 37208 (United States)]; Franks, L. [ed. Special Technologies Laboratory, Ste. B, 5520 Ekwill St., Santa Barbara, CA 93111 (United States)]; Schieber, M. [ed. Division of Applied Physics, The Hebrew University of Jerusalem, Bergman Bldg., Givat Ram, Jerusalem, 91904 (Israel)], v. 1038, [v] pages.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CADMIUM SELENIDES
CERIUM
CESIUM 137
CRYSTALS
DAMAGE
EUROPIUM
GAMMA RADIATION
IRRADIATION
LANTHANUM FLUORIDES
LEAD IODIDES
NANOSTRUCTURES
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
RADIATION DOSES
SOLVENTS
SPECTRA
ZINC OXIDES
ZINC SULFIDES