Accession Number:

ADP011551

Title:

X-Ray Excited Luminescence and X-Ray Irradiation Effect on CdS sub 1-x Se sub x Nanocrystals Optical Absorption

Descriptive Note:

Corporate Author:

ACADEMY OF SCIENCES UZHHOROD (UKRAINE)INST OF ELECTRON PHYSICS

Personal Author(s):

• Gomonnai, A. V.
• Solomon, A. M.
• Azhniuk, Y. M.
• Kranjcec, M.
• Lopushansky, V. V.

Report Date:

2001-06-01

Pagination or Media Count:

6.0

Abstract:

X-ray excited luminescence and X-ray irradiation 10-3240 Gy effect on the optical absorption spectra of CdS1-xSex nanocrystals in borosilicate matrix are studied. The parameters of the luminescence bands are analyzed with the account of the luminescence of the host matrix it- self The observed smearing of quantum-size-related maxima and absorption edge blue shift with the irradiation dose increase are related to the X-ray ionization of the nanocrystals with charge-carrier transfer between the nanocrystals and the host matrix. The radiation-induced changes completely vanish at post-irradiation annealing to 575 K.

Descriptors:

• *OPTICAL PROPERTIES
• *ABSORPTION SPECTRA
• *X RAY LUMINESCENCE
• SYMPOSIA
• CHARGE CARRIERS
• CRYSTALS
• IRRADIATION
• LUMINESCENCE
• CROATIA
• UKRAINE
• CADMIUM SULFIDES
• NANOTECHNOLOGY
• QUANTUM DOTS

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE