Published December 2001 | Version v1
Journal article Metadata-only

Role of Ga3+ in SrTiO3:Pr,Ga phosphor studied through its aging behavior under low-dose electron irradiation

Creators

  • 1. Korea Advanced Institute of Science and Technology, Dept. of Materials Science and Engineering, Yusong, Taejon (Korea, Republic of)
  • 2. Electronics and Telecommunications Research Institute, Micro-Electronics Technology Lab., Yusong, Taejon (Korea, Republic of)

Description

We have studied the role of Ga3+ ions in SrTiO3:Pr,Ga phosphor through its aging behavior. At the early stage of electron irradiation with a charge dose rate of 100 μC/cm2 per second, the cathodoluminescence (CL) intensity of SrTiO3:Pr,Ga phosphor drops. On the other hand, it is found that SrTiO3:Pr,Ga phosphor shows different aging characteristics from SrTiO3:Pr as the electron irradiation proceeds. However, from a reduced beam current density irradiation with a charge dose rate of 1.2 μC/cm2 per second, it is determined that the Ga3+ ion acts as a hole-keeping center and increases the luminescence by providing a hole to the activator Pr3+ ion in the luminescence process. (author)

Additional details

Publishing Information

Journal Title
Japanese Journal of Applied Physics. Part 1, Regular Papers, Short Notes and Review Papers
Journal Volume
40
Journal Issue
12
Journal Page Range
p. 6876-6877
ISSN
0021-4922

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
33022048
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
AGING; DOSE RATES; ELECTRON BEAMS; EXPERIMENTAL DATA; GALLIUM IONS; IRRADIATION; LUMINESCENCE; PHOSPHORUS; PHYSICAL RADIATION EFFECTS; PRASEODYMIUM; STRONTIUM TITANATES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BEAMS; CHARGED PARTICLES; DATA; ELEMENTS; EMISSION; INFORMATION; IONS; LEPTON BEAMS; METALS; NONMETALS; NUMERICAL DATA; OXYGEN COMPOUNDS; PARTICLE BEAMS; PHOTON EMISSION; RADIATION EFFECTS; RARE EARTHS; STRONTIUM COMPOUNDS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
11 refs., 2 figs.