Published May 2019 | Version v1
Journal article Metadata-only

Comparison of X-ray Luminescence of CdSe0.02S0.98, LaF3:Ce3+/CdSe0.02S0.98, and CsPbI3

Creators

  • 1. Kyungpook National University, Department of Physics (Korea, Republic of)

Description

CdSe0.02S0.98 quantum dots (QDs), LaF3:Ce3+/CdSe0.02S0.98 nanocomposites (NCs), and CsPbI3 QDs were prepared to compare the properties of photoluminescence (PL) and X-ray excited luminescence (XEL) in these materials. CdSe0.02S0.98 QDs have an intense PL peak but negligible XEL. The LaF3:Ce3+/CdSe0.02S0.98 NCs have a single XEL peak and a corresponding PL peak. The XEL peak in LaF3:Ce3+/CdSe0.02S0.98 NCs originates from a resonance energy transition from LaF3:Ce3+ nanocrystals to CdSe0.02S0.98 QDs. The CsPbI3 QDs, which contain the heavy element Pb (atomic number Z = 82), exhibited a higher XEL than the CdSe0.02S0.98 QDs and the LaF3:Ce3+/CdSe0.02S0.98 NCs.

Additional details

Identifiers

DOI
10.3938/jkps.74.876;

Publishing Information

Journal Title
Journal of the Korean Physical Society
Journal Volume
74
Journal Issue
9
Journal Page Range
p. 876-879
ISSN
0374-4884
CODEN
KPSJAS

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54085842
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ATOMIC NUMBER; CERIUM IONS; EFFECTIVE MASS; LANTHANUM FLUORIDES; MESONS; NANOCOMPOSITES; NANOCRYSTALS; PHOTOLUMINESCENCE; QUANTUM DOTS; X RADIATION
Descriptors DEC
BOSONS; CHARGED PARTICLES; CRYSTALS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EMISSION; FLUORIDES; FLUORINE COMPOUNDS; HADRONS; HALIDES; HALOGEN COMPOUNDS; IONIZING RADIATIONS; IONS; LANTHANUM COMPOUNDS; LANTHANUM HALIDES; LUMINESCENCE; MASS; MATERIALS; NANOMATERIALS; NANOSTRUCTURES; PHOTON EMISSION; RADIATIONS; RARE EARTH COMPOUNDS

Optional Information

Copyright
Copyright (c) 2019 The Korean Physical Society