Synthesis and properties of nanocrystalline CsI

S. O. Klimonsky, K. F. Sheberstov, A. E. Gol'Dt, Alexander Sinitskii, V. Yu Yakovlev, L. N. Trefilova

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The structure and properties of fine CsI powders prepared by spray pyrolysis and synthetic opal (SiO 2 ) based composites containing CsI in their pores have been studied by electron microscopy, X-ray diffraction, and luminescence spectrometry. The powders consisted of nanocrystalline particles which increased in size from 35 to 55 nm with increasing pyrolysis temperature. In the opal/CsI composites, the CsI nanocrystallites were about 45-50 nm in size and formed a single three-dimensional network between the SiO 2 spheres. In going from bulk crystals to their nanocrystalline analogs, the size effect on CsI luminescence leads to a reduction in luminescence yield, a redshift of the emission bands of the on-center and off-center self-trapped excitons (STEs), and an increase in the contribution of the off-center STEs to the net intrinsic emission yield. The emission decay kinetics of the off-center STEs is insensitive to the crystallite size.

Original languageEnglish (US)
Pages (from-to)1033-1038
Number of pages6
JournalInorganic Materials
Volume47
Issue number9
DOIs
StatePublished - Sep 1 2011

Fingerprint

Excitons
Luminescence
Powders
Nanocrystallites
Spray pyrolysis
Composite materials
Crystallite size
Spectrometry
Electron microscopy
Pyrolysis
X ray diffraction
Crystals
Kinetics
LDS 751
Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Inorganic Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Klimonsky, S. O., Sheberstov, K. F., Gol'Dt, A. E., Sinitskii, A., Yakovlev, V. Y., & Trefilova, L. N. (2011). Synthesis and properties of nanocrystalline CsI. Inorganic Materials, 47(9), 1033-1038. https://doi.org/10.1134/S0020168511090111

Synthesis and properties of nanocrystalline CsI. / Klimonsky, S. O.; Sheberstov, K. F.; Gol'Dt, A. E.; Sinitskii, Alexander; Yakovlev, V. Yu; Trefilova, L. N.

In: Inorganic Materials, Vol. 47, No. 9, 01.09.2011, p. 1033-1038.

Research output: Contribution to journalArticle

Klimonsky, SO, Sheberstov, KF, Gol'Dt, AE, Sinitskii, A, Yakovlev, VY & Trefilova, LN 2011, 'Synthesis and properties of nanocrystalline CsI', Inorganic Materials, vol. 47, no. 9, pp. 1033-1038. https://doi.org/10.1134/S0020168511090111
Klimonsky SO, Sheberstov KF, Gol'Dt AE, Sinitskii A, Yakovlev VY, Trefilova LN. Synthesis and properties of nanocrystalline CsI. Inorganic Materials. 2011 Sep 1;47(9):1033-1038. https://doi.org/10.1134/S0020168511090111
Klimonsky, S. O. ; Sheberstov, K. F. ; Gol'Dt, A. E. ; Sinitskii, Alexander ; Yakovlev, V. Yu ; Trefilova, L. N. / Synthesis and properties of nanocrystalline CsI. In: Inorganic Materials. 2011 ; Vol. 47, No. 9. pp. 1033-1038.
@article{5230e2ef6cc140ba8f4fafbaf3817519,
title = "Synthesis and properties of nanocrystalline CsI",
abstract = "The structure and properties of fine CsI powders prepared by spray pyrolysis and synthetic opal (SiO 2 ) based composites containing CsI in their pores have been studied by electron microscopy, X-ray diffraction, and luminescence spectrometry. The powders consisted of nanocrystalline particles which increased in size from 35 to 55 nm with increasing pyrolysis temperature. In the opal/CsI composites, the CsI nanocrystallites were about 45-50 nm in size and formed a single three-dimensional network between the SiO 2 spheres. In going from bulk crystals to their nanocrystalline analogs, the size effect on CsI luminescence leads to a reduction in luminescence yield, a redshift of the emission bands of the on-center and off-center self-trapped excitons (STEs), and an increase in the contribution of the off-center STEs to the net intrinsic emission yield. The emission decay kinetics of the off-center STEs is insensitive to the crystallite size.",
author = "Klimonsky, {S. O.} and Sheberstov, {K. F.} and Gol'Dt, {A. E.} and Alexander Sinitskii and Yakovlev, {V. Yu} and Trefilova, {L. N.}",
year = "2011",
month = "9",
day = "1",
doi = "10.1134/S0020168511090111",
language = "English (US)",
volume = "47",
pages = "1033--1038",
journal = "Inorganic Materials",
issn = "0020-1685",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "9",

}

TY - JOUR

T1 - Synthesis and properties of nanocrystalline CsI

AU - Klimonsky, S. O.

AU - Sheberstov, K. F.

AU - Gol'Dt, A. E.

AU - Sinitskii, Alexander

AU - Yakovlev, V. Yu

AU - Trefilova, L. N.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - The structure and properties of fine CsI powders prepared by spray pyrolysis and synthetic opal (SiO 2 ) based composites containing CsI in their pores have been studied by electron microscopy, X-ray diffraction, and luminescence spectrometry. The powders consisted of nanocrystalline particles which increased in size from 35 to 55 nm with increasing pyrolysis temperature. In the opal/CsI composites, the CsI nanocrystallites were about 45-50 nm in size and formed a single three-dimensional network between the SiO 2 spheres. In going from bulk crystals to their nanocrystalline analogs, the size effect on CsI luminescence leads to a reduction in luminescence yield, a redshift of the emission bands of the on-center and off-center self-trapped excitons (STEs), and an increase in the contribution of the off-center STEs to the net intrinsic emission yield. The emission decay kinetics of the off-center STEs is insensitive to the crystallite size.

AB - The structure and properties of fine CsI powders prepared by spray pyrolysis and synthetic opal (SiO 2 ) based composites containing CsI in their pores have been studied by electron microscopy, X-ray diffraction, and luminescence spectrometry. The powders consisted of nanocrystalline particles which increased in size from 35 to 55 nm with increasing pyrolysis temperature. In the opal/CsI composites, the CsI nanocrystallites were about 45-50 nm in size and formed a single three-dimensional network between the SiO 2 spheres. In going from bulk crystals to their nanocrystalline analogs, the size effect on CsI luminescence leads to a reduction in luminescence yield, a redshift of the emission bands of the on-center and off-center self-trapped excitons (STEs), and an increase in the contribution of the off-center STEs to the net intrinsic emission yield. The emission decay kinetics of the off-center STEs is insensitive to the crystallite size.

UR - http://www.scopus.com/inward/record.url?scp=80053984293&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053984293&partnerID=8YFLogxK

U2 - 10.1134/S0020168511090111

DO - 10.1134/S0020168511090111

M3 - Article

VL - 47

SP - 1033

EP - 1038

JO - Inorganic Materials

JF - Inorganic Materials

SN - 0020-1685

IS - 9

ER -