Structure and scintillation properties of CsI(Tl) films on Si single crystal substrates

Lina Guo, Shuang Liu, Dejun Chen, Shangjian Zhang, Yong Liu, Zhiyong Zhong, Charles M Falco

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

CsI(Tl) scintillation films fabricated on glass substrates are widely applied for X-ray imaging because their ability to grow in micro-columnar structure and proper emission wavelength matching CCD cameras. But the coupling process between the CsI(Tl) films and Si-based photo detector would cause coupling loss. In this work, CsI(Tl) films were deposited on the orienting Si substrates and the Si substrates covered by the pre-deposited CsI nanolayers. Structure and scintillation properties of films were examined by using scanning electron microscopy, X-ray diffraction, photoluminescence and radioluminescent spectrum. The films deposited on the orienting Si substrates show the micro-columnar morphology with perfect single crystalline structure and the photoluminescence spectra with bimodal distribution. The performances of the films prepared on the pre-deposited CsI nanolayer, containing micro-columns structure and the light yield are improved.

Original languageEnglish (US)
Pages (from-to)225-229
Number of pages5
JournalApplied Surface Science
Volume384
DOIs
StatePublished - Oct 30 2016

Fingerprint

Scintillation
Single crystals
Substrates
Photoluminescence
CCD cameras
Crystalline materials
Detectors
Imaging techniques
X ray diffraction
X rays
Glass
Wavelength
Scanning electron microscopy

Keywords

  • Photoluminescence
  • Scintillation films
  • Structure
  • Vacuum deposition

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Structure and scintillation properties of CsI(Tl) films on Si single crystal substrates. / Guo, Lina; Liu, Shuang; Chen, Dejun; Zhang, Shangjian; Liu, Yong; Zhong, Zhiyong; Falco, Charles M.

In: Applied Surface Science, Vol. 384, 30.10.2016, p. 225-229.

Research output: Contribution to journalArticle

Guo, Lina ; Liu, Shuang ; Chen, Dejun ; Zhang, Shangjian ; Liu, Yong ; Zhong, Zhiyong ; Falco, Charles M. / Structure and scintillation properties of CsI(Tl) films on Si single crystal substrates. In: Applied Surface Science. 2016 ; Vol. 384. pp. 225-229.
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AU - Falco, Charles M

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