Development of self-activated Tl2ZnCl4 and Tl3ZnCl5 scintillators

Miki Arai, Yutaka Fujimoto, Masanori Koshimizu, Daisuke Nakauchi, Takayuki Yanagida, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We report the photoluminescence and scintillation properties of two new self-activated scintillators, based on Tl2ZnCl4 and Tl3ZnCl5 crystals with large effective atomic numbers (Zeff = 73.2 and 74.6, respectively), for application in X- and gamma-ray detection. The emission bands of the Tl2ZnCl4 and Tl3ZnCl5 crystals were observed at 472 nm. The peak wavelengths were characteristic of self-activated thallium-based chloride crystals. The estimated light yields of the Tl2ZnCl4 and Tl3ZnCl5 crystals were approximately 10,000 and 2100 photons/MeV, respectively. The light yield measured for Tl2ZnCl4 matches that of commercially available scintillators, such as Gd2SiO5(Ce) (10,000 photons/MeV).

Original languageEnglish
Article number110455
JournalOptical Materials
Publication statusPublished - 2020 Nov
Externally publishedYes


  • Scintillator
  • Self-activated
  • TlZnCl
  • TlZnCl

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering


Dive into the research topics of 'Development of self-activated Tl2ZnCl4 and Tl3ZnCl5 scintillators'. Together they form a unique fingerprint.

Cite this