Optical characteristics of Tl+ centers in CsCaCl3, KCaCl3, and CsCl crystals

Pressure-driven modification of optoelectronic features of ACaCl3 (A = Cs, Tl) for device applications

“…CsCaCl 3 demonstrated the same optical characteristics as the available theoretical results [ 33 ]. Furthermore, an experimental investigation indicates that the absorption spectra of Tl-doped CsCaCl 3 are positioned at approximately 7.4 eV [ 91 ], which is in excellent agreement with this study. The reason behind the increase of α under pressure is directly proportional to the electronic band gap.…”