Recent News and Publications Comet Tsuchinshan-ATLAS as viewed from Northeast Arkansas (mid-October 2024) Credit: Justin Crossno, Arkansas State University. Recent Publications The nature of defect tolerance in (some) halide perovskites The halogen vacancy, Tl-activator, and Tl-bound excitons in CsI:Tl scintillator Presentation onĀ  Cs 2 HfCl 6 Case of the Bromine Vacancy in Cs 4 PbBr 6 (Journal of Physical Chemistry Letters) Revisiting the origin of green emission in Cs 4 PbBr 6 (Materials Advances) Metal Halide Semiconductors beyond Lead-Based Perovskites for Promising Optoelectronic Applications (Journal of Physical Chemistry Letters) Phase transition pathway of hybrid halide perovskites under compression: Insights from first-principles calculations (Phys. Rev. Materials) New Polymorphs of 2D Indium Selenide with Enhanced Electronic Properties (Advanced Functional Materials)