# Recent News and Publications

<div drawio-diagram="2915"><img src="https://kb.astate.edu/uploads/images/drawio/2026-05/drawing-4534-1777926443.png" alt=""/></div>

<p class="callout info">[![jpclcd.2023.14.issue-46.xlargecover-3-624x830.jpg](https://kb.astate.edu/uploads/images/gallery/2026-05/scaled-1680-/jpclcd-2023-14-issue-46-xlargecover-3-624x830.jpg)](https://kb.astate.edu/uploads/images/gallery/2026-05/jpclcd-2023-14-issue-46-xlargecover-3-624x830.jpg)</p>

[![Comet-Tsuchinshan–ATLAS.jpg](https://kb.astate.edu/uploads/images/gallery/2026-05/scaled-1680-/comet-tsuchinshan-atlas.jpg)](https://kb.astate.edu/uploads/images/gallery/2026-05/comet-tsuchinshan-atlas.jpg)**Comet Tsuchinshan-ATLAS** as viewed from Northeast Arkansas (mid-October 2024)  
Credit: Justin Crossno, Arkansas State University.

[![Northern-Lights.jpg](https://kb.astate.edu/uploads/images/gallery/2026-05/scaled-1680-/northern-lights.jpg)](https://kb.astate.edu/uploads/images/gallery/2026-05/northern-lights.jpg)

### Recent Publications

<p class="callout info"><span style="color: rgb(35, 111, 161);">[The nature of defect tolerance in (some) halide perovskites](https://doi.org/10.1063/5.0282710)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);">[The halogen vacancy, Tl-activator, and Tl-bound excitons in CsI:Tl scintillator](https://doi.org/10.1063/5.0280840)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);">[Presentation on **Cs<sub>2</sub>HfCl<sub>6</sub>**](https://urldefense.com/v3/__https://youtu.be/BJrAooRiifY__;!!PirnAJVEmx4jpg!4cWs7xcSUzYoOumV6Lt3DzpJdtdQgzpG0S3EFBT243SyrzfN_Mju79ZOx5Crf6Aq3BM-20b-tLHPbTcjj_NUfsax2ZN_Hg%24)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);">[Case of the Bromine Vacancy in Cs<sub>4</sub>PbBr<sub>6</sub>](https://doi.org/10.1021/acs.jpclett.3c02732) (Journal of Physical Chemistry Letters)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);"><span class="has-inline-color has-blue-color">[Revisiting the origin of green emission in Cs<sub>4</sub>PbBr<sub>6</sub>](https://doi.org/10.1039/D2MA00544A)</span>(Materials Advances)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);"><span class="has-inline-color has-blue-color">[Metal Halide Semiconductors beyond Lead-Based Perovskites for Promising Optoelectronic Applications](https://doi.org/10.1021/acs.jpclett.1c02877)</span> (Journal of Physical Chemistry Letters)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);"><span class="has-inline-color has-blue-color">[Phase transition pathway of hybrid halide perovskites under compression: Insights from first-principles calculations](https://doi.org/10.1103/PhysRevMaterials.5.054603)</span> (Phys. Rev. Materials)</span></p>

<p class="callout info"><span style="color: rgb(35, 111, 161);">[<span class="has-inline-color has-blue-color">New Polymorphs of 2D Indium Selenide with Enhanced Electronic Properties</span>](https://doi.org/10.1002/adfm.202001920) (Advanced Functional Materials)</span></p>