Pressure-induced giant emission enhancement, large band gap narrowing and rich polymorphism in two-dimensional 1,2,4-triazolium lead bromide perovskite†
Mirosław Mączka, Filip Dybała, Artur P. Herman, Waldeci Paraguassu, Antonio José Barros dos Santos, Robert Kudrawiec · 2024
Read Pressure-induced giant emission enhancement, large band gap narrowing and rich polymorphism in two-dimensional 1,2,4-triazolium lead bromide perovskite† by Mirosław Mączka, Filip Dybała, Artur P. Herman, Waldeci Paraguassu, Antonio José Barros dos Santos, Robert Kudrawiec (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11618524.txt.
Description
Mirosław Mączka and colleagues squeeze a layered perovskite crystal and watch its light output change. Their materials study from twenty twenty-four examines a lead bromide perovskite. Such layered crystals attract interest for light-based devices. Temperature and pressure both reshape how they glow.
At room temperature the crystal emits a narrow band of light. Cooling reveals extra bands tied to trapped energy states. Pressure triggers three structural changes in sequence. Each change distorts the crystal network further. Light emission first grows much stronger under pressure. Its colour also shifts as the energy gap narrows. The rich set of phases helps designers tune these crystals for devices.
Catalog record
| CREATOR | Mirosław Mączka, Filip Dybała, Artur P. Herman, Waldeci Paraguassu, Antonio José Barros dos Santos, Robert Kudrawiec |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 33 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |