A new publication by the team of prof. Jerzy Garbarczyk in Scientific Reports

Delta-Bi2O3 phase nanocrystallites trapped in the remains of a glass matrix.

A work entitled "Facile and reproducible method of stabilizing Bi2O3 phases confined in nanocrystallites embedded in amorphous matrix" team composed of: dr hab. Tomasz K. Pietrzak, Agata Jarocka, dr inż. Cezariusz Jastrzębski, dr inż. Tomasz Płociński (Faculty of Materials Science and Engineering PW), prof. dr hab. Marek Wasiucionek and prof. dr hab. Jerzy E. Garbarczyk.

The work was carried out as part of the IDUB POB TechMat-1 project. The conducted research is aimed at explaining the phenomenon of stabilization to room temperature of various phases - in this case bismuth oxide - in nanocrystallites trapped in the remains of the glass matrix. The authors managed to obtain stable beta, delta and gamma phases of bismuth oxide thanks to the application of the thermal nanocrystallization technique of glasses developed at our Department.

Bismuth oxide is attracting the attention of researchers around the world due to its interesting properties. In particular, the delta-Bi2O3 phase is the best known conductor of oxygen ions. Unfortunately, in the polycrystalline form it is stable only in a narrow temperature range of 730-830 ° C, which is one of the factors that make its practical application difficult.

Link to the article:  www.nature.com/articles/s41598-021-98435-5