Pressure induced emergence of visible luminescence in $C{s}_{3}B{i}_{2}B{r}_9$: Effect of structural distortion in optical behaviour

Debabrata Samanta, Pinku Saha, Bishnupada Ghosh +4

We report emergence of photoluminescence at room temperature in trigonal $C{s}_{3}B{i}_{2}B{r}_9$ at high pressures. Enhancement in intensity with pressure is found to be driven by increase…