Tushar Debnath wins "2020 Virtual MRS Fall meeting Science as Art competition"

08.12.2020

Electrons and Holes Are In Quarantine!

The girls (electrons) and boys (holes) are in quarantine (confined) in different rooms (domains) of a house (nanocrystal) called “Mn-doped Perovskite Nanocrystals” due to the creation of different small rooms by the red bricks (Mn impurity) within a single nano-house, by displacing the bricks (unit cells) and know as “Ruddlesden–Popper defects”. The high-resolution image of such single Mn-doped Perovskite Nanocrystals was obtained from atomically resolved high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). If you are excited to know more about such nanocrystals, take a look at our recent publication:

Manganese-doping Induced Quantum Confinement within Host Perovskite Nanocrystals through Ruddlesden Popper Defects
by S. Paul, E. Bladt, A. F. Richter, M. Döblinger, Y. Tong, H. Huang, A. Dey, S.Bals, T. Debnath, L. Polavarapu, J. Feldmann. Angew. Chem. Int. Ed. 59 , 6794 (2020).