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‘Lockdown’ of bright excitons in double perovskite nanocrystals


‘Lockdown’ of bright excitons in double perovskite nanocrystals

The days were bright for them, when e- and h+ used to meet at their close proximity club “Direct Bound Exciton” located at the X valley in a country named “Double Perovskite”. Unfortunately, they have to face a ‘lockdown’ just like us, forcing e- to move to his home town at the L valley leaving h+ behind at the X valley. While e- and h+ have to stay at home in different valleys, they communicate with each other via media “Indirect Transition”, which gives them at least a weak connection line!

If you are excited to know more about them, take a look at our new publication in ACS Nano to get your mind off things!

“Transfer of Direct to Indirect Bound Excitons by Electron Intervalley Scattering in Cs2AgBiBr6 Double Perovskite Nanocrystals” by A. Dey, A. F. Richter, DOI: 10.1021/acsnano.0c00997