Perovskite Based Coupled Light Emitters for Enhanced Energy Efficiency
Ranjani Viswanatha a
a 1
Proceedings of Applied Light-Matter Interactions in Perovskite Semiconductors 2021 (ALMIPS2021)
Online, Spain, 2021 October 5th - 7th
Organizers: Rafael Sánchez Sánchez and Miguel Anaya
Invited Speaker, Ranjani Viswanatha, presentation 019
Publication date: 23rd September 2021

Recently the metal halide perovskite nanoparticles have attracted a lot of attention for various opto-electronic applications like micro/nano lasers, light emitting diodes, photodetectors along with solar cells due to their low fabrication costs as well as excellent electronic and optical properties.  However, dominant surface trapping continues to plague the field, despite their high defect tolerance, as evidenced by the several fold improvements in the external quantum efficiency of perovskite nanocrystals (NCs) upon appropriate surface passivation or physical confinement between high band gap materials.  In a bid towards minimizing energy loss, in this talk I introduce unique pathways to harvest additional photons via enhanced absorption and additional excitonic recombination pathways that are so far not extensively explored through doping [1] and heterostructure formation [2].


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