Options
Plasmonic nanocavity enhanced luminescence for in-plane and out-of-plane excitons in BA <inf>2</inf>PbI <inf>4</inf> Ruddlesden Popper perovskite thin film
Journal
MRS Advances
Date Issued
2022-10-01
Author(s)
Gupta, Yashika
Singh, Anuj K.
Anand V. S, Abhay
Kumar, Anshuman
Abstract
In this work, we propose an easy-to-fabricate plasmonic cavity design to enhance luminescence from BA 2PbI 4 Ruddlesden Popper thin films, which otherwise suffer from a very low quantum yield due to strong exciton-phonon interactions in the lattice. We designed a nanoparticle on mirror plasmonic cavity using 3D-finite-difference time-domain simulations, with perovskite film sandwiched between the two metallic structures yielding a 7-fold local enhancement in photoluminescence for intralayer excitons emitting at 520 nm. The designed cavity also aids the detection of interlayer excitons at 540 nm, for which a huge PL enhancement of more than 1500 times is easily obtained. Graphical abstract: [Figure not available: see fulltext.]
Volume
7