Quantum confinement of zero-dimensional hybrid organic-inorganic polaritons at room temperature

TL;DR

This paper demonstrates room-temperature quantum confinement of zero-dimensional hybrid organic-inorganic polaritons in perovskite microcavities, revealing discrete states with sharp linewidths and potential for integrated polaritonic devices.

Contribution

It introduces a method to confine polaritons in microstructures at room temperature, enabling new studies and applications of organic-inorganic cavity polaritons.

Findings

Discrete polaritonic states observed in confined microstructures

Linewidth of confined states is nearly ten times sharper than in planar cavities

Spontaneous nucleation of sphere-like defects enables confinement

Abstract

We report on the quantum confinement of zero-dimensional polaritons in perovskite-based microcavity at room temperature. Photoluminescence of discrete polaritonic states are observed for polariton localized in symmetric sphere-like defects which are spontaneously nucleated on the top dielectric Bragg mirror. The linewidth of these confined states are found much sharper (almost one order of magnitude) than that of photonic modes in the perovskite planar microcavity. Our results show the possibility to study organic-inorganic cavity polariton in confined microstructure and suggest a fabrication method to realize integrated polaritonic devices operating at room temperature.