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Scalable photonic sources using two-dimensional lead halide perovskite superlattices

Physics

Scalable photonic sources using two-dimensional lead halide perovskite superlattices

J. Jagielski, S. F. Solari, et al.

This groundbreaking research by Jakub Jagielski and colleagues delves into miniaturized photonic sources using semiconducting two-dimensional materials, revealing how quantum-confined structures enhance light outcoupling through unique dipole moments. Discover the potential of decoupled multi-quantum-well superlattices of lead halide perovskites with ultrathin barriers.

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Playback language: English
Abstract
Miniaturized photonic sources based on semiconducting two-dimensional (2D) materials offer new technological opportunities. The quantum-confined 2D electronic structure aligns the exciton transition dipole moment parallel to the surface plane, enhancing light outcoupling. This paper reports decoupled multi-quantum-well superlattices of colloidal quantum wells of lead halide perovskites with ultrathin quantum barriers (6.5 Å). Crystallographic and 2D k-space spectroscopic analysis confirms interlayer decoupling and predominantly in-plane transition dipole moment orientation, independent of stacking layer and barrier thickness.
Publisher
Nature Communications
Published On
Jan 20, 2020
Authors
Jakub Jagielski, Simon F. Solari, Lucie Jordan, Declan Scullion, Balthasar Blülle, Yen-Ting Li, Frank Krumeich, Yu-Cheng Chiu, Beat Ruhstaller, Elton J.G. Santos, Chih-Jen Shih
Tags
photonic sources
two-dimensional materials
quantum wells
lead halide perovskites
exciton transition
decoupling
in-plane dipole

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