Light emissive nanostructures were prepared from boron nitride nanotubes (BNNTs) filled with inorganic lead halide perovskites. These one-dimensional nanocontainers provide a platform for facile synthesis of high aspect ratio perovskite quantum wires having color-tunable, highly polarized emission. BNNTs form a flexible and robust protective shell around individual nanowires, that mitigates degradation during post-processing for practical applications, while allowing to exploit the emission of the perovskite nanowires. The wire diameter can be tuned by choosing appropriate BNNT hosts, giving easy access to well-defined nanowires across the strongly quantum-confined diameter range. The individual encapsulated quantum wires can be used as building blocks for nanoscale photonic devices, and to create large-scale flexible assemblies.
@article{arxiv.2508.19833,
title = {Emissive perovskite quantum wires in robust nanocontainers},
author = {Bea Botka and Erzsébet Dodony and Gergely Németh and Michael Stratton and Ildikó Harsányi and János Mózer and Éva Kováts and Ferenc Borondics and Katalin Kamarás},
journal= {arXiv preprint arXiv:2508.19833},
year = {2026}
}