Boron nitride nanotubes (BNNTs) have been identified as a promising dielectric host template for fluorescent molecules because of their wide-gap semiconductors of ~5.5 eV [1-3]. In this presentation we will focus on the different way to organize luminescent dyes and molecular spacers inside BNNTs, to form 1D chains from single molecules arrays to periodic J-aggregates. Finally, combining ac-HRTEM, Electron Energy Loss Scanning TEM (STEM-EELS) at 80kV and time resolved fluorescence images we will demonstrate that assemblies of aligned and regularly spaced dyes in BNNTs display strong superradiant light emission fingerprints at room temperature with shortened lifetime by more than a decade, while keeping high brightness [4]. These multifunctional nanohybrids open a new route toward robust and low cost materials platform for quantum photonics technologies.
References:
[1] C. Allard et al, Advanced Materials, 32,29 (2020)
[2] A. Badon & J.-B Marceau et al, Materials Horizons 10, 983-992 (2023)
[3] J-B Marceau et al, ACS Nano, (2025)
[4] J-B Marceau et al, Encoded Dipolar Chains: from single molecule arrays to superradiant emitters (in prep.)
