Flexible Selenium Nanowires with Tuneable Electronic Bandgaps.

ABSTRACT: Manipulating semiconductor properties without altering their chemical composition holds promise for electronic and optical materials. However, linking atomic positions in nanomaterials to their functional properties is challenging due to their polydispersity. This study utilizes nano test tubes to uncover distinct phases of selenium, an elemental semiconductor, demonstrating a remarkable structural plasticity between 0.4 and 3.0 nm. These structures are correlated with their electronic bandgaps, ranging from 2.2 to 2.5 eV, using ultra-low-loss electron energy loss spectroscopy and aberration-corrected scanning transmission electron microscopy for individual nanowires in boron nitride nanotubes (BNNT). Notably, the variation in bandgaps diverges from that of bulk selenium and is non-monoton

SUBMITTER: Cull WJ 

PROVIDER: S-EPMC12355565 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature