Encapsulation of the Graphene Nanoribbon Precursor 1,2,4‐Trichlorobenzene in Boron Nitride Nanotubes at Room Temperature

• DOI: 10.1002/pssr.202200284
• Publication Date: 2022-09-28T14:02:49Z
• Authors: Ana Cadena; Áron Pekker; Bea Botka; Erzsébet Dodony; Zsolt Fogarassy; Béla Pécz; Katalin Kamarás
• Keywords: Condensed Matter - Materials Science; QC Physics / fizika; 0103 physical sciences; Materials Science (cond-mat.mtrl-sci); FOS: Physical sciences; QD02 Physical chemistry / fizikai kémia; 01 natural sciences

Graphene nanoribbons are prepared inside boron nitride nanotubes by liquid phase encapsulation and subsequent annealing of 1,2,4‐trichlorobenzene. The product is imaged with high‐resolution transmission electron microscopy, and characterized by optical absorption and Raman spectroscopy. Carbon‐containing material is detected inside the boron nitride nanotubes with energy‐dispersive X‐ray spectroscopy (EDS) and scanning transmission electron microscopy (STEM). The observed structures twist under the electron beam and the characteristic features of nanoribbons appear in the Raman spectra.