From Chiral-Specific CNT to Flat, Wrinkled, Tubular hBN—Growth and Electronics, In Theory

Following the broad scope of the symposium, we will first discuss the “Holy Grail”, long stading challenge of carbon nanotube research: how to synthesis nanotubes aof a desired chral symmetry, in order to have uniform electronic and optical properties. Recent ideas based on evolutionary selection can achieve it, in principle, while significant technical hurdles must be overcome yet.<br/><br/>We will then turn to other material for which chirality seems not being an issue, hexagonal boron nitride always an insulator, either tubular BNNT or planar hBN. What chemical precursors are needed as building units and how do they form in the gas phase of CVD varieties? For bilayer hBN, an intriguing possibility of creating new electronic properties by its undulation can also be of further great interest, to be discussed if time permits.<br/>Supported by the DOE BES grant DE-SC0012547) and in part (BL hBN electronics) by the ONR grant N00014-22-1-2788.