ACS appl. nano mater. ACS appl. nano mater. Chemistry and Interfacial Structure Promoting Quasi-van der Waals Epitaxial Growth of WS2 Nanosheets on Sapphire for Prospective Application in Field-Effect Transistors Majumder Supriyo Shinde Nitin Cavin John Chen Chen Dey Arka Bikash Narayanachari K.V.L.V. Zhang Jiaqi Garcia-Wetten David Dieguez Oswaldo Hettler Simon Cohen Assael Keane Denis T. Arenal Raul Rondinelli James M. Ismach Ariel Bedzyk Michael J. 2025 research-article