Multifunctional Applications Enabled by Fluorination of Hexagonal Boron Nitride

• DOI: 10.1002/smll.202311836
• Publication Date: 2024-05-21T12:22:01Z
• Authors: Devashish Salpekar; Peter Serles; Guillaume Colas; Li Ma; Shwetank Yadav; Mahdi Hamidinejad; Valery N Khabashesku; Guanhui Gao; Venkataraman Swam...; Robert Vajtai; Chandra Veer Singh; Chul Park; Tobin Filleter; AshokKumar Meiyaz...; Pulickel M. Ajayan
• Keywords: Surface Modification; Microelectronics; Inert; Hexagonal boron nitride; Fluorine

2D materials exhibit exceptional properties as compared to their macroscopic counterparts, with promising applications in nearly every area of science and technology. To unlock further functionality, the chemical functionalization structures is a powerful technique that enables tunability new within these materials. Here, successful effort chemically functionalize hexagonal boron nitride (hBN), inert ceramic weak interlayer forces, using gas-phase fluorination process exploited. The fluorine guides expansion increased polar surface charges on hBN sheets resulting number vastly improved applications. Specifically, F-hBN exhibits enhanced dispersibility thermal conductivity at higher temperatures by more than 75% offering performance thermofluid additive. Dispersion low volumes lubricating oils also offers marked improvements lubrication wear resistance for steel tribological contacts decreasing friction 31% 71%. Additionally, incorporating numerous negatively charged atoms induces permanent dipole moment, demonstrating its applicability microelectronic device findings suggest anchoring functionalities moieties improves variety h-BN, making it suitable other such fillers or reinforcement agents developing high-performance composite structures.