Effect of sulfur concentration on electronic properties of h-BN monolayer: a computational study Qurat ul Ain Asif, Akhtar Hussain, Aamir Shahzad, Muhammad Kashif, Hamayl Asim and Saima Rashid Eur. Phys. J. Plus, 140 4 (2025) 288 Published online: 09 April 2025 DOI: 10.1140/epjp/s13360-025-06219-x