DFT investigation of the electronic and optical properties of hexagonal MX2/ZrXO (M = W, Mo and X = S, Se) van der Waals heterostructures for photovoltaic solar cell application

Sibhatu, Aman Kassaye; Teshome, Tamiru; Akin-Ojo, Omololu; Yimam, Abubeker; Asres, Georgies Alene