Haque, Farjana, Md. Moshiur Rahman, Md. Abdullah Al Mahmud, M. Subbir Reza, Munmun Akter, and A.H.M Zadidul Karim. “Chemically Converted Graphene As a Hole Transport Layer (HTL) Inorganic Photovoltaics (OPVS)”. Engineering International 6, no. 1 (December 4, 2018): 7–20. Accessed January 29, 2026. https://ei.observer/article/view/170.