Joshi P, Lawaju U, B.K. B. Composite of lampblack and printer toner powder as a low-cost counter electrode material for dye-sensitized solar cells. BIBECHANA [Internet]. 2020 Jan. 1 [cited 2024 Jul. 17];17:58-66. Available from: https://nepjol.info/index.php/BIBECHANA/article/view/25598