Karki I, Nakarmi J, Mandal P, Chatterjee S. Absorption Spectra of Natural Dyes and Their Effect on Efficiency of ZnO Based Dye-Sensitized Solar Cells. Nepal Journal of Science and Technology [Internet]. 2013 Jan. 21 [cited 2024 Nov. 21];13(1):179-85. Available from: https://nepjol.info./index.php/NJST/article/view/7457