Recent improvements on TiO2 and ZnO nanostructure photoanode for dye sensitized solar cells: A brief reviewNurnaeimah Jamalullail, Ili Salwani Mohamad, Mohd Natashah Norizan, Norsuria Mahmed and Bibi Nadia TaibEPJ Web Conf., 162 (2017) 01045DOI: https://doi.org/10.1051/epjconf/201716201045