S. Sardar, P. Kar, and S. K. Pal, “The Impact of Central Metal Ions in Porphyrin Functionalized ZnO/TiO2 for Enhanced Solar Energy Conversion”, J Mater NanoSci, vol. 1, no. 1, pp. 12–30, Jul. 2014, Accessed: Jul. 03, 2024. [Online]. Available: https://pubs.thesciencein.org/journal/index.php/jmns/article/view/216