“The Impact of Central Metal Ions in Porphyrin Functionalized ZnO TiO2 for Enhanced Solar Energy Conversion”. Journal of Materials NanoScience 1, no. 1 (July 16, 2014): 12–30. Accessed May 3, 2024. https://pubs.thesciencein.org/journal/index.php/jmns/article/view/216.