G. N. Nwaji, H. O. Okoro, C. Ononogbo, Muhammad Ahmad, S. Mbamalu, C. C. Nzelu, O. U. Emekwuo, C. Okwuosa, N. V. Ogueke, and E. E. Anyanwu. “Dual-Layered Titanium Oxide-Acrylic Film on Carbon Black for Passive Radiative Cooling below Ambient Temperature under Direct Solar Irradiance”. Advanced Energy Conversion Materials, vol. 3, no. 2, Sept. 2022, pp. 76-87, doi:10.37256/aecm.3220221525.