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a Faculty of Science, Energy, and Environment, King Mongkut’s University of
Technology North Bangkok, Rayong Campus, Rayong 21120, Thailand
b Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
c School of Materials Science and Innovation, Faculty of Science, Mahidol
University, Nakhon Pathom 73170, Thailand
Journal of Ovonic Research 2025, 21(3),377-385; https://doi.org/10.15251/JOR.2025.213.377
The Sr2TiO4–TiO2 heterojunctions were synthesized using a reflux method with various concentrations of NaOH. The synthesized heterojunctions were characterized for their morphological and structural properties using SEM, TEM, XRD, and XPS. The
optical properties were analyzed using UV-vis DRS. The fabricated heterojunction photoanodes were incorporated into dye-sensitized solar cells (DSSCs) devices, and their photovoltaic performance was evaluated under simulated sunlight. Our results indicate that the Sr2TiO4–TiO2 heterojunction photoanode fabricated at a pH of 7 and subjected to reflux synthesis at 90°C exhibited the highest energy conversion efficiency among the tested samples.
