AOJ Solar and Photoenergy Systems (AOJSPS) is an open access journal that publishes high-quality research papers, review articles, and communications related to solar energy and photoenergy systems. The journal focuses on various aspects of solar and photoenergy systems, including design, development, optimization, and application of solar cells, solar panels, photovoltaic systems, and solar thermal systems. The aim of the journal is to promote and disseminate knowledge about renewable energy sources, with a particular focus on solar energy, to researchers, scientists, engineers, and industry professionals.