This International World Energy Conference was held December 03-04, 2021, in Kayseri, Turkey and is a premier venue for engaging scholars and practitioners who are passionate and well driven to make a change in transitioning the world to a sustainable energy future. It reflects the last advances in semiconductor physics that define the modern trend in developing micro-, optoelectronics, photonic devices, and photovoltaics. Analysis of the possibility of the modified clay to absorb the industrial dye and numerical simulation of direct tensile test of reinforced concrete are also presented. This edition will be helpful to many specialists in their theoretical and experimental studies.
