This book offers readers an extensive insight into advanced nanomaterials and their applications in the realm of energy generation and utilization. It places a specific emphasis on emerging nanomaterials and their diverse applications within energy-related sectors and sensor technology. The primary focus is on comprehending how these materials enhance the performance of energy storage devices and sensors. Furthermore, the book provides a comprehensive overview of the significant challenges faced in these areas and presents a forward looking perspective. Comprising ten chapters, the book extensively explores the applications of nanomaterials in energy-related fields, specifically in solar cells, supercapacitors, sensors, and more. It caters to the needs of budding researchers involved in the synthesis of nanomaterials and post-graduate students interested in delving into the intricacies of nanomaterials.