This book shines a spotlight on the significance and usefulness of nanomaterials for the development of optoelectronic devices and their real-life applications. It presents an informative overview of the role of nanoscale materials in the development of advanced optoelectronic devices at nanoscale and discusses the applications of nanomaterials in different forms prepared by diverse techniques in the field of optoelectronic and biomedical devices. Major features, such as type of nanomaterials, fabrication methods, applications, tasks, benefits and restrictions, and saleable features, are well covered. This volume will be valuable for students, researchers, and scientists working in the field of nanotechnology, physics, chemistry, and materials science, providing a clear idea of the vast applications of nanomaterials in different forms prepared by diverse techniques in the field of optoelectronic and biomedical devices.