This book covers 2D materials, transistors, and low-power transistor technologies. It also discusses a wide range of semiconductor devices, including transistors, LEDs, energy harvesting devices, and spintronics devices. • Covers nanoscale semiconductor materials, low-power transistors, and applications in integrated circuits. • Offers comprehensive coverage of design, simulation, and experimentation for a range of field-effect transistors. • Highlights the importance of using piezoelectric nanogenerators for energy applications. • Showcases the developments in nanoscale device simulation and opportunities in electronic fabrication. • Explains the latest nanoscale sensors, micro- to nanoscale energyharvesting devices, and nano energy storage devices. The book is primarily written for senior undergraduates, graduate students, and academic researchers in electrical engineering, electronics, and communications engineering.