Nano Electronics — Prelims Questions

Which of the following quantum mechanical phenomena is NOT directly exploited in the design of current or emerging nanoelectronic devices?

Consider the following statements regarding Carbon Nanotubes (CNTs) and Graphene in nanoelectronics: 1. Both CNTs and Graphene are 2D materials of carbon atoms. 2. CNTs can exhibit either metallic or semiconducting properties depending on their chirality. 3. Graphene possesses exceptionally high electron mobility, making it suitable for ultra-fast transistors. Which of the statements given above is/are correct?

Which of the following nanofabrication techniques is primarily a 'bottom-up' approach?

Consider the potential applications of nanoelectronics: 1. Enhancing the efficiency of solar cells. 2. Developing highly sensitive sensors for environmental monitoring. 3. Creating neuromorphic chips for energy-efficient Artificial Intelligence. 4. Enabling faster and more compact memory devices. Which of the above applications are directly supported by advancements in nanoelectronics?

Which of the following is a significant challenge faced by nanoelectronics in achieving widespread commercialization?