Nano-structured Electronic Devices for Energy Conversion and Storage

In the present scenario, nanotechnology has played a significant role in the development of electronic technology. Electronics has played a pivotal role in making human life more functional, accurate and fast while creating a space for development of new nanotechnology-based miniaturized devices. Today we are using various smart devices like smart mobile phones, smart watches, mini laptops, LED TVs, mini data storage devices and so on in our day to day life. All these devices are using nanotechnology in a smart and efficient way. All these electronic devices require energy supply in such a way that the amount of energy required for the device will be more enough without disturbing the size of the devices. For this aspect, the role of nanomaterials is very important in the field of energy conversion and energy storage to enhance the energy storage/supply for nano-miniaturized devices. This chapter gives an overview and sheds light on the use of nanomaterials to obtain different opto-electronic and energy storage devices in different sectors of energy applications. Energy application can be divided into two parts: energy conversion and energy storage. The first part provides the layout to the reader with basic principles and background of nanomaterials for energy conversion such as solar cells. While, the second part focuses on the applications of nanotechnology in energy storage such as Li-ion batteries and supercapacitors. The fusions of these two opto-electronic devices with nanotechnology have resulted in advancement of a research in area of nano sciences.