(Invited) Engineering the Structure and Properties of Nanocrystals to Design Electronic Devices and Sensors

Abstract

Colloidal nanocrystals have been shown to be promising materials for device applications because of their unique size-dependent properties and solution processability. We present general methods to engineer the electronic, optoelectronic, electromechanical, and electrothermal properties of nanocrystals through their surface and interface engineering. Unconventional materials design and strategy are introduced to fabricate semiconducting devices such as field effect transistors, photodetectors, solar cells, and wearable sensors including temperature sensors, strain sensors, and pressure sensors. This technique provides a pathway for designing low cost, high performance, and multifunctional electronic skins or wearable devices.