Vanessa Wood

Date

20 May 2015

Host

Klaus Ensslin

Title

Colloidal Nanocrystals for Optoelectronics: Understanding the Physics of Recombination and Charge Transport

Abstract

Colloidal nanocrystals are crystals of semiconductor 2–12 nanometers in diameter that are grown in rapid, solution-based chemical reactions. They have recently found commercialization in TV displays and are of promise for solar cells due to their ability to be manufactured at low-cost and their attractive optical properties, such as size-dependent bandgaps. This talk presents recent work using electronic, optical, and neutron spectroscopies along with ab initio and empirical simulations that has yielded insights into the mechanisms at play in these quantum systems and ways they can be engineered to obtain higher performance materials and devices.