Ultrafast optical control of molecular nanodevices

Lead Research Organisation: Imperial College London
Department Name: Dept of Chemistry

Abstract

The aim of this project is to observe and harness the dynamics of the excited state in molecular and nanocrystal-based electronic materials and devices. The project will involve the development of a novel experimental system, which will use ultrafast IR light pulses to control the electronic dynamics of the excited state and vibrational motions of the molecules inside the active layer of the nanodevices. The effect of the low-energy optical excitation on the performance of the devices will be evaluated to uncover various fundamental aspects of charge dynamics and how these aspects can be used in molecular/plastic electronic applications. The results of this work will be instrumental in improving the functionality of molecular and quantum dot nanomaterials and optoelectronic systems.

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509486/1 01/10/2016 30/09/2021
1829348 Studentship EP/N509486/1 01/10/2016 30/09/2019 Thomas Roy Hopper
 
Description During the course of this award, an ultrafast optics setup was developed for the purpose of novel "multi-pulse" spectroscopic experiments to investigate the fate of electronic charges in a range of emerging organic and hybrid organic-inorganic semiconductors for solar energy conversion. By understanding how charges behave in these materials on ultrafast timescales, we attained molecular-level details which can be potentially exploited to develop new materials and devices with enhanced properties. These findings have been published in a number of high-profile journals and disseminated at international conferences.
Exploitation Route The insights provided by our ultrafast experiments could aid synthetic chemists and materials scientists involved in the fabrication and engineering of high-performance optoelectronic devices based on solution-processable semiconductors. Additionally, the "multi-pulse" methodologies that we have developed may be extended to study other light-matter interactions and photophysical phenomena in different emerging materials systems.
Sectors Chemicals,Electronics,Energy,Environment