Hot electron extraction from CdTe quantum dots via beta carotene molecular energy levels

Abstract

We report our findings related to hot electron extraction from CdTe quantum dots, and we were able to do this by using beta carotene as an electron acceptor. Transient absorption spectra with two slow recovering negative bleaches at the absorption maximum of the molecule and quantum dot have indicated the slowing down of cooling process and the existence of hot carriers in this hybrid system. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4730623]