Department of Physics and Astronomy: Publications and Other Research
Document Type
Article
Date of this Version
10-2011
Citation
Applied Physics Letters (2011) 99: 153112
doi: 10.1063/1.3651322
Abstract
We report controllable tuning of the room temperature photoluminescence band of CdSe semiconductor quantum dots embedded in thin films of ferroelectric copolymer of vinylidene fluoride and trifluoroethylene made by Langmuir-Blodgett deposition. The high breakdown strength of the polymer permits the application of electric fields of up to 400 MV/m and results in a shift in the photoluminescence peak by up to 9 nm, nearly half the fluorescence band width. Moreover, we found that at these high electric fields, the Stark effect exhibits unusual fourth power dependence.
Comments
Copyright 2011, American Institute of Physics. Used by permission