Sammanfattning
For single molecule spectroscopy (SMS), molecules under study are usually immobilized in a polymer matrix e. g. poly(methyl methacrylate). We show a very significant improvement of the conjugated polymer MEH-PPV photo-stability and decrease of the luminescence impurities concentration when the matrix is purified. We identify benzoyl peroxide (a common radical initiator) as a possible oxidizing agent which residuals in the polymer matrix destroy MEH-PPV. These results show that purification and selection of a matrix obtained by radical-free synthetic technique are of great importance for SMS as well as other technologies using polymer matrices as hosts for light-emitting materials. (C) 2014 Elsevier B. V. All rights reserved.
Originalspråk | engelska |
---|---|
Sidor (från-till) | 142-145 |
Tidskrift | Chemical Physics Letters |
Volym | 599 |
DOI | |
Status | Published - 2014 |
Bibliografisk information
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Chemical Physics (S) (011001060)
Ämnesklassifikation (UKÄ)
- Atom- och molekylfysik och optik