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Title of article :
Electro-optical properties of the DNA-Eu3+ bio-membranes
Author/Authors :
Leones، نويسنده , , R. and Rodrigues، نويسنده , , L.C. and Fernandes، نويسنده , , M. and Ferreira، نويسنده , , R.A.S. and Cesarino، نويسنده , , I. and Pawlicka، نويسنده , , A. and Carlos، نويسنده , , L.D. and de Zea Bermudez، نويسنده , , V. and Silva، نويسنده , , M.M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
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Abstract :
Biopolymer-based materials have particular interest and they are alternatives to synthetic polymers based on the decreasing oil resources. In this report they may be viewed as innovative materials for optics area. The incorporation of Eu3+ into natural macromolecules hosts with purpose of producing highly efficient emitting phosphors is of widespread interest in materials science, due to their important roles in display devices. This paper describes studies of the DNA and europium triflate luminescent membranes and its potential technological applications are expanded to electroluminescent devices. The most conductive sample of DNA50Eu, exhibited an ionic conductivity equal to 1.02 × 10−4 S cm−1 and 1.55 × 10−3 S cm−1 at 25 °C and 90 °C, respectively. Techniques like DSC, XRD and POM, demonstrated that the inclusion of the guest salt does not change significantly the amorphous nature morphology of the samples. Moreover, the overall redox stability of 2.0 V was an indication that this material has an acceptable stability window for an application in a solid state electrochemical devices.
Keywords :
ionic conductivity , Photoluminescent membrane , DNA
Journal title :
Journal of Electroanalytical Chemistry
Link To Document :