An amorphous poly(epsilon-caprolactone) (PCL(530))/siloxane hybrid doped with potassium triflate (KCF3SO3) and Eu(btfac)(3)phen (where btfac(-) is 4,4,4-trifluoro-1-phenyl-2,4-butanedionate and phen is 1,10-phenantroline) was synthesized by the sol-gel method. This hybrid exhibits a maximum and constant absolute emission quantum yield value of 0.26 +/- 0.03 under excitation within 330-360 nm. The performance of a prototype ECD based on a glass/ITO/WO3/electrolyte/NiO/ITO/glass incorporating this material is very encouraging. The device exhibited switching time around 50 s, an optical density change of 0.06, and a coloration efficiency of 23 cm(2)C(-1) in the 2nd cycle. This work demonstrates that the combined use of an ionic salt and a lanthanide complex as active species of an ECD's electrolyte offers attractive new prospects for the fabrication of light emitting electrochromic windows.
|Title of host publication||ECS Transactions|
|Publication status||Published - 1 Jan 2014|
|Event||International Symposium on Silicon Compatible Materials, Processes, and Technologies for Advanced Integrated Circuits and Emerging Applications 4 has been held as a part of the 225th Meeting of the Electrochemical-Society - |
Duration: 1 Jan 2014 → …
|Conference||International Symposium on Silicon Compatible Materials, Processes, and Technologies for Advanced Integrated Circuits and Emerging Applications 4 has been held as a part of the 225th Meeting of the Electrochemical-Society|
|Period||1/01/14 → …|