Characterization of quantum dot/conducting polymer hybrid films and their application to light-emitting diodes
Jeonghun Kwak1, Wan Ki Bae2,1, Matthias Zorn3
1School of Electrical Engineering and Computer Science Inter-University Semiconductor Research Center (ISRC) Seoul National University Seoul, 151-744 (Republic of Korea).
Advanced Materials (Deerfield Beach, Fla.)
|November 8, 2014
Abstract:
Quantum dot/conducting polymer hybrid films are used to prepare light-emitting diodes (LEDs). The hybrid films (CdSe@ZnS quantum dots excellently dispersed in a conducting polymer matrix, see figure) are readily prepared by various solution-based processes and are also easily micropatterned. The LEDs exhibit a turn-on voltage of 4 V, an external quantum efficiency greater than 1.5%, and almost pure-green quantum-dot electroluminescence.
