The structure of QD-LEDs used for the electrical-excitation scheme is similar to basic design of OLEDs. A layer of quantum dots is sandwiched between layers of electron-transporting and hole-transporting materials. An applied electric field causes electrons and holes to move into the quantum dot layer and recombine forming an exciton that excites a QD. This scheme is commonly studied for quantum dot display. The tunability of emission wavelengths and narrow bandwidth is also beneficial as excitation sources for fluorescence imaging. Fluorescence near-field scanning optical microscopy (NSOM) utilizing an integrated QD-LED has been demonstrated.
The structure of QD - LEDs used for the electrical - excitation scheme is similar to basic design of OLEDs . A layer of quantum dots is sandwiched between layers of electron - transporting and hole - transporting materials . An applied electric field causes electrons and holes to move into the quantum dot layer and recombine forming an exciton that excites a QD . This scheme is commonly studied for quantum dot display . The tunability of emission wavelengths and narrow bandwidth is also beneficial as excitation sources for fluorescence imaging . Fluorescence near - field scanning optical microscopy ( NSOM ) utilizing an integrated QD - LED has been demonstrated .
What is one material used in electrical-excitation?
What is one material used in electrical - excitation ?
hole-transporting materials
hole-transporting materials