[OLEDp2] OLED/QDT poster

[OLEDp2-7L] Mechanisms of operation in quantum-dot light-emitting diodes

*Shoichi sano¹, Takashi Nagase^1,2, Takashi Kobayashi^1,2, Hiroyoshi Naito^1,2 (1. Osaka prefecture university (Japan), 2. The Research Institute for Molecular Electronic Devices (RIMED), Osaka Prefecture University (Japan))

Keywords:Quantum dots, Quantum-dot light-emitting diodes (QLED)

Mechanisms of operation in quantum-dot light-emitting diodes (QLEDs) have been investigated theoretically and experimentally. Important factors governing the current efficiency of QLED were examined using a machine learning approach. High hole injection barrier to QD is the dominant efficiency limiting factor, and the machine learning result was confirmed experimentally. A mechanism of high current efficiency even in the presence of high hole injection was discussed in terms of device simulation