[22p-D903-1~12] 12.4 Organic light-emitting devices and organic transistors

2:00 PM - 2:30 PM JST(5:00 AM - 5:30 AM UTC)

[22p-D903-1] [The 21st Molecular Electronics and Bioelectronics Division Paper Award Speech] Upconversion Emission Using Interfacial Charge Transfer State

〇Seiichiro Izawa^1,2 (1.Tokyo Tech, 2.JST PRESTO)

Keywords:

Organic semiconductor,Upconversion emission,Organic light-emitting diode

We have realized photon upconversion and OLED with extremely low driving voltage by using using a CT state as energy transfer precursors to generate triplet excited states of emitting materials. These optical functions were realized because of the unique properties of the CT state, namely weakly bound by Coulomb attraction and existing at a D/A interface that is two-dimensional planar field.