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Professor Coehoorn come to ChinaRay

Professor Coehoorn is a member of the royal Dutch academy of sciences and chief scientist of Philips Research Institute, Netherlands, specializes in organic optoelectronics and it’s applications. In particular, he has more than 20 years of innovation and experience in organic light-emitting materials and photoelectric device physics. As the academic master of "green optoelectronics international joint research center", south China normal university national science and technology cooperation base, Professor Coehoorn provides guidance for r&d and technology transformation in the fields of reflective display, luminescent display and printing display.


Professor Coehoorn discussed how to solve the problems of transmission materials and the direction of OLED simulation in printing.


Professor Coehoorn systematic study the efficiency, lifetime and practical physical process in OLED devices. Mechanistic Organic Light Emitting Diode (OLED) device modeling using kinetic Monte Carlo (KMC) simulations provides a true molecular-scale and nanosecond-resolved view of the relevant physical processes occurring in OLEDs, including the actual spatial non-uniformity of the current density and radiative decay, a decomposition of the efficiency loss in terms of fundamental loss processes such as exciton-polaron quenching and exciton-exciton annihilation, and a prediction of the device lifetime from simulations including molecular degradation. KMC simulations can be used to successfully analyze and predictively model the internal quantum efficiency (IQE) of phosphorescent and TADF-based OLEDs and its roll-off at large current densities.

Researchers actively participated in the discussion, and Professor Reinder answered questions raised by everyone.