Lecture Topic:

Role of electron-phonon coupling in functional nanomaterials : carrier mobility, thermoelectric conversion, and light-emitting

Lecturer:

Shuai Zhigang

Time:

November 14, 2019 (Thursday) 14:00-15:00

Place:

Lecture Hall, North Campus, Liangxiang Campus

Organizer:

Graduate School, School of Chemistry and Chemical Engineering

Registration method:

Log-in to WeChat enterprise of Beijing Institute of Technology— 第二课堂（The Second Lecture）— Choose No.277 in the Lecture Registration

【Lecture Information】

Most of the optoelectronic functions of nanomaterials are determined by electron/exciton phonon coupling, including the carrier mobility, thermoelectric conversion and light-emitting efficiency and optical spectroscopy. Since the time scales of these processes range from nanosecond to milisecond, far beyond the current electron dynamics computational approach, we developed rate formalism taking into account the electron-phonon coupling into accounts. The carrier mobility for 2-d materials, conjugated polymers, and organic seconductors have been calculated with some successes. We proposed a two-band transport model for thermoelectric polymer. And based on the thermal vibration correlation function method in the time-dependent formalism, we can evaluate the radiative and non-radiative decay rates for OLEDs materials. The exotic Aggregation Induced Emission (AIE) and organic Room Temperature Phosphorescence (RTP) are explained through quantum chemical calculation coupled with the rate formalism.