Our research is in the area of experimenal solid-state Physics, materials and polymer physics. Specifically, we are interested in electrically-active polymeric and molecular materials. In our laboratory, we synthesize and test a variety of semiconductor devices, such as organic light emitting diode, photovoltaic and spin-valve devices.





Typical organic light-emitting diodes fabrication procedures. a) Glass coated ITO. b) ITO was etched photolithography and cleaned by ultrasonic baths and Oxygen plasma. c) A conductive layer PEDOT:PSS was spin coated on ITO strips. d) Functional organic layer was deposited either by spin coat or thermal evaporation. e) Metal deposition as cathode.





(a) Typical device stricture of organic light-emitting diodes. (b) Schematic relevant processes of charge injection (1), charge carrier transport under applied voltage (2) and exciton formation followed by radiative relaxation (3).




Thermally Activated Delayed Fluorescence Device

(a) and (b) Temperature dependence of magnetic-field-effects in optimally conditioned device. (c) and (d) Arrhenius plot of the saturation magnetic field effect extracted from the data in (a) and (b), respectively. (e) Dependence of the saturation magnetoconductance and 

magnetoluminescence versus the thickness of the co-evaporated layer, whereas (f) plots the same quantities versus the composition of the co-evaporated layer.



(a) Schematic of the device structure used for fringe-field MC and MEL measurements.

(b) MC and MEL responses to an external magnetic field

(c) IV and EL versus voltage (d) MC and MEL responses of the complete organic fringe-field device.

(e) Magnetization M relative to the saturation magnitization of the ferromagnetic film as
obtained by MOKE.