W pracy obliczono numerycznie charakterystyki polowe wydajności fotogeneracji nośników ładunku na gruncie różnych wesrsji modeli Onsagera i Noolandiego-Honga. Wyznaczone krzywe teoretyczne porównano z wynikami doświadczalnymi uzyskanymi metodą elektromodulacji (foto)luminescencji (EML) dla próżniowo naparowanych warstw organicznych kompleksów Alq3 i Ir(ppy)3.

The Sano-Tachiya-Noolandi-Hong (STNH), Onsager, and Braun models as well as Monte Carlo (MC) simulations of charge recombination/separation have been applied for the first time to reproduce the results of the electromodulated photoluminescence measurements in vacuum-evaporated films of fluorescent materials commonly used in optoelectronic devices. The values of the electron-hole pair final recombination speed in the monomer emitters:...

Photoconduction and magnetic field effect on photoconduction have been investigated as a function of electric field strength, excitation light intensity and wavelength in vacuum evaporated films of m-MTDATA (4,4′,4″-tris(N-(3-methylphenyl)-N-phenylylamino) triphenylamine), the starburst amine commonly used as hole-transporting material in organic light-emitting diodes. The photocurrent is found to be generated by the singlet exciton...

Geminate electron–hole recombination in systems with exponential energetic disorder is studied by Monte Carlo method. The field and temperature dependencies of geminate-pair dissociation probability are calculated. It is established that the dissociation yield of carrier pairs depends mainly on the extent of carrier thermalization, which influences the Einstein relationship. The approximate limiting temperature is given by Te =...

Elektromodulacja fluorescencji w warstwach dendrymerów aminowych m-MTDATA i 1-TNATA jest wywołana elektrycznopolową dysocjacją ekscytonów singletowych. Mechanizm generacji nośników ładunku z ekscytonów singletowych można dobrze opisać stosując formalizm trójwymiarowego modelu Onsagera.