Zajednički odjel za elektroničke elemente / poluvodičke integrirane sklopove (ED15/SSC37) Hrvatske sekcije IEEE poziva Vas na predavanje
Detection and investigation of localized states in new electron transporting heterocyclic polymers and oligomers suitable for optoelectronic devices
koje će održati dr. sc. Marius Prelipceanu, istraživač na Stefan cel Mare University of Suceava (Rumunjska). Dr. Prelipceanu gostuje na Fakultetu elektrotehnike i računarstva (FER) unutar Erasmus programa. Predavanje će se održati u utorak 7. prosinca 2021. s početkom u 11:00 sati na FER-u, u Seminaru Zavoda za elektroniku, mikroelektroniku, računalne i inteligentne sustave (soba D305).
Predviđeno trajanje predavanje s raspravom je 45 minuta. Predavanje je otvoreno za sve zainteresirane, a posebno pozivamo studente. Više o predavaču i predavanju možete pročitati u opširnijem sadržaju obavijesti.
Thermally stimulated processes have been studied in thin films of phenanthroline derives to describe the states that had been localized. Ultraviolet Photoelectron Spectroscopy had checked out before thin films of new pyrrolo[1,2-a][1,10] phenanthroline derivatives, in order to further applications in optoelectronic devices. The investigated compounds have an electronic band structure which is due to the substituent (R=NO2, Cl) induced transformations of molecular orbitals. Thermally stimulated discharge currents (TSDC) attested dipolar and charge transport mechanisms. Each TSDC peak has been assigned to elementary processes that are different utilizing dielectric spectroscopy (DES), and the mean trap depths have been approximated from thermally stimulated luminescence (TSL) curves.
Marius PRELIPCEANU, PhD – Post-doctoral researcher - received his Ph.D. in Electronics and Telecommunications from the Stefan cel Mare University of Suceava (Romania) in 2014 and his M.S. in Organic Semiconductors Thin Films (2004) from Al. I. Cuza University of Iasi (Romania) and Potsdam University (Germany) and B.Sc. in Physics Engineering (2002) from Al. I. Cuza University of Iasi (Romania). The studies reported may be summarized as follows: the construction and investigation of optoelectronic devices, tailored with a new series of organic materials, by means of electrical, optical and morphology characterization, as well as theoretical modeling. It was also studied how electrical traps influence the device efficiency. The results of these studies are relevant for devices such as conjugated polymer-based light emitting diodes, field effect transistors and photovoltaic devices. The device properties of diodes based on organic compounds are extremely sensitive to the environmental conditions, in particular to the presence of oxygen. It introduced a new method of fabrication and characterization of encapsulated OLED devices. He is the first author of more than 20 publications.