Chemistry Seminar - Smart interface materials for organic electronics application

Title: Smart interface materials for organic electronics application

Speaker: Prof. Beata Luszczynska, Lodz University of Technology

Abstract: Efficient optoelectronic devices are multilayers structures, which are usually fabricated by means of vacuum deposition methods. Adapting low-cost printing technology to produce photovoltaics (OPVs), light-emitting diodes (OLEDs) and photodiodes (PDs) requires a different approach to device structure, which should be as simple as possible. Quite a new concept for the cathode interlayer is the material of bifunctional nature. Such materials consist of an organic part compatible with the organic active layer, and a highly polar part preferentially interacting with the inorganic electrode, together acting as a compatibilizer between inorganic/organic layers of the device. The effect of such modification will be presented through the improved OPVs and PDs work parameters. In the case of OLEDs patterning the emission area is an important step in the process of OLED fabrication. Most often, the emission zone is determined by the overlapping region of the bottom and the top electrodes. Among many functional layers, an electron injection layer is one that plays a vital role in injection electrons from the cathode into the emissive or electron transport layers. The patterning of the emission region can be achieved through a specially selected interlayer, as will be demonstrated by the example of a simple organic light-emitting diode structure. 

Biography: Professor Beata Luszczynska is head of Department of Molecular Physics at Lodz University of Technology (TUL) in Poland. She is working in organic electronics with a multidisciplinary education, holding a PhD in chemistry and a postdoctoral degree in physics (habilitation).  After a doctoral study at TUL, she joined Commissariat à l'Energie Atomique et aux energies alternatives, Grenoble, France to work on application of nanoparticles in PDs. She has made significant contributions to various key issues in the field of organic electronics, resulting in 3 patent applications and 52 articles published in international peer-reviewed journals.