Prof. Dr. Ferda Hacıvelioğlu

Title: Single Component Solutions of Conducting Polymers for Optoelectronic Device Applications

Abstract: Optoelectronic devices (OEDs) are electrical-to-optical or optical-to-electrical converter systems which must contain at least one transparent electrode to the target wavelength of the light. These devices are usually built by deposition of different layers, which have different electrical and/or optical properties. Electrically conductive polymers (CPs) are one of the key materials for optoelectronic devices such as touch panels, electrochromic devices, light emitting diodes, light sensors and solar cells associated with their unique properties such as transparency, tuneable electrical conductivity, high mechanical strength and flexibility. Poly(3,4-ethylenedioxythiophene)-Polystyrene sulfonic acid, i.e. PEDOT-PSS is the most famous one of these type polymeric materials that is used for optoelectronic device applications. Different types or grades of PEDOT-PSS have been used as different layer of OEDs such as transparent conducting electrode, active or interfacial layers. The interactions between the PEDOT and PSS does not consist of covalent bonding, meaning that the PEDOT-PSS water dispersions have at least two or more components. However, a robust highly efficient and reliable OED requires each component or layer with very well-known properties. It is therefore very important to develop single component solutions of conjugated materials for OED applications.  In this lecture we are going to focus our attention to new developments on the production of single component solution processable conducting conjugated materials.

Biography: Prof. Dr. Ferda Hacıvelioğlu was born in Giresun in 1976. He obtained undergraduate degree on Chemistry from 19 May University, Samsun, Turkey in 1999 and then MSc and PhD degrees from Gebze Institute of Technology, Turkey working with Professor Adem KILIC on the synthetic chemistry of cyclophosphazenes. In 2009 he is awarded by both TUBITAK and the Turkish Higher Education Council to conduct research at the University of Southampton with Professor Simon COLES at the National Crystallography Centre. He became Assistant Professor in 2010 and then Associated Professor in 2014 at Gebze Technical University (formerly known as Gebze Institute of Technology) and started to perform research on polymers, especially polyphosphazenes. His current research focuses on both electrically and ionically conducting polymers including polyelectrolytes for fuel cells, polymer battery electrolytes, conjugated materials and their combination with polymeric dopants for solution processing. In 2018 he is awarded by Royal Society Newton Advanced Fellowships program and extended his research to optoelectronic device fabrication by collaborating with University of Glasgow, Energy Storage and Conversion Division.