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Organic materials have long been considered as insulators due to their poor optoelectronic properties. Until very recently, they have been mostly utilized in non-electronic applications such as packaging, textile, and manufacturing due to their advantageous mechanical and physical properties over metals and ceramics. Today, It is almost impossible to find an aspect of our lives that is not affected by organics. The idea of using organic materials in microelectronics was first demonstrated by three Nobel laurates (2000-Nobel Prize in Chemistry), Hideki Shirakawa, Alan J. Heeger, and Alan G MacDiarmid, in the mid 1970s. The discovery was based on a simple experiment of doping polyacetylene with iodine, which resulted in a tremendeous increase in electrical conductivity (108-fold), making it close to those of metals. Following these initial experiments, functional organic materials have attracted significant attention over the last three decades as electro-active materials for the development of printable and flexible electronic devices such as organic thin-film transistors (OTFTs), light-emitting diodes (OLEDs), light-emitting transistors (OLETs), and photovoltaic cells (OPVs). Owing to their unique features over traditional inorganic materials, they are envisioned as essential components for several next-generation optoelectronic applications including low-power flexible displays/electronic papers, wearable electronics, printable RFID tags/sensors, and flexible solar panels.

Our research is focused on the theoretical design and synthetic development of new organic molecular and polymeric π-conjugated materials for next-generation optoelectronic devices. In particular, we are interested in molecular/polymeric semiconductors, photocurable dielectrics, surface modifiers, donor/acceptor polymers and emissive host/guest systems. Assoc. Prof. Hakan Usta has over 10 years of academic and industrial research experience in organic electronics, and his group aims to develop state-of-the-art functional materials for various organic optoelectronic applications. The ongoing projects in his group are as follows:
  • Boron-Containing Molecular and Polymeric Semiconductors
  • Emissive and Host Materials for High Performance OLEDs
  • Design and Synthesis of Electron-Carrying Organic Materials for Optoelectronic Applications
  • SERS-Active Organic Nano-/Micro-structured Thin-Flms
  • Self-Assembled Peptide-Based Semiconductor Supramolecular Systems

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