Aram Amassian
Solar and Photovoltaic Engineering Research Center
King Abdullah University of Science and Technology

Printed Organic Semiconductors for Electronics and Photovoltaics

Location: BTEC Room 135

Monday, February 22nd 2016 - 11:00 am

Conjugated organic molecules are the basic building blocks of organic semiconductors which have attracted a great deal of attention in recent years for applications ranging from light emitting diodes to transistors, sensors, photodetectors and solar cells. A key appeal of organic semiconductors is their compatibility with solution-based printing methods which can enable the high throughput and potentially low-cost manufacturing of these semiconductors on large area substrates as well as other form factors. To date, printing of high performance organic semiconductors from a starting ink has relied heavily on brute force optimization. Consequently, our understanding of the process-structure-property relationship in organic electronics is qualitative at best and hinders these materials from achieving their full potential.

In this presentation, I will discuss how we have been addressing these challenges by introducing new experimental methodologies in the investigation of the ink-to-solid transformation of small molecule and polymer semiconductors. Along the way, we have gained a more comprehensive understanding of printing and occasionally stumbled upon exciting new science with potential impact for printed electronics.

Aram Amassian is the SABIC Presidential Chair and associate professor of Materials Science and Engineering at the King Abdullah University of Science and Technology (KAUST) in Saudi Arabia. Aram's research focuses on solution-processing of semiconductor inks - ranging from conjugated molecules and polymers, to colloidal quantum dots, hybrid organic-inorganic perovskites, metal oxides and pseudohalides - for emerging electronic and photovoltaic applications. Aram has sought to establish a quantitative structure-property-performance relationship for semiconducting inks by emphasizing the roles of formulation and processing on phase transformation from solution to solid-state thin films. These lessons are subsequently applied to electronic, optoelectronic and photovoltaic devices. Aram obtained his PhD in Engineering Physics from Ecole Polytechnique de Montreal (Canada) in 2006, and was subsequently a postdoctoral fellow at Cornell University. He was awarded the NSERC (Canada) Postdoctoral Fellowship, as well as the American Vacuum Society's Electronic Materials Postdoctoral Award for his early work in the area of organic electronics and holds the SABIC Chair for his work on solution-processed optoelectronics. He is the author of more than 100 publications.

North Carolina State University