Björn Lüssem

Björn Lussem (blussem(at)kent.edu) is an Associate Professor of Physics at Kent State University. Before joining Kent State in 2014, he was a project leader at Materials Science Laboratory of Sony in Stuttgart (2006-2008) and group leader at the Institut für Angewandte Photophysik (IAPP), TU Dresden (2008-2013).
Lüssem authored more than 100 publications in international journals (h-index > 35). His research interests range from new design principles of organic devices, to charge transport in organic semiconductors and novel organic semiconductors with improved performance.  His work has been awarded the VDE-Promotionspreis and the Günther-Leibfried-Preis.
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Vikash Kaphle

Vikash Kaphle (vkaphle(at)kent.edu), born in Nepal, completed his B.Sc. (Bachelor of Science) and M.Sc. (Master of Science) in Physics from Tribhuvan University, Nepal.  After completing MS, he joined Kent State University on Fall 2013 to pursue a Ph.D. in Physics. He is currently working on Organic Electrochemical Transistors and their applications.

Drona Dahal

Drona Dahal (ddahal2(at)kent.edu) received his B.Sc. ( Bachelors of Science) and M. Sc. ( Masters of Science) from Tribhuvan University (TU), Nepal. After few years of Physics teaching in Nepal, he moved to University of Missouri- Kansas City, where he worked in the field of Laser Ablation and obtained MS degree there. He joined Kent State University in Fall 2016 to pursue a Ph. D. in Physics. His research interest includes Organic Semiconductor devices, Vertical Organic Field Effect Transistors, Organic Light Emitting Diodes (OLEDs) and display systems. 

Raj Kishen Radha Krishnan

Raj Kishen Radha Krishnan (rradhakr(at)kent.edu) is a Ph.D. student of physics department at Kent State University. He received his Integrated Master's degree in Physics from the Indian Institute of Technology, Kanpur. He joined Björn’s group in 2018. His research interests  include physics of organic semiconductors and organic semiconductor devices, specifically doping in organic transistors.

Pushpa Raj Paudel

Pushpa Raj Paudel (ppaudel1(at)kent.edu), from Pokhara (Nepal), joined Kent State University (KSU) as doctoral student of Physics in Fall 2017. He received both Bachelor (B.Sc.) and Master (M.Sc.) degrees in Physics from Tribhuvan University (TU), Nepal. He is associated with Lussem-lab since Spring 2019. He is currently working on organic electrochemical transistors.

Former Group Members

Changmin Keum

Dr. Chang-Min Keum (dlog2k(at)gmail.com) received his Ph.D. degree in electrical engineering from the Seoul National University (South Korea) in 2014 under the guidance of Prof. Sin-Doo Lee. During doctoral studies, his research topics were mainly on interface phenomena, device physics, and architecture of organic electronic devices such as organic field-effect transistors and vertical organic light-emitting transistors. Since he joined the Lüssem group as a postdoctoral research associate in 2015, he has been working on enhancement of the light outcoupling efficiency in organic light-emitting diodes and development of  vertical organic light-emitting transistors.
​Chang-Min is currently at Samsung Research.

Akram Al-Shadeedi

Akram Al-shaddedi (aalshade(at)kent.edu) is a Ph.D. student of physics department at Kent State University. He received the B.S degree from University of Baghdad and the PhD degree from Kent State University. He joined Björn’s group in 2014. His research interests are in physics of organic semiconductors and organic semiconductor devices, e.g. Organic Field-Effect Transistor (OFETs), Vertical Organic Transistors, and Organic Diodes.
Akram graduated in 2017 and is now teaching at the Physics Department of the University of Baghdad.

Shiyi Liu

Shiyi Liu (sliu20(at)kent.edu) is a Ph.D. student of Physics at Kent State University. Before joining Björn’s group in 2014, he worked on polymer stabilized liquid crystals, which involves optical application and material science. His research interests lies in novel organic semiconductor devices, Doped Organic Field-Effect Transistors (OFETs), Vertical Organic Transistors and Organic Light-Emitting Diodes (OLEDs). Shiyi recently joined Apple and moved to California. 

Kashi Subedi

Kashi N. Subedi (ksubedi(at)kent.edu), born in Pathari (Nepal), obtained his B.Sc and M.Sc in Physics from the Central Department of Physics of the Tribhuvan University, Kirtipur, Kathmandu. He enrolled at Kent State in Fall 2015 and joined the Lüssem Lab in Summer 2016. His research interests include Organic Semiconductors in general and Organic Permeable Base Transistors. Kashi is currently at Ohio University and pursues his graduate studies.