Seminars
Spotlight talk - dr. Hermann Kahle
The Warsaw Doctoral School in Natural and Biomedical Sciences and the Institute of High Pressure Physics PAS cordially invites you to a SPOTLIGHT TALK "Membrane external-cavity surface-emitting lasers (MECSELs): State of the art and a glimpse into the future" given by Dr. Hermann Kahle from University of New Mexico, Albuquerque, United States When and where: Tuesday, August 20, 2024, 15:30 (duration: 60 min + more) at the IHPP PAS al. Prymasa Tysiąclecia 98, seminar room 2nd floor and online via Zoom. Abstract and the link to Zoom meeting are available in this file.
Unipress Doctoral Seminar
Selective area doping is used in semiconductors to locally change their electrical properties. After implantation, thermal treatment is required to activate dopant atoms and remove post-implantation damage in the crystallographic structure. Annealing process of GaN is challenging due to unwanted material thermal decomposition above 800°C. In the Unipress Doctoral Seminar, Kacper Sierakowski, MSc from Crystal Growth Laboratory, Institute of High Pressure Physics will present the talk „Diffusion of acceptors in ion implanted gallium nitride grown by halide vapor phase epitaxy”. The presentation will summarize the main results of his PhD thesis. He will discuss the application of ultra-high-pressure annealing (UHPA) for efficient electrical activation of ion implanted GaN and remarkable structural recovery. A strong dependence of diffusion on the crystallographic orientation and impurities composition was observed for all analyzed acceptor dopants. Join us online via Zoom platform on Thursday, August 22, 2024 at 3:00 p.m. To get the link to Zoom meeting, please contact us at dyrekcja@unipress.waw.pl Abstract of the talk is here.
Spotlight talk - prof. Paolo Mele
The Warsaw Doctoral School in Natural and Biomedical Sciences and the Institute of High Pressure Physics PAS cordially invites you to a SPOTLIGHT TALK "Thin films of energy materials with enhanced performance: the role of artificial nanodefects" given by Prof. Paolo Mele from Shibaura Institute of Technology (SIT), Tokyo Japan When and where: Thursday, June 27, 2024, 11:30 (duration: 60 min + more) at the IHPP PAS al. Prymasa Tysiąclecia 98, seminar room 2nd floor and online via Zoom. Abstract and the link to Zoom meeting are available in this file.
Unipress Thursday Seminar
Would you like to know what is needed to grow InGaN at higher temperatures in MBE not loosing on the indium content? And how these new growth conditions impact InGaN optical quality? What are the advantages of the MBE technology in the growth of III-nitride heterostructures? And how to benefit from them for the fabrication of such devices as light emitting devices operating in both forward and reverse bias, distributed feedback laser diodes with high spectral purity, or stacks of laser diodes for high power operation, just to name a few. These subjects will be covered during the next Unipress Thursday Seminar by dr inż. Grzegorz Muzioł from MBE Laboratory, Institute of High Pressure Physics in the talk „Growth of InGaN by MBE: current status, opportunities and challenges” Join us online via Zoom platform on Thursday, June 27, 2024 at 3:00 pm. To get the link to Zoom meeting, please contact us at dyrekcja@unipress.waw.pl Abstract of the talk is here.
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