Institute of High Pressure Physics

Dear Ladies and Gentlemen,

We are pleased to invite you to the IHPP PAS Seminar on Nitride Semiconductors. The next presentation will be held in a hybrid mode – at the New Technologies seminar room, Al. Prymasa Tysiąclecia 98, and through Zoom platform (to get the link, please contact us at nitride_seminar@mail.unipress.waw.pl ).

The next seminar is scheduled on Monday 07.08.2023 at 14:00.

We will have a unique chance to hear two talks (in the standard time frame):

Speaker 1: Kansuke Hamasaki (Nagoya University, Amano Laboratory)

Title: High electron density of Sn-doped GaN layer by HVPE

Title: Investigation of Mg activation of ion-implanted GaN by using Ultra-High-Pressure Annealing

Sincerely,

Tadeusz Suski
Piotr Perlin
Anna Kafar

Nanoporous GaN has recently emerged as a potential alternative material for AlGaN in the cladding layers of nitride laser diodes (LDs) due to its high refractive index contrast to GaN, tunable with porosity.

In the next Thursday UNIPRESS seminar, dr inż. Marta Sawicka from our Institute, MBE Laboratory, will present the electrically pumped LDs with porous claddings and compare device characteristics with standard solutions. She will also present a novel concept of in-plane refractive index engineering involving selective area doping and material removal in the proces of electrochemical etching, that is proposed to fabricate photonic elements embedded inside the nitride structures.

The Seminar "Application of nanoporous GaN in nitride laser diodes” will be held on Thursday, July 27, 2023 at 15:00 on Zoom platform. To get the link to join the seminar, please contact us at dyrekcja@unipress.waw.pl

Dear Ladies and Gentlemen,

We are pleased to invite you to the IHPP PAS Seminar on Nitride Semiconductors. The next presentation will be held in a hybrid mode – at the New Technologies seminar room, Al. Prymasa Tysiąclecia 98, and through Zoom platform (to get the link, please contact us at nitride_seminar@mail.unipress.waw.pl ).

The next seminar is scheduled on Monday 03.07.2023 at 14:00.

Speaker: Dr. Wolfram Miller (Leibniz-Institut für Kristallzüchtung IKZ)

Title: Numerical Simulations in Bulk Crystal and Layer Growth

Abstract: (link)

Sincerely,

Tadeusz Suski
Piotr Perlin
Anna Kafar

Development of societies and the world economy requires novel sources of cheap and clean energy. The Earth natural resources will suffice for 50-60 years and their use is burdened with leaving a significant carbon footprint.

In the next Thursday UNIPRESS seminar, dr inż. Andrzej Morawski from our Institute, head of the Superconductors Laboratory, will address the issue of energy storage focusing on "green" energy obtained from hydrogen. He will present a new construction developed by his team - a double-walled high-pressure hydrogen tank. The solution provides high density of stored energy and can find its application for mobile vehicles or backyard hydrogen storage systems. The hydrogen stored under pressure has a much lower unit price than liquid hydrogen, but its density is only slightly lower.

The Seminar “Hydrogen storage technologies at Unipress. Project summary and outlook” will be held on Thursday, June 29, 2023 at 15:00 on Zoom platform. To get the link to join the seminar, please contact us at dyrekcja@unipress.waw.pl