MBE Laboratory

Institute of High Pressure Physics PAS


About us

MBE research group is a part of the Institute of High Pressure Physics Polish Academy of Sciences (IHPP PAS) "Unipress".

We focus on the development of blue and green light-emitting diodes (LEDs) and laser diodes (LDs) using plasma-assisted molecular beam epitaxy (PAMBE). We carry out the research on long-wavelength light emitters: implement improvements in structure design and optimize optical and electrical parameters of gallium nitride (GaN) based devices. We investigate crystal growth mechanisms on GaN surfaces of various polarity and crystallographic orientation. We fabricate and study nitride heterostructures with tunnel junction. We also study vertical heterojunction transistors n-p-n (GaN/InGaN/GaN) fabricated on GaN substrates using MBE.


Highlights

Bidirectional LEDs live on Polskie Radio Trójka

January 4, 2024 live on Polskie Radio Trójka Mikołaj Żak from our Institute (MBE Laboratory) presented a new look at LEDs that can operate efficiently with alternating current power . It was a commentary on a recently published work in Nature Communications, which is reported by the website [Naukawpolsce.pl](https://naukawpolsce.pl/aktualnosci/ news%2C99998%2CPolish-idea-for-bidirectional-LEDs-without-power-acdc.html). We invite you to visit the portal website.

Fig. Visualization of the operation of a bidirectional diode. Author: Mateusz Hajdel (IWC PAN), co-author of the article.

Focus.pl also writes about bidirectional diodes developed by Mikołaj Żak

News archive

Lately we published:
  1. Bidirectional light-emitting diode as a visible light source driven by alternating current M. Żak, G. Muziol, M. Siekacz, A. Bercha, M. Hajdel, K. Nowakowski-Szkudlarek, A. Lachowski, M. Chlipała, P. Wolny, H. Turski, C. Skierbiszewski Published, Nat Commun 14, 7562 (2023) , doi.org/10.1038/s41467-023-43335-7



Full list of our publications HERE


Our team

prof dr hab. Czesław
Skierbiszewski

dr inż. Grzegorz
Muzioł
dr hab. Henryk
Turski
dr inż. Marcin
Siekacz
dr inż. Marta
Sawicka
mgr Anna
Feduniewicz-Żmuda
mgr inż. Krzesimir
Nowakowski-Szkudlarek
mgr inż. Paweł
Wolny
mgr inż. Mateusz
Hajdel
mgr inż. Mikołaj
Żak
mgr inż. Julia
Sławińska
mgr inż. Natalia
Fiuczek
mgr inż. Mikołaj
Chlipała
mgr inż. Oliwia
Bilska
mgr inż. Krzysztof
Gołyga
Shyam
Bharadwaj


Projects

Current list of our projects:

1. TeamTech

„Tunnel junction and its applications for GaN based optoelectronics”

2. OPUS - NbN

"Monolithic integration of superconductors and semiconductors on nitride platform”

3. SONATA - wide QW

"Circumvention of piezoelectric fields in III-nitride heterostructures – a way towards solving the green gap problem"

4. SONATA - porous GaN

"Nanoporous GaN – a new platform for realization of quantum structures"

5. PRELUDIUM - LD

"Influence of build-in piezoelectric fields on performance of nitride laser diodes"

6. PRELUDIUM - HBT

"Monolithic bipolar junction transistor driving LED in group III nitrides material system"

7. BANANO

"'Buried periodic Arrays of NANOchannels for single-frequency nitride lasers"

8. SONATA - N-side

"Seizing the advantages of Nitrogen-polar GaN for III-nitride light emitters"


List of completed projects HERE


Gallery

Video (only Polish language version) recorded in 2014 - “Patent na Patent”:

From this short video you can learn about Grzegorz Muzioł PhD thesis (4:10). He explains the role of InGaN laser diode waveguide design on the optical mode leakage to GaN substrate (5:08). You can hear Prof. Czesław Skierbiszewski tellinng about the properties and applications of gallium nitride (3:25), and Prof. Piotr Perlin (TopGaN CTO) stressing the importance of innovative research for polish hi-tech business (8:34).


Contact

Address

Headquarter:
Institute of High Pressure Physics
Polish Academy of Sciences "UNIPRESS"
Sokołowska 29/37
01-142 Warsaw

MBE LAB location:
al. Prymasa Tysiąclecia 98
01-424 Warsaw

public transportation:
PKP Koło - tram stop
Obozowa - bus stop

Phones:

+48 22 8760351 - office
+48 22 8760324 - lab

E-mail:

czeslaw@unipress.waw.pl