Dr Jochen Bruckbauer

Research Associate

Physics

Personal statement

I am a postdoctoral researcher in the Semiconductor Spectroscopy & Devices Group in the Department of Physics.

I gained my PhD from the University of Strathclyde in 2013. My PhD research was focused on the luminescence study of III-nitride semiconductor nanostructures and LEDs. I also have a Diplom (equivalent to a Master of Science) from the Technical University of Munich.

My current research focuses on the optical characterisation of III-nitride semiconductors, which are the building block for white LEDs replacing the currently used, highly inefficient light sources.

Publications

Scanning electron microscopy as a flexible tool for investigating the properties of UV-emitting nitride semiconductor thin films
Trager-Cowan C, Alasmari A, Avis W, Bruckbauer J, Edwards P R, Hourahine B, Kraeusel S, Kusch G, Johnston R, Naresh-Kumar G, Martin R W, Nouf-Allehiani M, Pascal E, Spasevski L, Thomson D, Vespucci S, Parbrook P J, Smith M D, Enslin J, Mehnke F, Kneissl M, Kuhn C, Wernicke T, Hagedorn S, Knauer A, Kueller V, Walde S, Weyers M, Coulon P-M, Shields P A, Zhang Y, Jiu L, Gong Yipin, Smith R M, Wang T, Winkelmann A
Photonics Research Vol 7, pp. B73-B82 (2019)
https://doi.org/10.1364/PRJ.7.000B73
Determining GaN nanowire polarity and its influence on light emission in the scanning electron microscope
Naresh-Kumar G, Bruckbauer J, Winkelmann A, Yu X, Hourahine B, Edwards P R, Wang T, Trager-Cowan C, Martin R W
Nano Letters Vol 19, pp. 3863-3870 (2019)
https://doi.org/10.1021/acs.nanolett.9b01054
Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes
Angioni Enrico, Marshall Ross J, Findlay Neil J, Bruckbauer Jochen, Breig Ben, Wallis David J, Martin Robert W, Forgan Ross S, Skabara Peter J
Journal of Materials Chemistry. C Vol 7, pp. 2394-2400 (2019)
https://doi.org/10.1039/C9TC00067D
Monolithic multiple colour emission from InGaN grown on patterned non-polar GaN
Gong Y, Jiu L, Bruckbauer J, Bai J, Martin RW, Wang T
Scientific Reports Vol 9 (2019)
https://doi.org/10.1038/s41598-018-37575-7
You do what in your microprobe?! The EPMA as a multimode platform for nitride semiconductor characterization
Edwards Paul R, Naresh-Kumar G, Kusch Gunnar, Bruckbauer Jochen, Spasevski Lucia, Brasser Catherine G, Wallace Michael J, Trager-Cowan Carol, Martin Robert W
Microscopy & Microanalysis 2018, pp. 2026-2027 (2018)
https://doi.org/10.1017/S1431927618010619
Cathodoluminescence studies of chevron features in semi-polar (11-22) InGaN/GaN multiple quantum well structures
Brasser C, Bruckbauer J, Gong YP, Jiu L, Bai J, Warzecha M, Edwards P R, Wang T, Martin R W
Journal of Applied Physics Vol 123 (2018)
https://doi.org/10.1063/1.5021883

more publications

Research interests

My research interests are focussed on the optical spectroscopy and electron microscopy of semiconductors, especially the III-nitride material system. This quaternary system consists of GaN, InN and GaN and its various alloys.

This material system has a wide range of applications, such as solid-state lighting, optoelectronic devices (light-emitting diodes and laser diodes), high-power and high-frequency electronics, water purification, solar cells or communication.

My main research focus lies on the investigation of nanostructures, such as nanorods, of these materials using high resolution cathodoluminescence (CL) hyperspectral imaging. I am also interested in combining the CL imaging technique with electron channelling contrast imaging, an electron diffraction method in the scanning electron microscope, to correlate the structural properties of dislocations with their optical properties. Furthermore, I am collaborating with colleagues from the Department of Pure and Applied Chemistry to develop a novel organic colour converter for a hybrid organic/inorganic white LED using GaN-based nanostructures.

Characterisation techniques include CL hyperspectral imaging, photoluminescence, electroluminescence, X-ray microanalysis and electron bean-induced current.

Professional activities

STEMFest 2019
Contributor
14/11/2019
13th International Conference on Nitride Semiconductors (ICNS-13)
Speaker
7/7/2019
UK Nitride Consortium Winter Meeting
Speaker
9/1/2019
1st China-UK Early Career Workshop on Wide Band Gap Semiconductor Materials and Devices
Invited speaker
16/6/2018
1st China-UK Early Career Workshop on Wide Band Gap Semiconductor Materials and Devices
Chair
15/6/2018
Ulm University
Visiting researcher
7/5/2018

more professional activities