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

Influence of an InGaN superlattice pre-layer on the performance of semi-polar (11–22) green LEDs grown on silicon
Zhao X, Huang K, Bruckbauer J, Shen S, Zhu C, Fletcher P, Feng P, Cai Y, Bai J, Trager-Cowan C, Martin R W, Wang T
Scientific Reports Vol 10 (2020)
https://doi.org/10.1038/s41598-020-69609-4
Structural and luminescence imaging and characterisation of semiconductors in the scanning electron microscope
Trager-Cowan Carol, Alasmari Aeshah, Avis William, Bruckbauer Jochen, Edwards Paul R, Ferenczi Gergely, Hourahine Benjamin, Kotzai Almpes, Kraeusel Simon, Kusch Gunnar, Martin Robert W, McDermott Ryan, Gunasekar Naresh, Nouf-Allehiani M, Pascal Elena, Thomson David, Vespucci Stefano, Smith Matthew David, Parbrook Peter J, Enslin Johannes, Mehnke Frank, Kuhn Christian, Wernicke Tim, Kneissl Michael, Hagedorn Sylvia, Knauer Arne, Walde Sebastian, Weyers Markus, Coulon Pierre-Marie, Shields Philip, Bai J, Gong Y, Jiu Ling, Zhang Y, Smith Richard, Wang Tao, Winkelmann Aimo
Semiconductor Science and Technology Vol 35 (2020)
https://doi.org/10.1088/1361-6641/ab75a5
A poly(urethane)-encapsulated benzo[2,3-d:6,7-d']diimidazole organic down-converter for green hybrid LEDs
Wiles Alan A, Bruckbauer Jochen, Mohammed Nabeel, Cariello Michele, Cameron Joseph, Findlay Neil J, Taylor-Shaw Elaine, Wallis David J, Martin Robert W, Skabara Peter J, Cooke Graeme
Materials Chemistry Frontiers Vol 4, pp. 1006-1012 (2020)
https://doi.org/10.1039/C9QM00771G
Luminescence behavior of semipolar (10 11) InGaN/GaN "bow-tie" structures on patterned Si substrates
Bruckbauer Jochen, Trager-Cowan Carol, Hourahine Ben, Winkelmann Aimo, Vennéguès Philippe, Ipsen Anja, Yu Xiang, Zhao Xunming, Wallace Michael J, Edwards Paul R, Naresh-Kumar G, Hocker Matthias, Bauer Sebastian, Müller Raphael, Bai Jie, Thonke Klaus, Wang Tao, Martin Robert W
Journal of Applied Physics Vol 127 (2020)
https://doi.org/10.1063/1.5129049
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
Microscopy of defects in semiconductors
Massabuau Fabien C-P, Bruckbauer Jochen, Trager-Cowan Carol, Oliver Rachel A
Characaterisation and Control of Defects in Semiconductors (2019) (2019)
https://doi.org/10.1049/PBCS045E_ch8

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

2nd Workshop on Cathodoluminescence and Electron Beam Induced Current of Semiconductor Nanostructures
Invited speaker
3/2020
Lecture at "Kilmarnock Engineering and Science Society"
Speaker
3/12/2019
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

More professional activities