Group Members



Members of the Functional Nitride Group

Dr Michelle Moram
Shelly's official Imperial College London profile can be found here.

Postdocs

 
 
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Based at: Imperial College London

Research Interests:

I gained a BSc in Chemistry from Cardiff University in 2008, and stayed on to undertake a PhD in Surface Science at the Cardiff Catalysis Institute on the theme of iron oxide model catalyst supports. After completing my PhD in early 2012 I commenced a post doctoral position looking into the nature of carbon supported gold catalysts using surface science techniques such as x-ray photoelectron spectroscopy and scanning probe microscopy. I joined the Functional Nitrides group in February 2014 and will be working on thin film growth using the new Electron Beam Epitaxy System.

Recent Publications:

A facile route to model catalysts: the synthesis of [email protected] core-shell nanoparticles on γ-Fe2O3 (0001); Nanoscale, 5, 2013, 9018. DOI: 10.1039/c3nr03047d

The effect of acid treatment on the surface chemistry and topography of graphite; Carbon, 61, 2013, 124. DOI: 10.1016/j.carbon.2013.04.076

Enhancing surface reactivity with a noble metal; Chem. Commun., 49, 2013, 8223. DOI: 10.1039/c3cc43567a

Formation of complex model oxide catalysts: Mo oxide supported on Fe3O4 (111); Faraday Discuss., 162, 2013, 201. DOI: 10.1039/c2fd20134h  
 
 
 
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Based at: University of Cambridge

Research Interests:

I am a Postdoctoral Research Assistant within the Functional Nitrides group, currently focusing on the growth of III-nitrides using plasma-assisted molecular beam epitaxy (PA-MBE); in particular the growth of scandium nitride and its alloys with GaN and AlN. Current challenges with existing III-nitride devices include the low internal quantum efficiencies of both green and UV emitting devices and the efficiency droop at high current densities. This has stimulated research into new nitride materials to improve device efficiency and functionality. Alloys such as ScGaN and ScAlN are showing promise in this regard: they are also stable at high growth temperatures (unlike InGaN).

Prior to this, my PhD research was carried out at the University of Nottingham on creating more efficient solar cell devices using InGaN. This eventually culminated with the growth of nanorods, creating defect free material which was then coalesced to give flat layers.  
 
 
 
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Based at: Imperial College London

Research Interests: Density functional theory, transition metal carbides and nitrides, skutterudites

I obtained my PhD in physics at Uppsala University in 2010 and has since then been a postdoc at the University of California in Davis and the Royal Institute of Technology (KTH) in Stockholm.

My research focus on the application and development of theoretical methods to describe and predict the properties of materials. Density functional theory (DFT) is used regularly in my work, but I am also interested in methods that go beyond DFT. I have worked with a number of different types of materials for various applications, for example: transition metal carbides and nitrides for the use as hard coatings materials and skutterudites for the use as thermoelectric energy converters.

For more information on the work that I have been involved in please visit here.
The website of my former group at Uppsala University can be found here.  
 
 
 
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Based at: Imperial College London

Research Interests: 2D metallic materials

Bin Zou joined the Department of Materials at Imperial College London in 2009 as a post-doctoral research associate in Thin Film Technology Laboratory, founded by Prof. Neil Alford and Dr. Peter Petrov. His research focuses on growing ultra-thin film layer-by-layer using ultra-high vacuum (UHV) pulsed laser deposition with RHEED. The preferable layer-by-layer growth mode offers a high degree of control over the thickness with sub-atomic thickness resolution and significantly improves the interface feature. He is interested in functional oxide materials with high dielectric constant and tunability which can be utilised for microwave frequency devices, such as tunable capacitors, resonators, actuators and sensors.  
 
 
 
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Based at: Imperial College London

Owing to its wide band gap, Gallium Nitride (GaN) is widely used as a short wavelength light emitting diode (LED). GaN is usually grown on sapphire substrates. The large lattice and thermal mismatches between the two materials lead to the formation of threading dislocations (TD) at the interface. Although, when compared to their III-V counterparts, GaN devices are quite resilient to high dislocation densities, their longevity and reliability depends on the effect these defects have on charge carriers as well as their type and density. It is widely known that dislocations lead to distorted bonding in the immediate vicinity, my projects aims to study the nature of these regions of extreme straining (dislocation cores) using high resolution transmission electron microscopy (HRTEM).
Sneha Rhode is currently funded by The Schlumberger Faculty for the Future foundation, which funds women scientists from the developing world to carry out research and teaching.  
 
 
 
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Based at: Imperial College London

Research Interests: Defects in semiconductors, new theoretical techniques, materials discovery

I joined Imperial as a PhD student in October 2011 following an MSci/BA in Natural Sciences at the University of Cambridge. I successfully completed my PhD in 2015 and afterwards continued my work with the Functional Nitrides Group at Imperial as an EPSRC Doctoral Prize Fellow. I've since been awarded a Lindemann Fellowship to pursue research in the United States in 2016, where I'm now based at Lawrence Berkeley National Lab working in Wladek Walukiewicz's Solar Energy Materials Research Group.

Recent Publications:

"Segregation of In to Dislocations in InGaN" Nano Letters 15 (2) 923-930 (2015)

"Structure and electronic properties of mixed (a + c) dislocation cores in GaN" Journal of Applied Physics 116 063710 (2014)

"Mg doping affects dislocation core structures in GaN" Physical Review Letters 111 (2) 923-930 (2015)

I maintain profiles on various websites, including Google Scholar and LinkedIn, but email is probably the best way to contact me. I also maintain this website on behalf of the group, so if there are any issues please let me know!  
 

PhDs

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Based at: Imperial College London

Research Interests:

Bio to come. Just joined!

 
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Based at: Imperial College London

Research Interests:

Bio to come. Just joined!

 
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Based at: Imperial College London

Research Interests:

Jon is a CDT student in the Advanced Characterisation of Materials, jointly supervised by Dr Michelle Moram at Imperial and Dr David Scanlon at UCL.

 
 
 
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Based at: Imperial College London

Research Interests: Nitride-based UV light emitters, thin film growth technology.

Before joining the Functional Nitrides Group, I served as an R&D engineer in Taiwan Semiconductor Manufacturing Company (TSMC), where I aimed to develop 3D IC technologies. My current PhD project focuses on thin film growth technologies for the growth of epitaxial wide-band-gap materials, which can be used in efficient UV light emitters. Outside of my research, I play table tennis for the Central London League. I also enjoy jogging, traveling, and tasting all sorts of international food.  
 
 
 
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Based at: Imperial College London

Research Interests: 2D metallic materials

Studying for PhD in 2D metallic materials and is passionate about materials characterization. I graduated with Master Degree from Universiti Malaysia Perlis (UniMAP) where I did research on composite materials and with Bachelor Degree in Metallurgy Engineering from the same university. I spend most of my time reading books and travelling.  
 
 
 
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Based at: Imperial College London

Research Interests: Efficient UV light emitters

Before joining Dr Michelle Moram’s group, I have studied materials science at the University of Stuttgart in Germany and researched about metal-induced crystallization of amorphous semiconductor thin films. During the work on my diploma thesis, I have developed a strong interest in advanced thin film technologies and surface characterization techniques. My current project includes the preparation and characterization of new wide-band gap semiconductors, which are promising candidates for efficient UV light emitters. Outside of materials science, I enjoy playing beach volleyball, tasting diverse food and ‘study and travel’.  
 
 
 
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Based at: Imperial College London

Research Interests: Group II-IV nitride, wide band gap materials for ultraviolet light emitter

Before joining the Functional Nitrides Group, I have studied Chemical and Materials Engineering at the University of Auckland in New Zealand and researched on crystallisation of lithium-disilicate glass-ceramics. At Imperial College London, my Master project is focus on characterisation of Group II-IV nitride materials by Raman spectroscopy and my future PhD project will be aimed at to develop and characterise a new family of functional wide band gap device materials, which show great promise for use in ultraviolet optoelectronic applications.  
 
 
 
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Based at: Imperial College London

Research Interests: New ternary nitride materials for wide band gap semiconductor applications

Joining the group in 2012, I focus my research on new ternary nitride materials for wide band gap semiconductor applications. I also hold a MEng in Materials Science & Engineering from Imperial College London. In my spare time I value invest in the vein of Klarman, Buffet and Graham and enjoy swinging a kettlebell or two. I also practise Buddhist meditation and assist several Buddhist organisations throughout London. I am fascinated by the interrelationship of subjective and objective methods of knowing.  
 
 
 
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Based at: Imperial College London

Research Interests: 2D functional nitride materials, electron microscopy, optoelectronic devices

Kevin joined the Functional Nitrides Group in 2012. His current research focuses on the interactions between 2D boron nitride and III-nitrides, a foundation for developing devices based on 2D materials. His investigations are carried out using high-resolution transmission electron microscopy (HRTEM), scanning transmission electron microscopy (STEM), electron energy loss spectroscopy (EELS), and spectroscopic ellipsometry.

He received a BSc in Electrical Engineering from Ecole Polytechnique Federale de Lausanne, and an MRes in Nanotechnology from Imperial College London. In 2013, he was awarded one of five international JDP scholarships to pursue a PhD in Applied Physics and Materials Science at Imperial College London and National University of Singapore, under the supervision of Dr Shelly Moram and Prof Andrivo Rusydi.

His private pursuits include fencing, skiing, chess, and the combination of Brandy Alexander and opera.

Presentations:

K. Kahn, C. McGilvery, A. Rusydi, M.A. Moram, Electronic Interactions of Hexagonal Boron Nitride with III-Nitride Semiconductors, International Workshop on Nitride Semiconductors (IWN), Wroclaw, Poland (August 2014)

K. Kahn, W.Y. Fu, M.A. Moram, Dislocation Behaviour in AlGaN-based UV Light emitters, Materials Research Society Spring Meeting (MRS), San Francisco, USA (April 2013)  
 
 
 
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Based at: Imperial College London

Research Interests:

Richard took his undergraduate degree at Imperial college and joined the Functional Nitrides group as a masters' student and has since continued as a PhD candidate. His interests lay in the technological advances that Materials Science permit and the management of these advances for global social and environmental progress.

His PhD is an extension of the initial work as a masters’ student: considering the application of UV emitters in drinking water treatment. The focus of this work has since developed into the development of mathematical modelling methods to accurately simulate the distribution of UV light within water treatment reactors.

Outside of his research Richard leads an active lifestyle and enjoys cycling, rugby, rock climbing, hiking, snow-boarding and travelling in general. Richard is passionate about raising awareness and increasing public involvement in science and engineering (particularly Materials Science), and takes part in events of this nature whenever possible.  
 
 
 
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Based at: Imperial College London

Research Interests: Sc-based nitrides, Piezoelectrics

Before joining Moram's group in Oct 2012, I studied Materials Engineering at City University of Hong Kong and a MRes in Nanomaterials at Imperial College London. I am currently looking at the piezoelectric properties of nitrides. When I am free, I enjoy jogging, playing music and watching detective/science fiction drama series. I am also interested in things related to Christianity and a regular church member.  
 
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Based at: University of Cambridge



 

Past Members



Harpal Khing (Masters, 2013-2014)

William Stocker (Masters, 2013-2014)

Dr Stephan Knoll (PhD)

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