skip to content
Study at Cambridge
About the University
Research at Cambridge
Search site
Home
Study at Cambridge
Undergraduate
Undergraduate courses
Applying
Events and open days
Fees and finance
Postgraduate
Postgraduate courses
How to apply
Postgraduate events
Fees and funding
International students
Continuing education
Executive and professional education
Courses in education
About the University
How the University and Colleges work
Term dates and calendars
History
Map
Visiting the University
Annual reports
Equality and diversity
News
A global university
Events
Public engagement
Jobs
Give to Cambridge
Research at Cambridge
For staff
For Cambridge students
For alumni
For our researchers
Business and enterprise
Colleges & departments
Email & phone search
Give to Cambridge
Libraries
Museums & collections
Cambridge Centre for Gallium Nitride
Home
Welcome
Welcome overview
Contact Us
Vacancies
Research Projects
Research Projects overview
Nitrides for the 21st Century
GaN power electronics on Si
GaN on Diamond
Porous Nitrides
Cubic Nitride LEDs
Hetero-print Systems
Time-Resolved Cathodoluminescence
National Epitaxy Facility (NEF)
Past Projects
Group Members
Group Members overview
Academic Staff
Research Staff
Graduate Students
Former Members
Facilities
Facilities overview
MOCVD Reactors
MOCVD Reactors overview
Thomas Swan 6 x 2-inch Reactor
Aixtron Reactor
Veeco Reactor
Electron Microscopy
High-Resolution XRD
Dual-Beam FIB/SEM
SEM-CL
Scanning Probe Microscopy
Time-resolved Cathodoluminescence Microscopy (TRCL)
Publications
Publications overview
Paper of the Month
Review Articles
Publications from 2024
Publications from 2023
Publications from 2022
Publications from 2021
Earlier publications
News
Media Coverage
Learning Resources
Learning Resources overview
Crystal Structures
Crystal Structures overview
What is a Crystal?
Common Cubic Structures
Hexagonal structures
The CsCl and NaCl structure
Light bulbs workshop
Light bulbs workshop overview
Introduction
What do light bulbs need to work?
Where does electricity come from?
How much electricity do light bulbs use?
Where does the wasted energy go?
Investigate wasted energy yourself!
Teacher's Guide
Acknowledgements
Infographics
Researcher Profiles
Researcher Profiles overview
Prof. Rachel Oliver
Prof. Sir Colin Humphreys
Dr Martin Frentrup
Dr Galih R Suwito
Dr Ted Thrush
Dr Markus Pristovsek
Dr Lata Sahonta
Dr Fabien Massabuau
John Jarman
Helen Springbett
Peter Griffin
Our Apps
Academic Staff
Cambridge Centre for Gallium Nitride
Group Members
Academic Staff
Research Staff
Graduate Students
Former Members
Welcome
Research Projects
Facilities
Publications
News
Media Coverage
Learning Resources
Professor Sir Colin Humphreys
+44 (0)1223 334457
colin.humphreys@msm.cam.ac.uk
Professor Rachel Oliver
+44 (0)1223 760750
rao28@cam.ac.uk
Dr David Wallis
+44 (0)1223 334404
djw24@cam.ac.uk