Prof Sir Colin Humphreys
CBE, FREng, FRS

 
 
 

Research Group News

October 2019

AC photocurrent imaging at an epitaxial layer of InGaN/GaN on sapphire was shown to be sensitive to the impedance of a polymer dot and the negative surface charge of an isolated cell. AC photocurrents were excited with a focused, intensity-modulated 405 nm laser and measured with a lock-in amplifier. Images were obtained by measuring the photocurrent while moving the electrochemical cell with respect to the laser beam using an XYZ positioning system.

InGaN suitable as a substrate for photoelectrochemical imaging in life sciences

11 October 2019

Bo's paper on the use of InGaN as the semiconductor substrate for AC photoelectrochemical imaging has been accepted by Sensors. AC photocurrent imaging at metal oxide semiconductors auch as ITO and ZnO nanorods has been shown to suitable for bioimaging applications such as the measurement of the negative surface charge ... [more]


September 2019

The Queen Mary research shows that graphene is 3D as well as 2D. Credit: Yiwei Sun

Graphene is 3D as well as 2D

25 September 2019

Graphene is actually a 3D material as well as a 2D material, according to a new study from Queen Mary University of London. Graphene is actually a 3D material as well as a 2D material, according to a new study from Queen Mary University of London. Realising that it is ... [more]


July 2019

Characterising Paragraf graphene using a range of techniques

Queen Mary and Paragraf awarded £500,000 to explore using Graphene to replace rare metal Indium

10 July 2019

Queen Mary University of London and the graphene-device company Paragraf have been awarded £500,000 by Innovate UK to explore using graphene to replace the rare metal Indium. The Queen Mary research will be led by Sir Colin Humphreys from the School of Engineering and Materials Science, with co-investigators Dr Oliver Fenwick ... [more]


January 2019

Bi-layer graphene

Properties of ‘wonder material’ graphene change in humid conditions

21 January 2019

Graphene exhibits very different properties in humid conditions, according to researchers from Queen Mary University of London. The ‘wonder material’, which is made from carbon and was discovered in 2004, is hailed for many of its extraordinary characteristics including being stronger than steel, more conductive than copper, light, flexible and transparent. ... [more]


February 2018

Professor Sir Colin Humphreys

Materials expert joins Queen Mary University of London

23 February 2018

Professor Sir Colin Humphreys, CBE, FREng, FRS, the renowned British physicist and materials expert, is set to join Queen Mary University of London as Professor of Materials Science. Working in the School of Engineering and Materials Science from 1 March 2018, he will be responsible for raising the profile of Materials Science ... [more]