Leigh Canham
Encyclopedia
Leigh Canham is a British scientist who has pioneered the optoelectronic and biomedical applications of porous silicon
.
Leigh Canham graduated from University College London
in 1979 with a BSc in Physics and completed his PhD at King's College London
in 1983.
His early work in this area took place at the Royal Signals and Radar Establishment
in Malvern, Worcestershire
.
Canham and his colleagues showed that electrochemically etched silicon could be made porous. This porous material could emit visible light when a current was passed through it (electroluminescence
.
Later the group demonstrated the biocompatibility of porous silicon.
Canham now works as Chief Scientific Officer of psiMedica (part of pSiVida). According to the pSiVida web site, Canham is the most cited author on porous silicon. In a study of most cited physicists up to 1997 Canham ranked at 771.
Porous silicon
Porous silicon is a form of the chemical element silicon which has introduced nanoporous holes in its microstructure, rendering a large surface to volume ratio in the order of 500 m2/cm3.-History:...
.
Leigh Canham graduated from University College London
University College London
University College London is a public research university located in London, United Kingdom and the oldest and largest constituent college of the federal University of London...
in 1979 with a BSc in Physics and completed his PhD at King's College London
King's College London
King's College London is a public research university located in London, United Kingdom and a constituent college of the federal University of London. King's has a claim to being the third oldest university in England, having been founded by King George IV and the Duke of Wellington in 1829, and...
in 1983.
His early work in this area took place at the Royal Signals and Radar Establishment
Royal Signals and Radar Establishment
The Royal Signals and Radar Establishment was a scientific research establishment within the Ministry of Defence of the United Kingdom, located primarily at Malvern in Worcestershire. It was formed in 1976 in an amalgamation of earlier research establishments including the Royal Radar Establishment...
in Malvern, Worcestershire
Malvern, Worcestershire
Malvern is a town and civil parish in Worcestershire, England, governed by Malvern Town Council. As of the 2001 census it has a population of 28,749, and includes the historical settlement and commercial centre of Great Malvern on the steep eastern flank of the Malvern Hills, and the former...
.
Canham and his colleagues showed that electrochemically etched silicon could be made porous. This porous material could emit visible light when a current was passed through it (electroluminescence
Electroluminescence
Electroluminescence is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field...
.
Later the group demonstrated the biocompatibility of porous silicon.
Canham now works as Chief Scientific Officer of psiMedica (part of pSiVida). According to the pSiVida web site, Canham is the most cited author on porous silicon. In a study of most cited physicists up to 1997 Canham ranked at 771.
Selected papers
- Porous silicon-based scaffolds for tissue engineering and other biomedical applications, Jeffery L. Coffer, Melanie A. Whitehead, Dattatri K. Nagesha, Priyabrata Mukherjee, Giridhar Akkaraju, Mihaela Totolici, Roghieh S. Saffie, Leigh T. Canham, physica status solidi (a) Vol. 202, Issue 8 , Pages 1451 - 1455
- Gaining light from silicon, Leigh Canham, Nature vol. 408, pp. 411 – 412 (2000)
- Progress towards silicon optoelectronics using porous silicon technology, L. T. Canham, T. I. Cox, A. Loni and A. J. Simons, Applied Surface Science, Volume 102, Pages 436-441 (1996)
- Porous silicon multilayer optical waveguides, A. Loni, L. T. Canham, M. G. Berger, R. Arens-Fischer, H. Munder, H. Luth, H. F. Arrand and T. M. Benson, Thin Solid Films, Vol. 276, Issues 1-2, pages 143-146 (1996)
- The origin of efficient luminescence in highly porous silicon, K. J. Nash, P. D. J. Calcott, L. T. Canham, M. J. Kane and D. Brumhead, J. of Luminescence, Volumes 60-61, Pages 297-301 (1994)
- Electronic quality of vapour phase epitaxial Si grown at reduced temperature, W. Y. Leong, L. T. Canham, I. M. Young and D. J. Robbins, Thin Solid Films, Volume 184, Issues 1-2, pages 131-137 (1990)
- Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers, L. T. Canham, Applied Physic Letters, Volume 57, pages 1046-1048 (1990)
Books
- Properties of Porous Silicon, Leigh Canham (Ed.) Inspec/IEE (1997) ISBN 0-85296-932-5
- Biomedical Mems: Clinical Applications of Silicon Technology, Leigh Canham, Inst of Physics Pub Inc (2003) ISBN 0-7503-0921-0