Donal Bradley

Donal Donat Conor Bradley, CBE, FRS, FInstP, FIET, FRSA is the Head of the Division of Mathematical, Physical & Life Sciences at the University of Oxford. He is also a Professorial Fellow at Jesus College. From 2006 to 2015, he was the Lee-Lucas Professor of Experimental Physics at Imperial College London. He was the Founding Director of the Centre for Plastic Electronics^[1] and served as Vice-Provost for Research at the college.

Bradley is known for his contributions to the development of molecular electronic materials and devices.^[2][3] Plastic or Printed electronics, as this technology is widely known, embodies a paradigm shift towards low temperature, solution-based device fabrication with applications in energy efficient displays and lighting, photovoltaic energy generation, medical diagnostics and longer term potential for optical communications.

Education

Bradley was a pupil and latterly Head Boy at the Jesuit Wimbledon College in the London Borough of Merton. He studied as an undergraduate student (BSc Physics) at Imperial College London between 1980 and 1983 and obtained a first class honours degree and Associateship of the Royal College of Science. He was awarded the Royal Society for the Encouragement of Arts, Manufactures and Commerce Silver Medal and fellowship (FRSA) as an outstanding graduate of the Royal College of Science and served in his second year as the Royal College of Science Union Departmental Representative for Physics. His postgraduate research was undertaken in the Physics and Chemistry of Solids Group at the Cavendish Laboratory, University of Cambridge and he received a PhD in 1987 for his thesis “Spectroscopic investigations of the processible conjugated polymers poly(p-phenylene vinylene) and poly(4,4'-diphenylenediphenylvinylene)”.

Career

After completing his PhD in 1987 he was briefly a postdoctoral research associate funded by British Petroleum before being simultaneously awarded the Unilever Research Fellowship in Chemical Physics at Corpus Christi College Cambridge (held 1987 - 1989) and a Toshiba Research Fellowship to work at the Toshiba Corporation Research and Development Center’s Chemical Laboratory in Kawasaki, Japan (held 1987-88).

Upon returning to Corpus Christi College, after a year spent in Japan studying the nonlinear optical properties of poly(arylenevinylene) polymers, he played a central role in the February 1989 discovery of conjugated polymer electroluminescence, suggesting the experiment that led to Jeremy Henley Burroughes' first observation of light emission. Together with Jeremy Burroughes he undertook the initial characterization of the basic properties of poly(p-phenylenevinylene) light emitting diodes, demonstrating that the light emission phenomenon was injection electroluminescence and that the frequency response was sufficiently fast to permit video display applications. Recognizing the importance of their discovery Bradley and Burroughes decided that it should be patented and together with Richard Friend filed a GB patent (PCT/GB90.00584)^[4] with first claim:

An electroluminescent device comprising a semiconductor layer in the form of a thin dense polymer film comprising at least one conjugated polymer;
a first contact layer which is selected so that on application of an electric field to said device charge carriers of a first type are injected into the semiconductor layer; and a second contact layer which is selected so that on application of an electric field to said device charge carriers of a second type are injected into the semiconductor layers, wherein the polymer film of the semiconductor layer has sufficiently low concentration of extrinsic charge carriers that on applying an electric field between the first and second contact layers across the semiconductor layer as to render the second contact layer positive relative to the first contact layer charge carriers of said first and second types are injected into the semiconductor layer and combine to form in the conjugated polymer charge carrier pairs which decay radiatively so that radiation is emitted from the conjugated polymer.

Bradley was the corresponding author for the subsequent 1990 Nature paper reporting the discovery of conjugated polymer electroluminescence.^[5] This paper rapidly became the most highly cited paper in the field of molecular electronic materials and devices - a position that it holds to this day - and it triggered an explosion of activity around the world, thereby launching the new field of plastic electronics.^[6]

Bradley is an Institute for Scientific Information highly cited author^[7] in both Materials Science and Physics with 563 papers published to date. His h-index is currently 87 and his publications have been cited a combined total of more than 42,500 times (ISI Web of Knowledge).

Named Lectures

Bradley delivered the first Nanjing Tech Global Vision Lecture (annual distinguished lecture) on “Molecular Control for Plastic Electronics and Photonics“ in July 2013.

In February 2011 he delivered the Distinguished Lecture in Physics on “Molecular Control for Conjugated Polymer Optics and Photonics“ at Hong Kong Baptist University.

in March 2010, he delivered the Royal Society Bakerian Lecture on “Plastic Electronics: their science and applications”.^[8]

In December 2009 he delivered the Institute of Physics Mott Lecture on “Plastic Electronics - The Science and Application of Molecular Electronic Materials and Devices” .^[9]

In November of the same year he delivered the Hong Kong Polytechnic University Chau Wai-yin Memorial Lecture “Twenty Years of Plastic Electronics - The Science and Application of Molecular Electronic Materials”^[10] and in October the University of Liverpool Frolich Lecture “The Science and Application of Molecular Electronic Materials and Devices”.

In 2005 Bradley delivered the European Science Foundation European Latsis Prize Lecture "Nano-Engineering a Molecular Electronic Future" at the European Parliament building in Strasbourg, France, the Institute of Physics Ireland Lecture Series (at Trinity College, Dublin, University College Cork and University College Galway) “Organic Electronics: A Molecular Vision” and in 2004 the Weissberger-Williams Lecture (same title) at the Eastman Kodak Company’s R&D Laboratories in Rochester, New York (USA).

Awards and Prizes

Bradley’s research has been recognized by

He was also the recipient of the Royal Society for the Encouragement of Arts, Manufactures and Commerce Silver Medal in 1983 as an outstanding graduate of the Royal College of Science. He was elected a Fellow of the Royal Society for the Encouragement of Arts, Manufactures and Commerce (FRSA) in 1983, a Fellow of the Royal Society (FRS) in 2004,^[23] a fellow of the Institute of Physics (FInstP) in 2005 and a Fellow of the Institution of Engineering and Technology (FIET) in 2013.

In the New Year Honours 2010 Bradley was appointed as a Commander of the Most Excellent Order of the British Empire (CBE) by the Queen for services to science.^{[24][25][26][27]}

Other honours

Bradley has been ranked since 2002 by the Institute for Scientific Information as one of the 1% most highly cited physicists in the world for research published over the past two decades.^[28] Additionally he has been ranked since 2010 as one of the 1% most highly cited materials scientists in the world for research published over the past two decades.^[28]

He is also ranked by the Institute for Scientific Information as one of the top 100 materials scientists in the world on the basis of the impact (citations per paper) of his journal papers published between 2000-10.^[29]

Other activities

Personal life

Bradley's father was the noted laser physicist Professor Dan Bradley.

References

External links

• Donal Bradley personal page at Imperial College London
• Molecular Vision
• Cambridge Display Technology ltd
• Solar Press