Oxford University
Mark Thompson (chemist) was an employee for whom in Aug 1986?
Mark Thompson ( chemist ) Mark E . Thompson is a Californian chemistry academic who has worked with OLEDs . Career . Mark E . Thompson graduated with honors from the University of California , Berkeley earning his B.S . in chemistry in 1980 . He earned a Ph.D . in inorganic chemistry working under the guidance of Prof . John E . Bercaw . He conducted research at a Smithsonian Environmental Research Center ( S.E.R.C. ) as a Research Fellow in an Inorganic Chemistry Laboratory at Oxford University . There , Thompson worked with Prof . Malcolm L . H . Green investigating specific properties of organometallic materials . Following his S.E.R.C . Fellowship , Thompson became an assistant professor at Princeton University in 1987 . He moved to the University of Southern California in 1995 where he currently holds a Ray R . Irani Chair of Chemistry . From 2005-2008 , Thompson served as the Chemistry Department Chairman at USC . Research . Thompsons multidisciplinary research focuses on solving problems related to energy inefficiency of existing light-generating sources . His research is primarily focused on organic light-emitting diodes , organic photovoltaics and device interfaces . Thompsons research on OLEDs addresses problems such as the mechanism of electroluminescence , the identification of new materials and device architectures for OLEDs . His work in OLEDs is part of a long-term collaboration with Prof . Stephen Forrest ( University of Michigan ) , dating back to 1994 . The Thompson Group were the first to report efficient electro-phosphorescence in OLEDs , which shifts the effieincy limit of OLEDs from 25% to 100% . One area focus has been on organometallic complexes as phosphorescent emitters in OLEDs . His laboratory discovered and developed a class of Ir ( III ) -based complexes featuring polyaromatic ligands , which can be efficiently tuned for color emission and excited-state lifetimes . These materials can be doped in the emissive layer of multilayer , vapor-deposited OLEDs and generally show high stabilities and efficiencies . Emitters form this family of materials were developed by the Universal Display Corporation and can be found in a wide range of commercial electronic displays , including the Galaxy mobile phone form Samsung and OLED-based televisions form LG . He has also done work on deep blue phosphorescent organic light-emitting diodes with very high brightness and efficiency , which are essential for display and lighting applications . His results represent an advance in blue-emitting phosphorescent OLED architectures and materials combinations . Additionally , Thompson has shown a very high-efficiency OLED approaching 100% internal quantum efficiency . The high internal phosphorescence efficiency and charge balance in the structure are responsible for the high efficiency . He also developed a new white OLED architecture that uses a fluorescent emitting dopant to harness all high energy singlet excitons for blue emission , and phosphorescent dopants to harvest lower-energy triplet excitons for green and red emission . As of now , Thompson currently holds over 200 patents in OLED materials and devices . Another focus of his is on organic photovoltaics ( OPVs ) . Thompsons research highlights recent progress in explaining molecular characteristics which result in photovoltage losses in heterojunction organic photovoltaics . In addition to this research , Thompson grows thin films to control their structure . Then with these films , he can study the nature of energy and charge propagation . He has done work on thin films made of zinc tetraphenylporphyrin ( ZnTPP ) which are used to prepare Organic solar cells . He has worked with singlet fission materials that promise to give markedly improved efficiencies for OPVs by current multiplication . Singlet fission involves the splitting of a singlet exciton into two triplet excitons , so a single photon can lead to two hole/electron pairs in a photovoltaic cell . His work has led to tetracene based materials that give high triplet yield from amorphous thin films . Thompson has also explored the use of symmetry breaking charge transfer in OPV materials as a means to enhance the open circuit voltages of organic photovoltaics . Another topic of research for Thompson has been on biotic/abiotic interfaces . The research focuses on smart materials that can respond to different environmental factors to produce technologies that produce desirable results . Such materials can be sensitive to magnetic fields , pH , light , stress , voltage , temperature , etc . For instance , an implantable , resonant mass sensor was created ( built on a probe with a piezoelectric thin film ) for liquid mass sensing . Thompson has demonstrated a selective functionalization of a range of InO nanowire devices by electrochemically activating their surfaces and then immobilizing bio-recognition agents such as single-strand DNA or antibodies . This has the potential to be used in large-scale biosensor arrays or chips for inexpensive multiplexed detection . Thompson has also worked with thermally responsive bioadhesives , designed to bind strongly to ocular tissues , such as retina or sclera , at physiological temperature and release completely at 10 °C . These adhesives can be used to anchor devices to retina or seal wounds in the sclera . Thompsons projects ultimately seek to design biomaterials to improve and revolutionize medical procedures . Awards and honors . - 2017 Recipient of the Nishizawa Medal from the Institute of Electrical and Electronics Engineers ( IEEE ) - 2016 Recipient of the Photonics Award from the Institute of Electrical and Electronics Engineers ( IEEE ) - 2015 Recipient of the American Chemical Society Award in Chemistry of Materials - 2014 Initiated as a National Academy of Inventors Fellow - 2013 Recipient of the Tolman Award - 2011 Ranked 12th of the top 100 chemists worldwide for their citation impact scores for chemistry papers published since January 2000 , by Thomson Reuters Web of Science - 2007 USC Associates Award for Excellence in Research - 2006 MRS Medal , given by the Materials Research Society for the development of new materials for organic LEDs - 2006 Jan Rajchman Prize for Outstanding Research in Flat Panel Displays , given by the Society for Information Display - 2004 Raubenheimer Outstanding Faculty Award , College of Letters , Arts and Science , University of Southern California - 1998 Thomas Alva Edison Patent Award , presented by the Research and Development Council of New Jersey , for multicolor organic light emitting devices - 1998 Distinguished Inventor of the Year , awarded by The Intellectual Property Owners Association for the development of stacked multicolor organic LEDs