Current Group members


Prof. Ifor Samuel

Ifor studied for both his MA and PhD in Physics at Cambridge where he developed his fascination with conjugated polymers. After finishing his PhD he moved to Paris and worked with France Telecom for two years, investigating the non linear optical properties of organic materials. Then he returned to Cambridge for a year, received a Royal Society University Research Fellowship and took up a position at the University of Durham until August 2000 when he moved to St Andrews. In 2001 he started the Organic Semiconductor Centre to encourage collaboration between physicists and chemists in developing the next generation of organic semiconductors and the wider field of organic electronics.



Prof Graham Turnbull

Graham is a Professor in the School of Physics and Astronomy at the University of St Andrews. He was born in Edinburgh, and brought up in the Scottish Borders. He graduated with a first-class M.Sci. degree in physics in 1995 and a Ph.D. in 1999, both from the University of St Andrews. His doctoral research project on nonlinear optics was supported by a Carnegie Trust Scholarship. Graham's work on organic semiconductors began as a postdoc at the University of Durham. From 2002 to 2007 he held an EPSRC Advanced Research Fellowship for research into advanced solid-state polymer laser systems. His current research interests focus on optical applications of soft materials, including organic semiconductor photonics, chemical sensing, nanoimprint lithography, nonlinear optics and optofluidics. Click here for Graham's web page.

Dr Arvydas Ruseckas

Arvydas graduated in Physics from Vilnius University in Lithuania in 1985 and received his PhD in chemical dynamics and physics jointly from the Lund University (Sweden) and the Institute of Physics (Vilnius) in 1999. He joined the team at the University of St Andrews in February 2001. His current research involves studies of photophysics and light amplification in conducting polymers, molecular solids and model organic molecules using ultrashort light pulses and ultrafast spectroscopy.








Dr Tariq Sajjad

M. Tariq Sajjad was born in Kot Addu (Southern Punjab) in Pakistan. He received his M.Sc in Electronics from Quaid-i-Azam University, Islamabad, Pakistan. Then he moved to the UK where he obtained his M.Sc in Nanotechnology and nanoelectronic devices and his PhD, both from the Advanced Technology Institute at the University of Surrey. His PhD was focussed on Exciton Dynamics in carbon nanotubes, where he studied exciton diffusion and exciton-exciton annihilation in carbon nanotubes. In October 2012 Tariq joined the group as a research fellow and currently working on photophysics of organic semiconductors. Tariq also a coordinates of the Organic Semiconductutor centre and is a project manager of AFMRC

, a facility that provides state of the art capability in analysis and control of functional materials at the nanoscale.



Dr Pavlos Manousiadis

Pavlos was born in Chernogorks, Russia. After completing his undergraduate studies in physics at University of Athens in 2005, he continued his studies and obtained M.Sc. degrees in I.T. and solid-state physics from the same university. His Ph.D. research was conducted in National Centre for Scientific Research "Demokritos", in the area of silicon nanocrystals and their application in photovoltaics. In April of 2013, he joined the group as a research fellow and currently is working in the field of optical communications.





Dr Ross Gillanders

Ross was awarded a BSc(Hons) in Instrumentation with Applied Physics from Glasgow Caledonian University in 2001, and completed his PhD in Physical Chemistry with a thesis titled “Optically-Addressed Thin Film Sensors” in 2004 at Strathclyde University, Glasgow. His first postdoctoral position was at the ICMCB at the University of Bordeaux developing spectroscopic instrumentation for supercritical fluid processes, before moving to the Optical Sensors Laboratory in Dublin City University in late 2005 to work on an optical oxygen sensor for marine and estuarine applications. He subsequently worked in University College Cork developing novel polymeric optical oxygen sensors for food packaging. Prior to taking the role at St Andrews in October 2013, Ross worked for three years at Cork Institute of Technology, mainly developing instrumentation for industry-led water-related projects.

Dr Caroline Murawski

Caroline studied physics at the University of Technology in Dresden, Germany. She received a diploma degree in 2010 for her work on white organic light-emitting diodes with high colour quality under supervision of Prof. Karl Leo. Staying for a PhD in Dresden, she investigated emitter orientation and examined exciton annihilation processes which cause efficiency roll-off. Caroline joined the groups of Prof. Ifor Samuel and Prof. Malte Gather as a Research Fellow in May 2015. Her current research includes exciton diffusion length analyses in small-molecule organic semiconductors and the application of OLEDs in biophotonics.



Dr Lethy Jagadamma

Lethy Krishnan Jagadamma received her PhD in Physics from University of Strathlcyde, Glasgow. In 2012 she moved to KAUST, KSA to join Prof Amassian’s group as a postdoctoral fellow. Her research was mainly focussed on the development of solution processed interlayers for efficient organic optoelectronic devices. She joined the Organic Semiconductor group at St-Andrews as Research Fellow in September 2015. Her research interests are mainly solution processed and vacuum evaporated metal oxides for optoelectronic devices such as organic, QD, perovskite solar cells, and light emitting diodes.


Dr Sai Rajendran

Dr. Sai Kiran Rajendran is a Research Staff at the School of Physics and Astronomy, University of St Andrews, working on the EPSRC Project Hybrid Polaritonics since November 2015. His current interests involve fabrication and engineering organic materials towards achieving strong coupling in planar microcavities and understanding their properties using ultrafast spectroscopic studies. Earlier he graduated in Physics from Sri Sathya Sai Institute of Higher Learning, Anantapur, India and worked on decorated carbon nanotubes; and non-linear optical studies on copper oxide nanorods. He then joined as an early stage researcher at the Dipartimento di Fisica, Politecnico di Milano, Milan, Italy as part of the Marie Curie Project ICARUS to study strongly coupled organic materials in microcavites using ultrafast spectroscopy techniques and obtained a Ph.D. degree thereafter.

Jonathon Harwell

Jonathon is from Sussex, England and graduated with an MPhys in Physics from University St Andrews in 2014. In 2012 he worked with Dr Bansal and Dr Giardini on the fabrication of an optoelectronic muscle contraction sensor, with a view to use as an input device for prosthetic limbs. For his masters project he performed an investigation into the effects of strong coupling on organic light emitters in metal microcavities, with a focus on the effect on the energy of the light emitting singlet states. He started a PhD with Prof Ifor Samuel's group in September 2014, and is working on the fabrication of solar cells using perovskites - a promising new class of material - and on Monte Carlo simulations for modelling exciton diffusion in crystalline materials.

Francisco Tenopala Carmona

Francisco was born in Mexico City, Mexico. There he graduated with a BSc in Physics from the National Autonomous University of Mexico, in which he developed a final research project on Random Lasers. After that, he obtained the MSc degree in Materials Science and Engineering from the same university. In his masters project he worked in deposition and self-assembling techniques of gold thin films. He joined the Organic Semiconductor Optoelectronics group in September 2014 as a PhD student. Here he is working on single molecule spectroscopy of conjugated polymers under the co-supervision of Prof Ifor Samuel and Dr Carlos Penedo-Esteiro.




James Glackin

James is from Leigh, Lancashire and graduated from the University of Manchester with an MPhys degree in 2015. His masters project consisted of two smaller projects: building a solid state spectrometer for atmospheric measurements and modelling of random laser systems. James joined the group in September 2015 to start a PhD in explosive vapour sensors under the supervison of Prof. Graham Turnbull and Prof. Ifor Samuel.







Oskar Blaszczyk

Oskar graduated with a BSc in Physics from Imperial College London and an MSc in Medical Physics from University College London. In his Bachelors thesis he investigated the embodied energy of solar cells based on inorganic materials. In his Masters thesis he developed a theoretical model of the operation of an a-Se X-ray detector for a novel imagining method, coded aperture phase contrast X-ray imaging. In his PhD Oskar is looking at exciton diffusion with particular focus on how exciton transport can be controlled for optimising performance of optoelectronic devices and extending exciton diffusion length. Oskar enjoys sailing and martial arts.



Nidhi Sharma

Nidhi is from Dharamshala, Himachal Pradesh, a small state situated in the north of India. She completed her BSc (Hons) in chemistry from Panjab University Chandigarh, India and moved to Bangalore to undertake a masters degree at the Indian Institute of Science (IISc) Bangalore. Her masters project was to design synthesize and characterize materials which emit via thermally activated delayed fluorescence (TADF). Nidhi's passion for luminescent materials has brought her to St. Andrews to work on new TADF emitters and finally to fabricate Organic light emitting diode (OLED) using these emitters. (Co-supervised with Dr. Eli Zysman Colman, School of Chemistry)





Suqian Ma

Suqian was born in Henan, China and graduated with a BSc in Chemistry from Jilin University, China. In 2013, she joined the State Key Laboratory of Supramolecular Structure and Materials in the same university to start a PhD in organic fluorescence materials. She joined OSO in September 2016 as a joint PhD student under the sponsorship of China Scholarship Council. Now she is investigating into organic solid-state lasers of polymers and single crystals under the supervision of Prof. Ifor Samuel and Prof. Graham Turnbull.





Natalie Mica

Natalie was born in Austin , Texas. In 2016 she completed her BSc with Honors from the University of Texas at Austin with a research project about the dynamics of phase separation in lipid membranes. Later that year she joined the group to study the fabrication of organic and hybrid solar cells.





Mengjie Wei

Mengjie is from Anhui, China and graduated from Shanghai University in March 2016 with an MSc in Microelectronics. During the two and a half years, she worked on a national project about the multi-wavelength amplified spontaneous emission from different kinds of micro-structures. In September 2016, Mengjie was offered a place as PhD student under the supervision of Prof Ifor Samuel and was sponsored by China Scholarship Council. Currently her research focuses on organic semiconductor polariton light emitters, especially on the strong coupling and polariton lasing phenomena of organic materials in microcavities.