PhD 2009-2012, PDRA 2012-2013, Now at NTU, Singapore

PDRA
Optical and magnetic studies of doped metal oxide thin films
Supervisor:
Dr Martyn McLachlan
Duration: March 2012-Feb 2014
Sponsor: KAUST- Imperial College Academic Excellence Alliance

PhD Pulsed Laser Deposition of Zinc Oxide Thin Films for Optoelectronic Applications
Supervisors: Dr Martyn McLachlan and Dr Mary Ryan
Sponsor: Engineering and Physical Sciences Research Council (EPSRC)
End: March 2012
Joe Franklin
Inorganic-Organic hybrid photovoltaic (h-PV) devices are a realistic prospect for the long-term development of entirely solution processable, scalable devices on rigid and flexible substrates. Progress made towards realising h-PV technologies has however been slow, the devices prepared thus far demonstrate poor conversion efficiencies. To investigate the origins of the limited performance we are interested in creating model planar systems in order to study the influence of device architecture, processing conditions, layer thickness and electronic properties on device performance. In this project the method of choice for metal oxide (ZnO) deposition is pulsed laser deposition (PLD), a technique that offers control of film thickness, crystallinity, stoichiometry and roughness. Of particular interest is the development of low temperature processing routes for ZnO deposition that will open up compatibility with growth of h-PV devices on lightweight flexible substrates.
PUBLICATIONS
J. B. Franklin, J. B. Gilchrist, J. M. Downing, K.A. Roy and M. A. McLachlan Transparent Conducting Oxide Top Contacts for Organic Electronics, Journal of Materials Chemistry C, (2013) DOI:10.1039/C3TC31296H
S. Wood,
J. B. Franklin, P. N. Stavrinou, M. A. McLachlan and J-S Kim, Interfacial molecular order of conjugated polymer in P3HT:ZnO bilayer photovoltaics and its impact on device performance, Applied Physics Letters (2013), 103, 153304
J. B. Franklin, J. Downing, F. Giuliani, M. P. Ryan & M. A. McLachlan Building on Soft Foundations – New Possibilities for Controlling Hybrid Photovoltaic Architectures. Advanced Energy Materials. (2012),2 (5): 528-531.
J. B. Franklin, B. Zou, D. W. McComb, P. Petrov, M. P. Ryan, & M. A. McLachlan Optimised Pulsed Laser Deposition of ZnO Thin Films on Transparent Conducting Substrates. Journal of Materials Chemistry. (2011) 21:8178-8182.


PRESENTATIONS

J. B. Franklin, M. Ryan, B. Zou, P. Petrov, M. A. McLachlan, ‘Development of Model Hybrid PV Device Systems for Interfacial Studies’, G: Novel Fabrication Methods for Electronic Devices, MRS Fall ’10, Boston USA, (oral presentation).