SUPERGEN Excitonic Solar Cell Consortium - MAIN CORE
Lead Research Organisation:
University of Warwick
Department Name: Chemistry
Abstract
Excitonic Solar Cells (ESCs) are a class of non-conventional solar cells, based on organic and nanostructured materials, in which the charge carriers are generated and simultaneously separated across a heterointerface. They include dye-sensitized nanocrystalline cells, organic cells and hybrid organic-inorganic cells, and in all cases cell fabrication can be achieved using low cost, large area deposition methods on both rigid and flexible substrates. Consequently, ESCs offer genuine medium to long term prospects for reducing the cost of PV below the commercially important threshold of $1 per watt peak. To date work on all types of ESC has been largely restricted to basic studies in academic and national research laboratories, with particular emphasis on improving device understanding and cell efficiency, which are 11% for state of the art dye cells, and much lower for the less well developed organic (4-5%) and hybrid cells (2-3%). However, progress in all types of ESC has undoubtedly been impressive in recent years, with research activity growing rapidly throughout the world. Major improvements in performance have been demonstrated in all cell types with the SUPERGEN Consortium at the forefront of much of this progress. There have also been initial steps to commercialise some ESCs, with the first manufacturing plant to produce dye sensitised cells opening in the UK in 2007. However, much fundamental research still needs to be carried out, in particular on the less well developed organic and hybrid cells, but also on the more mature dye cells where many important challenges must be addressed to enable future successful commercialisation. The UK is in an excellent position to lead this activity in an emerging area of PV technology and renewed SUPERGEN funding will enable the Consortium to remain at the forefront of innovative research, while exploiting its strong connections to a number of relevant commercial organisations.Our proposed Main Core programme builds on the successes of our first SUPERGEN project which benefited strongly from the integration of expertise and knowledge in the two main areas of excitonic solar cells, namely dye sensitised cells and organic cells. We will continue to promote cross-fertilisation of ideas for optimising existing cell types and for innovating new types of cells, with the overall aim of improving the performance of different types of ESC. Training will remain a key priority for the Consortium and the exchange of PDRAs and PhD students between the partner universities will ensure the highest quality multi-disciplinary research environment. The UK has a very strong international position in research into ESCs and the renewal of the SUPERGEN programme will help ensure it remains both competitive and innovative in future years.
Organisations
Publications
Bailey J
(2014)
Understanding the role of ultra-thin polymeric interlayers in improving efficiency of polymer light emitting diodes
in Journal of Applied Physics
Li Z
(2011)
Transient photocurrent measurements of PCDTBT:PC70BM and PCPDTBT:PC70BM Solar Cells: Evidence for charge trapping in efficient polymer/fullerene blends
in Journal of Applied Physics
Dattani R
(2014)
A general mechanism for controlling thin film structures in all-conjugated block copolymer:fullerene blends
in J. Mater. Chem. A
Hou B
(2014)
Rapid phosphine-free synthesis of CdSe quantum dots: promoting the generation of Se precursors using a radical initiator
in J. Mater. Chem. A
Chauhan V
(2010)
Elucidating the factors that determine the open circuit voltage in discrete heterojunction organic photovoltaic cells
in J. Mater. Chem.
Wood S
(2014)
In situ formation of organic-inorganic hybrid nanostructures for photovoltaic applications
in Faraday Discuss.
Grew B
(2014)
High Mobility Titanium-doped Indium Oxide for Use in Tandem Solar Cells Deposited via Pulsed DC Magnetron Sputtering
in Energy Procedia
Hancox I
(2010)
Increased efficiency of small molecule photovoltaic cells by insertion of a MoO 3 hole-extracting layer
in Energy Environ. Sci.
Beaumont N
(2011)
Increased efficiency in small molecule organic photovoltaic cells through electrode modification with self-assembled monolayers
in Energy & Environmental Science
Dimitrov S
(2014)
Towards optimisation of photocurrent from fullerene excitons in organic solar cells
in Energy & Environmental Science