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
Ehrler B
(2012)
Singlet exciton fission-sensitized infrared quantum dot solar cells.
in Nano letters
Guijarro N
(2012)
Toward Antimony Selenide Sensitized Solar Cells: Efficient Charge Photogeneration at spiro-OMeTAD/Sb2Se3/Metal Oxide Heterojunctions.
in The journal of physical chemistry letters
Kim J
(2012)
A comparison between dithienosilole and dithienogermole donor-acceptor type co-polymers for organic bulk heterojunction photovoltaic devices
in Journal of Materials Chemistry
Gao F
(2012)
Quantifying Loss Mechanisms in Polymer:Fullerene Photovoltaic Devices
in Advanced Energy Materials
Hancox I
(2012)
Optimization of a High Work Function Solution Processed Vanadium Oxide Hole-Extracting Layer for Small Molecule and Polymer Organic Photovoltaic Cells
in The Journal of Physical Chemistry C
Brenner T
(2012)
White-light bias external quantum efficiency measurements of standard and inverted P3HT : PCBM photovoltaic cells
in Journal of Physics D: Applied Physics
Cho S
(2012)
Probing the effect of relative molecular orientation on the photovoltaic device performance of an organic bilayer heterojunction using soft x-ray spectroscopies
in Applied Physics Letters
Bannock J
(2012)
Continuous Synthesis of Device-Grade Semiconducting Polymers in Droplet-Based Microreactors
in Advanced Functional Materials
Kirchartz T
(2012)
Meaning of reaction orders in polymer:fullerene solar cells
in Physical Review B
Wang J
(2012)
Control of exciton spin statistics through spin polarization in organic optoelectronic devices.
in Nature communications
Collins B
(2012)
Absolute Measurement of Domain Composition and Nanoscale Size Distribution Explains Performance in PTB7:PC 71 BM Solar Cells
in Advanced Energy Materials
Lutz T
(2012)
Thermal decomposition of solution processable metal xanthates on mesoporous titanium dioxide films: a new route to quantum-dot sensitised heterojunctions.
in Physical chemistry chemical physics : PCCP
Ehrler B
(2012)
Hybrid pentacene/a-silicon solar cells utilizing multiple carrier generation via singlet exciton fission
in Applied Physics Letters
Ravirajan P
(2012)
Post-Processing Treatments in Hybrid Polymer/Titanium Dioxide Multilayer Solar Cells
in Journal of Nanoelectronics and Optoelectronics
Ehrler B
(2012)
In situ measurement of exciton energy in hybrid singlet-fission solar cells.
in Nature communications
O'Mahony F
(2012)
Electron and hole transfer at metal oxide/Sb2S3/spiro-OMeTAD heterojunctions
in Energy & Environmental Science
Li Z
(2013)
Voltage-dependent photocurrent transients of PTB7:PC70BM solar cells: Experiment and numerical simulation
in Journal of Applied Physics
Urbina A
(2013)
Work function engineering of ZnO electrodes by using p-type and n-type doped carbon nanotubes.
in Nanotechnology
Hou B
(2013)
Structure and Band Edge Energy of Highly Luminescent CdSe 1- x Te x Alloyed Quantum Dots
in The Journal of Physical Chemistry C
Nightingale A
(2013)
Large-scale synthesis of nanocrystals in a multichannel droplet reactor
in Journal of Materials Chemistry A
Bansal N
(2013)
Solution Processed Polymer-Inorganic Semiconductor Solar Cells Employing Sb 2 S 3 as a Light Harvesting and Electron Transporting Material
in Advanced Energy Materials
Wood S
(2013)
Understanding the relationship between molecular order and charge transport properties in conjugated polymer based organic blend photovoltaic devices.
in The Journal of chemical physics
Shoaee S
(2013)
Charge Photogeneration for a Series of Thiazolo-Thiazole Donor Polymers Blended with the Fullerene Electron Acceptors PCBM and ICBA
in Advanced Functional Materials