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PVFIFTY SIGNED

TOWARDS A 50% EFFICIENT CONCENTRATOR SOLAR CELL AND A 40% EFFICIENT SPACE SOLAR CELL

Total Cost €

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EC-Contrib. €

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Partnership

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 PVFIFTY project word cloud

Explore the words cloud of the PVFIFTY project. It provides you a very rough idea of what is the project "PVFIFTY" about.

performance    characterise    semiconductors    062    efficiencies    emission    gap    contacts    favourably    front    structures    gt    reduce    ingap    electroluminescent    resistive    1ev    processed    configurations    photogenerated    confirmed    3gaas    data    material    time    electricity    quantum    grown    charges    sheet    concentration    band    computer    series    mismatch    electrical    prices    preliminary    device    redesigned    models    introduces    junction    efficiency    qw    ingaasp    price    directionality    layers    nature    generate    collectors    gaasbi0    solar    gaas    electroreflectance    compete    photovoltaic    unstrained    concentrations    parallel    correlated    compressive    in0    semiconductor    absorber    cell    resistivity    ellipsometry    structure    bismide    transport    spectroscopic    imaging    layer    considerable    determined    excess       tensile    resolved    1000x    grid    optical    photo    concentrator    conventional    radiative    delivers    defects    lateral    wholesale    spectroscopy    electronic    materials    cent    50      

Project "PVFIFTY" data sheet

The following table provides information about the project.

Coordinator
IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE 

Organization address
address: SOUTH KENSINGTON CAMPUS EXHIBITION ROAD
city: LONDON
postcode: SW7 2AZ
website: http://www.imperial.ac.uk/

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website http://www.imperial.ac.uk/
 Total cost 183˙454 €
 EC max contribution 183˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-05-01   to  2017-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE UK (LONDON) coordinator 183˙454.00

Map

 Project objective

Concentrator photovoltaic solar collectors have the potential to generate electricity at costs as low as 6¢/kWh, a price where they compete favourably with wholesale electricity prices. To achieve this, a solar cell with an efficiency in excess of 50% is required and will require considerable development over the present state of the art. In particular, a new semiconductor absorber layer with a 1eV band-gap will be required in addition to solar concentrations in excess of 1000X. The proposed research addresses both of these areas.

Preliminary work has identified the use of bismide semiconductors to achieve the required 1eV semiconductor junction. A 1eV GaAsBi0.062 layer can be grown that has only 0.6% mismatch to GaAs, as compared to conventional In0.3GaAs that introduces >2% mismatch. We will develop high-performance photovoltaic devices based on this material. We will characterise the optical and electronic structure of these new materials using spectroscopic ellipsometry and photo/electroreflectance. The nature and concentration of defects will be determined using time-resolved optical spectroscopy and correlated with solar cell performance data by extending existing computer models.

To achieve high efficiencies at high concentrations, it is necessary to reduce the resistive loss. Here, we propose to exploit lateral emission in tensile quantum well (QW) layers to provide a parallel radiative transport pathway that delivers photogenerated charges to the electrical contacts. A series of InGaP/InGaAsP QW test structures in compressive, tensile and unstrained configurations will be grown to control the directionality of emission, which will be confirmed using spectroscopic measurements. Concentrator solar cell device structures will be processed and the effective sheet resistivity evaluated using electroluminescent imaging. Front grid structures we be redesigned to account for radiative transport.

 Publications

year authors and title journal last update
List of publications.
2016 Alexander Mellor, Nicholas P. Hylton, Hubert Hauser, Tomos Thomas, Kan-Hua Lee, Yahya Al-Saleh, Vincenzo Giannini, Avi Braun, Josine Loo, Dries Vercruysse, Pol Van Dorpe, Benedikt Blasi, Stefan A. Maier, N. J. Ekins-Daukes
Nanoparticle Scattering for Multijunction Solar Cells: The Tradeoff Between Absorption Enhancement and Transmission Loss
published pages: 1678-1687, ISSN: 2156-3381, DOI: 10.1109/JPHOTOV.2016.2601944
IEEE Journal of Photovoltaics 6/6 2019-06-13
2017 A. Mellor, N.P. Hylton, S.A. Maier, N. Ekins-Daukes
Interstitial light-trapping design for multi-junction solar cells
published pages: 212-218, ISSN: 0927-0248, DOI: 10.1016/j.solmat.2016.09.005
Solar Energy Materials and Solar Cells 159 2019-06-13

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