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HISTORIC

High efficiency GaInP/GaAs Tandem wafer bonded solar cell on silicon

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EC-Contrib. €

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Partnership

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 HISTORIC project word cloud

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

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Project "HISTORIC" data sheet

The following table provides information about the project.

Coordinator
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 

Organization address
address: HANSASTRASSE 27C
city: MUNCHEN
postcode: 80686
website: www.fraunhofer.de

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 Germany [DE]
 Project website https://www.ise.fraunhofer.de/en/research-projects/historic
 Total cost 159˙460 €
 EC max contribution 159˙460 € (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 2015-06-01   to  2017-05-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. DE (MUNCHEN) coordinator 159˙460.00

Map

 Project objective

Direct conversion of photons into electricity is a promising clean energy solution to answer the challenge of energy supply security, competitiveness of the EU industry, electricity prices and climate change. Monocrystalline silicon (c-Si), the dominant technology on the photovoltaic (PV) market, benefits from a strong industry and record power conversion efficiency of 25%, with a cost decreasing every year. However, c-Si technology, mainly limited by material properties, has very little room for efficiency improvement. Much higher efficiencies has been achieved by stacking diodes made of III-V semiconductors; but for cost and availability reasons, the III-V solar cells are restricted to specific markets (space & terrestrial concentration). A hybrid solution combining the advantages III-V multi-junction cells with the benefits of Si, the most wide-spread PV material, offers great opportunities. Indeed, efficiencies up to 35% under 1-sun AM1.5G conditions is expected for a triple junction device based on conventional c-Si cells combined with additional (Al)GaAs and GaInP pn-junctions (4 µm of III-V material on top of a c-Si wafer). However the direct epitaxial growth of (Al)GaAs & GaInP on Si is highly mismatched and sufficient material quality has not been achieved so far. The innovative approach proposed in this project bypass the mismatch and enables to combine high crystal quality III-V compounds with Si through wafer bonding: III-V layers are grown lattice matched on GaAs or Ge and then bonded to Si, followed by substrate lift-off & re-use. The validity of the approach has been proven at Fraunhofer ISE with un-optimized GaInP/GaAs//Si triple-junction solar cells with >25% efficiency. This research project, relying on modeling and experimental work to optimize the cell structure (light trapping, bond interface quality, current matching, etc.), targets the significant breakthrough of a GaInP/GaAs//Si triple junction reaching >30% efficiency on large areas (>4cm2).

 Publications

year authors and title journal last update
List of publications.
2016 Felix Predan, Dirk Reinwand, Romain Cariou, Markus Niemeyer, Frank Dimroth
Direct wafer bonding of highly conductive GaSb/GaInAs and GaSb/GaInP heterojunctions prepared by argon-beam surface activation
published pages: 31103, ISSN: 0734-2101, DOI: 10.1116/1.4947118
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 34/3 2019-07-23
2017 Romain Cariou, Jan Benick, Paul Beutel, Nasser Razek, Christoph Flotgen, Martin Hermle, David Lackner, Stefan W. Glunz, Andreas W. Bett, Markus Wimplinger, Frank Dimroth
Monolithic Two-Terminal III–V//Si Triple-Junction Solar Cells With 30.2% Efficiency Under 1-Sun AM1.5g
published pages: 367-373, ISSN: 2156-3381, DOI: 10.1109/JPHOTOV.2016.2629840
IEEE Journal of Photovoltaics 7/1 2019-07-23

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