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Chalcopyrite based thin film solar cells, upscaling for submodule production and fundamental studies for improved materials and devices

Objective

Chalcopyrite (Copper-Indium-Selenide) based solar cells are attracting great interest for large scale photovoltaic applications because of their good stability, high efficiency and potential for low cost. This project continues and extends the successful work performed by the EUROCIS group in the JOULE programme. The experience of the different groups participating provides an efficient basis for research on this complex material.

The scientific and technological objectives of the project were fully met, and they represent results with significant potential in a very innovative and promising field. Record values of efficiencies were achieved. Minimodules with substrate areas up to 100 cm2 were constructed with a series connection of up to 15 cells on a glass substrate. The aperture area efficiency for small modules reached 12.4%, while larger modules of 100 cm2 were more than 10% efficient. The project team made significant progress in understanding basic material and device properties, and using this knowledge could then fabricate solar cells using CIS with efficiencies of more than 17%.
In order to introduce this promising technology on a production level it is necessary to take the first steps in upscaling and also to evaluate the future potential of this material by fundamental studies. The work on CuInSe2 and related semiconductors is carried out along 2 lines : A) Upscaling the most advanced technologies resulting from the previous EUROCIS programme.
A minimodule with the dimensions 7x7 cm2 with a series connection of 6-8 cells on a glass substrate will be realized. In this part of the project, deposition processes on larger areas and patterning and interconnects will be studied. The goal is an aperture area efficiency of more than 10 %.

B) Fundamental study of alternative low cost deposition processes and studies of chalcopyrite based materials and devices.
This part of the programme is intended to provide scientific support to the module fabrication program and to develop alternative possibly more advantages processes. Furthermore new device designs and new, related materials are investigated. The goals of this part are the development of low cost deposition processes and evaluation of their feasibility. By investigating new device structures and materials, devices with an efficiency of more 16% will be realized.

Coordinator

European Renewable Energy Centers Agency - Eurec Agency EEIG
Address
75,Kapeldreef
3001 Heverlee
Belgium

Participants (12)

CENTER FOR SOLAR ENERGY AND HYDROGEN RESEARCH BADEN-WÜRTEMBERG
Germany
Address
Hessbruehlstrasse 21C
70565 Stuttgart
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
France
Address
Rue Pierre Et Marie Curie 11
75231 Paris
CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIAMBIENTALES Y TECNOLOGICAS
Spain
Address
Km.106,strada Nacional 111 Km.106
42290 Lubia-soria
Gesellschaft zur Förderung der Industrieorientierten Forschung an der Schweizerischen ETH
Switzerland
Address
30/1,Pfingstweidstraße / Technoparkstraße
8005 Zürich
ITALIAN AGENCY FOR NEW TECHNOLOGY, ENERGY AND THE ENVIRONMENT
Italy
Address
Via Angullarese 301
00060 Roma
Microchemistry Ltd.
Finland
Address
6,Keilaranta 6
02151 Espoo
ROYAL INSTITUTE OF TECHNOLOGY
Sweden
Address
79,Valhallavaegen 79
10044 Stockholm
UNIVERSITAET STUTTGART
Germany
Address
Pfaffenwaldring 47
70569 Stuttgart
Universidad Complutense de Madrid
Spain
Address
Cuidad Universitaria
28040 Madrid
Universiteit Gent
Belgium
Address
41,Sint-pietersnieuwstraat
9000 Gent
University of Northumbria at Newcastle
United Kingdom
Address
Ellison Place
NE1 8ST Newcastle Upon Tyne
Université de Montpellier II (Université des Sciences et Techniques du Languedoc)
France
Address
Place Eugène Bataillon
34095 Montpellier