Flexible a-Si/muC-Si tandem modules in the Helianthos project

A. Gordijn, M.N. van den Donker, F. Finger, E.A.G. Hamers, G.J. Jongerden, W.M.M. Kessels, R. Bartl, A.M.B. Mol, van, J.K. Rath, B. Rech, R. Schlatmann, R.E.I. Schropp, B. Stannowski, H. Stiebig, M.C.M. Sanden, van de, R.A.C.M.M. Swaaij, van, M. Zeman

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)

Abstract

In order to reduce the costs of thin-film silicon solar cell production, a manufacturing concept in which amorphous silicon (a-Si) solar cells are produced in a roll-to-roll manner on a temporary metal substrate (temporary-superstrate process) has been introduced in the Helianthos Project. Later in the process the device is transferred to a permanent plastic substrate on which cells are monolithically series connected, resulting in PV modules. In the Helianthos pilot line, modules with efficiencies above 7% are obtained on 1-foot-wide foil. On 30times30 cm/sup 2/ modules, initial efficiencies of 5.7% have been reached, while 60 cm/sup 2/ modules cut from the 35 cm wide foil have reached stabilized efficiencies of 5.8%. Lab modules with the deposition of a-Si in a batch process on roll-to-roll deposited SnO/sub 2/, have reached stabilized efficiencies of 6.7%. In order to increase efficiency, amorphous/microcrystalline (a-Si/muc-Si) tandem solar cells have been implemented in the temporary-superstrate process to fabricate flexible, lightweight tandem modules with monolithic series integration. A first module with an aperture area efficiency of 8.6% has been presented earlier. At present, an initial aperture area efficiency of 9.4% has been reached on a 60 cm/sup 2/ module
Original languageEnglish
Title of host publicationConference record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion. Waikoloa, HI, USA. IEEE Electron Devices Soc. 7-12 May 2006
Place of PublicationPiscataway, NJ, USA
PublisherInstitute of Electrical and Electronics Engineers
Pages1716-1719
ISBN (Print)1-424-40016-3
DOIs
Publication statusPublished - 2006
Eventconference; WCPEC : IEEE World Conference on Photovoltaic Energy Conversion ; 4 (Waikoloa, Hawaii) : 2006.05.07-12 -
Duration: 1 Jan 2006 → …

Conference

Conferenceconference; WCPEC : IEEE World Conference on Photovoltaic Energy Conversion ; 4 (Waikoloa, Hawaii) : 2006.05.07-12
Period1/01/06 → …
OtherWCPEC : IEEE World Conference on Photovoltaic Energy Conversion ; 4 (Waikoloa, Hawaii) : 2006.05.07-12

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