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Concentrix solar's progress in developing highly efficient modules

: Riesen, S. van; Gombert, A.; Gerster, E.; Gerstmaier, T.; Jaus, J.; Eltermann, F.; Bett, A.W.

Volltext urn:nbn:de:0011-n-2086068 (97 KByte PDF)
MD5 Fingerprint: 411e270f7baa02f33eccc182aaf7a3aa
Erstellt am: 7.12.2012

Dimroth, F.:
7th International Conference on Concentrating Photovoltaic Systems 2011 : Las Vegas, Nevada, USA, 4-6 April 2011
Woodbury, N.Y.: AIP, 2012 (AIP Conference Proceedings 1407)
ISBN: 978-0-7354-0979-8
ISSN: 0094-243X
International Conference on Concentrating Photovoltaic Systems (CPV) <7, 2011, Las Vegas/Nev.>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
Materialien - Solarzellen und Technologie; III-V und Konzentrator-Photovoltaik; Alternative Photovoltaik-Technologien; Hochkonzentrierende Systeme (HCPV); Konzentratorsysteme

This paper presents the new module generation (CX-75-III), which was developed in an all-embracing cost optimization. The single primary lens was refined for optical efficiency and its size increased to 5.7×5.7cm 2, thus dramatically reducing the part count. Thermal simulations were used in order to dimension the heat spreader and ensure the reliability due to a low cell temperature. Furthermore, recent developments for cost optimization and high module efficiencies are presented. Results on prototype modules with a new heat spreader design, a new primary lens and also with refractive secondary optical elements are shown. The use of reflective secondaries has lead to an STC efficiency of 30.6%. Furthermore, different anti-reflection coatings have been examined in order to assess their impact on performance and reliability.