- Conference date: 4–6 April 2011
- Location: Las Vegas, Nevada, (USA)
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 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.
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