首页> 外文会议>European Photovoltaic Solar Energy Conference; 20060904-08; Dresden(DE) >CDS LAYER OPITEMIZATION FOR CUINS_2 SOLAR CELLS BASED ON COATED GLASS BEADS
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CDS LAYER OPITEMIZATION FOR CUINS_2 SOLAR CELLS BASED ON COATED GLASS BEADS

机译:基于涂层玻璃珠的CUINS_2太阳能电池的CDS层优化

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ECN developed a batch technology for the deposition of CdS layers on CuInS_2-coated glass beads. The CuInS_2 beads were further processed to solar cells in order to evaluate the Ⅳ-characteristics. In order to get acquainted with the deposition process beside of CuInS_2 glass beads also bare glass beads have been added to the deposition reaction. The CdS coatings are characterized by optical measurements and chemical dissolution of the layers; thereby focusing on the morphology, layer composition and layer thickness. The optical data were fitted using a thin film approach and calculating the effective CdS layer thickness on glass beads by using a simple approximation. A linear relationship was found between the thickness values determined by the optical and chemical method. Currently, the optical method gives the most probable results. For the layers a Cd/S ratio of 1,1 and a bandgap of 2.40 ± 0.03 eV were determined. It has been shown, that for the completed SUNRISE cells the measured Voc-values are directly related to the properties of the CdS layer on bare glass beads. A uniform and closed layer on glass beads delivers the highest (max. 573mV) and most reproducible Voc-values.
机译:ECN开发了一种批处理技术,用于在涂覆CuInS_2的玻璃珠上沉积CdS层。为了评估Ⅳ特性,将CuInS_2珠进一步加工成太阳能电池。为了熟悉CuInS_2玻璃珠之外的沉积工艺,还向裸露的玻璃珠添加了沉积反应。 CdS涂层的特征是光学测量和化学溶解。从而专注于形态,层组成和层厚度。使用薄膜方法拟合光学数据,并使用简单的近似值计算玻璃珠上的有效CdS层厚度。在通过光学和化学方法确定的厚度值之间发现线性关系。当前,光学方法给出了最可能的结果。对于这些层,确定的Cd / S比为1.1,带隙为2.40±0.03 eV。已经表明,对于完整的SUNRISE电池,测得的Voc值与裸玻璃珠上CdS层的性能直接相关。玻璃珠上均匀且封闭的层可提供最高(最大573mV)和最可再现的Voc值。

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