Increasing the efficiency of fluorescent concentrator systems
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- 作者：Jan Christoph Goldschmidt ; Marius Peters ; Armin Bö ; sch ; Henning Helmers ; Frank Dimroth ; Stefan W. Glunz ; Gerhard Willeke
- 关键词：Solar concentrator ; Fluorescent concentrator ; Luminescent concentrator ; III/V ; Optics
- 刊名：Solar Energy Materials and Solar Cells
- 出版年：2009
- 出版时间：February 2009
- 年：2009
- 卷：93
- 期：2
- 页码：176-182
- 全文大小：931 K
文摘
This study examines concepts for increasing the efficiency of fluorescent concentrator systems. Different system sizes and configurations are investigated in detail by external quantum efficiency measurements, light-beam-induced current maps and by I–V measurements. A photonic structure that serves as a bandstop reflection filter for light emitted from dyes in the fluorescent concentrator increases the system efficiency relatively by 20 % . Such photonic structures are especially beneficial for larger systems. The combination of two fluorescent concentrators made with different dyes in one stack increases the system efficiency from 5.1 % with only one dye to 6.7 % for the stack.