• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Next generation technologies for solar energy conversion VIII >Volume holographic lens spectrum-splitting photovoltaic system for high energy yield with direct and diffuse solar illumination
【24h】

Volume holographic lens spectrum-splitting photovoltaic system for high energy yield with direct and diffuse solar illumination

机译：体积全息透镜分光光伏系统，用于直接和漫射太阳光下的高能量产出

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper a prototype spectrum-splitting photovoltaic system based on volume holographic lenses (VHL) is designed, fabricated and tested. In spectrum-splitting systems, incident sunlight is divided in spectral bands for optimal conversion by a set of single-junction PV cells that are laterally separated. The VHL spectrum-splitting system in this paper has a form factor similar to conventional silicon PV modules but with higher efficiencies (>30%). Unlike many other spectrum-splitting systems that have been proposed in the past, the system in this work converts both direct and diffuse sunlight while using inexpensive 1-axis tracking systems. The VHL system uses holographic lenses that focus light at a transition wavelength to the boundary between two PV cells. Longer wavelength light is dispersed to the narrow bandgap cell and shorter wavelength light to the wide bandgap cell. A prototype system is designed with silicon and GaAs PV cells. The holographic lenses are fabricated in Covestro Bayfol HX photopolymer by 'stitching' together lens segments through sequential masked exposures. The PV cells and holographic lenses were characterized and the data was used in a raytrace simulation and predicts an improvement in total power output of 15.2% compared to a non-spectrum-splitting reference. A laboratory measurement yielded an improvement in power output of 8.5%.
机译：本文设计，制造和测试了基于体全息透镜（VHL）的光谱分离光伏系统原型。在光谱分离系统中，入射光被一组横向分开的单结PV电池分成多个光谱带，以实现最佳转换。本文中的VHL光谱分离系统具有与常规硅PV组件相似的外形尺寸，但效率更高（> 30％）。与过去提出的许多其他光谱分离系统不同，该系统在使用便宜的1轴跟踪系统的同时转换了直接和漫反射的阳光。 VHL系统使用全息透镜，该透镜在过渡波长处将光聚焦到两个PV电池之间的边界。较长波长的光分散到窄带隙单元，而较短波长的光分散到宽带隙单元。设计了具有硅和GaAs光伏电池的原型系统。全息透​​镜是通过在科思创Bayfol HX光敏聚合物中通过顺序掩膜曝光将透镜段“缝合”在一起而制成的。对PV电池和全息透镜进行了表征，并将该数据用于光线跟踪仿真中，并预测与非分光参考相比，总输出功率可提高15.2％。实验室测量结果表明，功率输出提高了8.5％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号