Invention Application
US20100326522A1 PV MODULE AND WAVELENGTH CONVERSION TYPE LIGHT TRAPPING FILM FOR PV MODULE 审中-公开
光伏组件光伏模块和波长转换型光伏电池

  • Patent Title: PV MODULE AND WAVELENGTH CONVERSION TYPE LIGHT TRAPPING FILM FOR PV MODULE
  • Patent Title (中): 光伏组件光伏模块和波长转换型光伏电池
  • Application No.: US12526130
    Application Date: 2008-02-04
  • Publication No.: US20100326522A1
    Publication Date: 2010-12-30
  • Inventor: Kaoru Okaniwa
  • Applicant: Kaoru Okaniwa
  • Priority: JP2007-026676 20070206; JP2007-131730 20070517
  • International Application: PCT/JP2008/051773 WO 20080204
  • Main IPC: H01L31/04
  • IPC: H01L31/04 G02B1/00
PV MODULE AND WAVELENGTH CONVERSION TYPE LIGHT TRAPPING FILM FOR PV MODULE
Abstract:
A photovoltaic (PV) module in which electric power generation efficiency is enhanced by enhancing light utilization rate. A encapsulant (202) is a first layer, a wavelength conversion type light trapping film (300) is a second layer, an antireflection film (104) is a third layer and an n-type layer is a fourth layer. When the refractive indexed of the layers are expressed as first refractive index (n1), second refractive index (n2), third refractive index (n3) and fourth refractive index (n4), the following relation is satisfied; n1≦n2≦n3≦n4. The wavelength conversion type light trapping film (300) of the second layer has one structured surface on the light incident side and has a refractive index of 1.6-2.4. The wavelength conversion type light trapping film is transparent and contains a fluorescent substance.
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