Intrinsically Semitransparent Solar Cell And Method Of Controlling Transmitted Color Spectrum

摘要

A structural element is described to control the color of light transmitted and reflected from an intrinsically semitransparent photovoltaic cell and/or module for use with a PV window and methods for fabricating the same. Color control elements are described that will 1) control or shift the color spectrum of light transmitted through the PV window, 2) control or shift the color spectrum of light reflected from the outside of the window, and 3) control or shift the color spectrum of light reflected from the inside of the PV window.

主权项

1. A thin-film photovoltaic cell having an element for color control of the light transmitted through, or reflected from, a thin-film photovoltaic cell (PV) window that is intrinsically semitransparent that generates solar electricity and transmits visible light, the thin-film photovoltaic cell comprising:
a transparent substrate or superstrate layer, such as glass or polymer such as a polyimide; a transparent conducting layer, such as a transparent conducting oxide; a high electrical resistivity transparent layer; a semiconducting structure with one or more n-p junctions or one or more n-i-p junctions that absorb a wide range of light wavelengths and generate current and voltage (electrical power); and a transparent back contact (BC) structure that transmits visible light and conducts current; a color control element having selective absorbing and/or reflecting properties.