TANDEM PHOTOVOLTAIC CELL AND METHOD USING THREE GLASS SUBSTRATE CONFIGURATION

摘要

A tandem photovoltaic cell device includes a lower cell configured for substantially independent operation of an upper cell The lower cell has a lower glass substrate matenal and a lower electrode layer made of a reflective material overlying the glass matenal, a lower absorber layer overlying the lower electrode layer, and includes a lower window layer overlying the lower absorber layer, a lower transparent conductive oxide layer overlying the lower window layer, and a optical coupling matenal comprising ethylene vinyl acetate overlying the lower transparent conductive oxide layer The upper cell has an intermediary glass substrate material, a first upper transparent conductor layer, an upper p type absorber layer; an upper n type window layer; a second upper transparent conductive oxide layer overlying the n type window layer, a optical coupling matenal comprising ethylene vinyl acetate, and an upper glass matenal overlying the upper transparent conductive oxide layer.