Inverted Three-Junction Tandem Thermophotovoltaic Modules

  • Magazine Article
  • TBMG-14838
Published October 01, 2012 by Tech Briefs Media Group in United States
Sector:
Language:
  • English

An InGaAs-based three-junction (3J) tandem thermophotovoltaic (TPV) cell has been investigated to utilize more of the blackbody spectrum (from a 1,100 °C general purpose heat source — GPHS) efficiently. The tandem consists of three vertically stacked subcells, a 0.74-eV InGaAs cell, a 0.6-eV InGaAs cell, and a 0.55-eV InGaAs cell, as well as two interconnecting tunnel junctions.