1. Low bandgap mid-infrared thermophotovoltaic arrays based on InAs
- Author
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Krier, Anthony, Yin, Min, Marshall, Andrew, Kesaria, Manoj, Krier, Susan, McDougall, S., Meredith, W., Johnson, A.D., Inskip, J., Scholes, A., Krier, Anthony, Yin, Min, Marshall, Andrew, Kesaria, Manoj, Krier, Susan, McDougall, S., Meredith, W., Johnson, A.D., Inskip, J., and Scholes, A.
- Abstract
We demonstrate the first low bandgap thermophotovoltaic (TPV) arrays capable of operating with heat sources at temperatures as low as 345 °C, which is the lowest ever reported. The individual array elements are based on narrow band gap InAs/InAs0.61Sb0.13P0.26 photodiode structures. External power conversion efficiency was measured to be ∼3% from a single element at room temperature, using a black body at 950 °C. Both 25-element and 65-element arrays were fabricated and exhibited a TPV response at different source temperatures in the range 345–950 °C suitable for electricity generation from waste heat and other applications.
- Published
- 2015