| Autor: |
Thomas C. Mood, Eric A. Armour, Scott Burroughs, James F. Carter, Brent Fisher, Matthew P. Lumb, Ziggy Pulwin, Matthew Meitl, Mitchell F. Bennett, Kenneth J. Schmieder, Laura B. Ruppalt, Nicole A. Kotulak, Martin Diaz |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 IEEE 46th Photovoltaic Specialists Conference (PVSC). |
| Popis: |
We have developed multijunction solar cells on both GaAs and InP platforms to split the solar spectrum efficiently among subcells that maintain lattice-match to their respective source substrates. The GaAs-based dual-junction solar cell has achieved 31% AM1.5D concentrator efficiency. The InP-based triple junction solar cell has achieved 8.7% AM1.5D efficiency under concentration. Using micro-transfer printing, the wide-bandgap GaAs-based subcells will be stacked on top of the narrow-gap InP-based subcells and characterized to determine 4-terminal AM1.5D efficiency of the five-junction device. The microcells, less than 200 μm on a side, are assembled on transparent glass substrates, permitting diffuse light transmission to be collected by a silicon backplane. The approach facilitates efficient collection of both direct and diffuse sunlight for potential applications in a wide variety of climates. Major milestones in III-V device development are detailed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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