| Autor: |
Qi Xu, Yaping Ji, Krut, Dimitri D., Ermer, Jim H., Escarra, Matthew D. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 11/7/2016, Vol. 109 Issue 19, p193905-1-193905-4, 4p, 1 Diagram, 3 Graphs |
| Abstrakt: |
Transmissive concentrator multijunction (TCMJ) solar cells with over 47% in-band power conversion efficiency (PCE) have been designed and realized. These TCMJ solar cells have been characterized under 1 sun and concentrated 500 sun solar spectra, showing that the PCE for in-band light (photon energies above the cell's lowest bandgap) can reach up to 47.6% (29.5% for the full solar spectrum). Temperature coefficients of electrical parameters (Voc, Jsc, fill factor) have been derived from measurements within the temperature range of 20 °C-130 °C, showing linear variations versus temperature change. Optical measurements demonstrate that the cells show 76.5% solar-weighted optical transmission for the out-of-band light (photon energy below the cell's lowest bandgap). This TCMJ solar cell exhibits promising spectrum splitting capability, which has the potential for use in hybrid photovoltaic-solar thermal applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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