Heterojunction Band Offset Limitations on Open-Circuit Voltage in p-ZnTe/n-ZnSe Solar Cells
| Autor: | Teran, A., Chen, C., López, E., Linares, P.G., Artacho Huertas, Irene, Martí Vega, Antonio, Luque López, Antonio, Phillips, J.D. |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | IEEE Journal of Photovoltaics, ISSN 2156-3381, 2015, Vol. 5, No. 3 Archivo Digital UPM Universidad Politécnica de Madrid |
| Popis: | Limitations on the open-circuit voltage of p-ZnTe/n-ZnSe heterojunction solar cells are studied via current-voltage (I-V) measurements under solar concentration and at variable temperature. The open-circuit voltage reaches a maximum value of 1.95 V at 77 K and 199 suns. The open-circuit voltage shows good agreement with the calculated built-in potential of 2.00 V at 77 K. These results suggest that the open-circuit voltage is limited by heterojunction band offsets associated with the type-II heterojunction band lineup, rather than the bandgap energy of the ZnTe absorber material. |
| Databáze: | OpenAIRE |
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