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Article

Aluminum-Doped Zinc Oxide as Front Electrode for Rear Emitter Silicon Heterojunction Solar Cells with High Efficiency

1
Helmholtz-Zentrum Berlin für Materialien und Energie, Institute for Silicon Photovoltaics, Kekuléstraße 5, 12489 Berlin, Germany
2
PVcomB, Helmholtz-Zentrum Berlin für Materialien und Energie, Schwarzschildstr. 3, 12489 Berlin, Germany
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(5), 862; https://doi.org/10.3390/app9050862
Received: 21 December 2018 / Revised: 22 January 2019 / Accepted: 18 February 2019 / Published: 28 February 2019
(This article belongs to the Special Issue Next Generation Photovoltaic Solar Cells)
Transparent conductive oxide (TCO) layers of aluminum-doped zinc oxide (ZnO:Al) were investigated as a potential replacement of indium tin oxide (ITO) for the front contact in silicon heterojunction (SHJ) solar cells in the rear emitter configuration. It was found that ZnO:Al can be tuned to yield cell performance almost at the same level as ITO with a power conversion efficiency of 22.6% and 22.8%, respectively. The main reason for the slight underperformance of ZnO:Al compared to ITO was found to be a higher contact resistivity between this material and the silver grid on the front side. An entirely indium-free SHJ solar cell, replacing the ITO on the rear side by ZnO:Al as well, reached a power conversion efficiency of 22.5%. View Full-Text
Keywords: photovoltaics; silicon heterojunction; transparent conductive oxide; rear emitter photovoltaics; silicon heterojunction; transparent conductive oxide; rear emitter
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MDPI and ACS Style

Meza, D.; Cruz, A.; Morales-Vilches, A.B.; Korte, L.; Stannowski, B. Aluminum-Doped Zinc Oxide as Front Electrode for Rear Emitter Silicon Heterojunction Solar Cells with High Efficiency. Appl. Sci. 2019, 9, 862. https://doi.org/10.3390/app9050862

AMA Style

Meza D, Cruz A, Morales-Vilches AB, Korte L, Stannowski B. Aluminum-Doped Zinc Oxide as Front Electrode for Rear Emitter Silicon Heterojunction Solar Cells with High Efficiency. Applied Sciences. 2019; 9(5):862. https://doi.org/10.3390/app9050862

Chicago/Turabian Style

Meza, Daniel; Cruz, Alexandros; Morales-Vilches, Anna B.; Korte, Lars; Stannowski, Bernd. 2019. "Aluminum-Doped Zinc Oxide as Front Electrode for Rear Emitter Silicon Heterojunction Solar Cells with High Efficiency" Appl. Sci. 9, no. 5: 862. https://doi.org/10.3390/app9050862

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