Luminescent (Er,Ho)2O3 thin films by ALD to enhance the performance of silicon solar cells

Amr Ghazy, Muhammad Safdar, Mika Lastusaari, Arto Aho, Antti Tukiainen, Hele Savin, Mircea Guina, Maarit Karppinen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We have fabricated luminescent (Er,Ho)2O3 thin films by atomic layer deposition (ALD) and studied their capability to enhance the performance of state-of-the-art single-junction c-Si bifacial solar cells. The films convert IR photons (e.g. 1523 nm) by three- and two-photon upconversion process to emit visible-light in the 400–700 nm range. When the films were coupled with solar cells, ~3% improvement in the short-circuit current density (620 ± 5 to 638 ± 5 mAcm−2) was recorded under a simulated solar excitation equivalent to 16 suns. These findings highlight a potential of ALD for the design and fabrication of luminescent coatings for practical solar cell devices.

Original languageEnglish
Article number110787
JournalSolar Energy Materials and Solar Cells
Volume219
DOIs
Publication statusPublished - Jan 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Atomic layer deposition
  • c-Si solar cell
  • Luminescence
  • Photonics
  • Upconversion

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  • Projects

    Photonics Research and Innovation

    Savin, H. & Mulbagal Rajanna, P.

    01/01/201931/12/2022

    Project: Academy of Finland: Other research funding

    Novel hybrid materials by ALD/MLD: from fundamentals towards applications

    Aleksandrova, I., Medina, E., Thomas, C., Karppinen, M., Haggren, A., Tiittanen, T., Multia, J., Ghazy, A., Mustonen, O., Khayyami, A., Revitzer, H., Sederholm, L., Johansson, L. & Madadi, M.

    01/09/201624/09/2020

    Project: Academy of Finland: Other research funding

    Molecular-Layer-Engineered Inorganic-Organic Hybrid Materials

    Hagen, D., Khayyami, A., Marin, G., Ghazy, A., Nisula, M., Johansson, L., Safdar, M., Krahl, F., Thomas, C., Medina, E., Tiittanen, T., Giedraityte, Z., Heiska, J., Lepikko, S., Karppinen, M., Haggren, A., Tripathi, T., Multia, J., Philip, A., Srivastava, D., Aleksandrova, I., Mustonen, O., Jin, H. & Ahvenniemi, E.

    23/12/201324/05/2019

    Project: EU: ERC grants

    Equipment

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