Linklater, D.P.; Haydous, F.; Xi, C.; Pergolesi, D.; Hu, J.; Ivanova, E.P.; Juodkazis, S.; Lippert, T.; Juodkazytė, J. Black-Si as a Photoelectrode. Nanomaterials 2020, 10, 873, doi:10.3390/nano10050873.
Linklater, D.P.; Haydous, F.; Xi, C.; Pergolesi, D.; Hu, J.; Ivanova, E.P.; Juodkazis, S.; Lippert, T.; Juodkazytė, J. Black-Si as a Photoelectrode. Nanomaterials 2020, 10, 873, doi:10.3390/nano10050873.
Linklater, D.P.; Haydous, F.; Xi, C.; Pergolesi, D.; Hu, J.; Ivanova, E.P.; Juodkazis, S.; Lippert, T.; Juodkazytė, J. Black-Si as a Photoelectrode. Nanomaterials 2020, 10, 873, doi:10.3390/nano10050873.
Linklater, D.P.; Haydous, F.; Xi, C.; Pergolesi, D.; Hu, J.; Ivanova, E.P.; Juodkazis, S.; Lippert, T.; Juodkazytė, J. Black-Si as a Photoelectrode. Nanomaterials 2020, 10, 873, doi:10.3390/nano10050873.
Abstract
The fabrication and characterisation of photo-anodes based on black-Si (b-Si) are presented using a photo-electrochemical cell in NaOH solution. Black-Si was fabricated by maskless dry plasma etching and was conformally coated by tens-of-nm of TiO2 using atomic layer deposition (ALD) with a top layer of CoOx cocatalyst deposited by pulsed laser deposition (PLD). Low reflectivity R < % of Black-Si over the entire visible and near-IR (λ < 2 µm) spectral range is favourable in better absorption of light while an increased surface area facilities larger current densities. Photoelectrochemical performance of the heterostructured photoanode is discussed in terms of n-n junction between b-Si and TiO2.
Keywords
black Si; antireflection; photo-anode; water splitting9
Subject
Chemistry and Materials Science, Electrochemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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