Wireless Photoelectrochemical Water Splitting Using Triple-Junction Solar Cell Protected by TiO2
| Autor: | Choongman Moon, Peter Christian Kjærgaard Vesborg, Ib Chorkendorff, Ole Hansen, Brian Seger |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Electrolysis of water business.industry Photoelectrochemistry Energy conversion efficiency General Engineering General Physics and Astronomy General Chemistry Electrical contacts law.invention General Energy law Solar cell Water splitting Optoelectronics Wireless General Materials Science SDG 7 - Affordable and Clean Energy business Hydrogen production |
| Zdroj: | Moon, C, Seger, B, Vesborg, P C K, Hansen, O & Chorkendorff, I 2020, ' Wireless Photoelectrochemical Water Splitting Using Triple-Junction Solar Cell Protected by TiO 2 ', Cell Reports Physical Science, vol. 1, no. 12, 100261 . https://doi.org/10.1016/j.xcrp.2020.100261 |
| ISSN: | 2666-3864 |
| DOI: | 10.1016/j.xcrp.2020.100261 |
| Popis: | Photoelectrochemical (PEC) water splitting devices replace electrical contacts in a solid-state solar cell with a solid/liquid junction to improve the solar-to-H2conversion efficiency and reduce system cost. The wireless configuration can fully use the advantage of the PEC by removing all electrical contacts; however, the wired configuration with the electrical contact on its back side has been widely studied to facilitate device characterization. In this study, a wireless PEC water splitting device made of a commercially available III-V triple-junction solar cell protected by transparent TiO2 is demonstrated with high efficiency and stability. The wireless device produces both H2 and O2 products in a stoichiometric ratio in 13% of solar-to-H2 conversion efficiency over ∼12 h, and the total amount of H2 product during the lifetime of the device reaches 51 mL/cm2 , which is the highest value reported from wireless PEC devices to the best of our knowledge. |
| Databáze: | OpenAIRE |
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