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During the past decades, much research was directed toward studying energy storage materials such as palladium. Such materials can store hydrogen like a sponge providing lightweight, high-density hydrogen sources that can be used for vehicles and mobile applications. In this paper, we make use of these lightweight storage materials for designing a solid-state negative hydrogen ion source that can be controlled by light. We propose a metasurface design of GaAs patches on a palladium substrate that releases hydrogen atoms and when excited with light, the electrons tunnel from the GaAs to the H atoms producing negative hydrogen ions. The mechanism of our device is modeled using a transfer matrix approach. This work provides for the first time the possibility of having a photo controlled solid-state negative hydrogen ion source that can impact both accelerator-based ion sources as well as energy storage applications.
Sara Kandil,Anna Alexander,Kevin Jensen,Prabhakar Bandaru,Daniel F. Sievenpiper, andNathan A. Moody
"Photo-controlled solid-state negative hydrogen ion source", Proc. SPIE PC11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI, PC119960H (1 April 2022); https://doi.org/10.1117/12.2607955
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Sara Kandil, Anna Alexander, Kevin Jensen, Prabhakar Bandaru, Daniel F. Sievenpiper, Nathan A. Moody, "Photo-controlled solid-state negative hydrogen ion source," Proc. SPIE PC11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI, PC119960H (1 April 2022); https://doi.org/10.1117/12.2607955