Enhancing photocatalytic efficiency through spin-polarized semiconductor materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00641438" target="_blank" >RIV/68378271:_____/24:00641438 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Enhancing photocatalytic efficiency through spin-polarized semiconductor materials

Original language description

Recently, there has been growing interest in whether magnetic semiconductor catalysts can enhance their catalytic efficiency through the application of magnetic fields. The key to developing such materials lies not in the magnitude of their magnetism but in whether doping or defect engineering can induce spin-polarized energy bands in the semiconductor. If spin-polarized energy bands can be created, it opens the possibility of using magnetic fields to control spin and, consequently, the absorption of light or the transition of photoelectrons. This has potential applications in spintronic optoelectronic devices or photocatalysts. Our work begins with ZnO nanowires, studying the effects of surface modification or doping with Co layers on their spin-polarized energy bands [2]. We apply this understanding to enhance photocatalytic efficiency under magnetic fields. Similarly, we have demonstrated that doping manganese cations (Mn2+) into CsPbBr3 halide perovskite nanoplates can significantly boost photocatalytic CO2 reduction reaction efficiencies when an external magnetic field is applied, attributed to the creation of spin-polarized electrons after Mn doping. Our results show that manipulating spin-polarized electrons in photocatalytic semiconductors is an effective strategy to enhance photocatalytic efficiencies. This approach has the potential to bring new opportunities in future for optoelectronic, energy, and biomedical applications through the spin polarization engineering of semiconductor energy bands.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GC24-10607J" target="_blank" >GC24-10607J: Spin polarized zinc oxide nanostructures</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů