{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Jiang T"],"funding":["Natural Science Foundation of Fujian Province (Fujian Provincial Natural Science Foundation)","National Natural Science Foundation of China (National Science Foundation of China)"],"pagination":["214"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12170895"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14(1)"],"pubmed_abstract":["Radio-photovoltaic cells (RPVCs) are able to offer high reliability and extended operational lifetimes, making them ideal for harsh-environment applications. However, the two-stage energy conversion process inherently limits energy conversion efficiency (ECE). This study presents a novel RPVC design based on a waveguide light concentration (WLC) scheme, employing multilayer-stacked GAGG:Ce scintillation waveguides alternately loaded with <sup>90</sup>Sr radioisotope sources. Electron beam irradiation tests revealed highly efficient radioluminescence (RL) emission from the edge surfaces of GAGG:Ce waveguide at electron energies exceeding 60 keV. A RPVC prototype incorporating 1.43 Ci of ⁹⁰Sr achieved a maximum output power (P<sub>max</sub>) of 48.9 μW, with an unprecedented ECE of 2.96%-the"],"journal":["Light, science & applications"],"pubmed_title":["High-efficiency &lt;sup&gt;90&lt;/sup&gt;Sr radio-photovoltaic cells based on waveguide light concentration structure."],"pmcid":["PMC12170895"],"funding_grant_id":["12175190","2022J02006"],"pubmed_authors":["Li X","Li S","Han L","San H","Jiang T","Zhang L","Yao W","Tang X"],"additional_accession":[]},"is_claimable":false,"name":"High-efficiency &lt;sup&gt;90&lt;/sup&gt;Sr radio-photovoltaic cells based on waveguide light concentration structure.","description":"Radio-photovoltaic cells (RPVCs) are able to offer high reliability and extended operational lifetimes, making them ideal for harsh-environment applications. However, the two-stage energy conversion process inherently limits energy conversion efficiency (ECE). This study presents a novel RPVC design based on a waveguide light concentration (WLC) scheme, employing multilayer-stacked GAGG:Ce scintillation waveguides alternately loaded with <sup>90</sup>Sr radioisotope sources. Electron beam irradiation tests revealed highly efficient radioluminescence (RL) emission from the edge surfaces of GAGG:Ce waveguide at electron energies exceeding 60 keV. A RPVC prototype incorporating 1.43 Ci of ⁹⁰Sr achieved a maximum output power (P<sub>max</sub>) of 48.9 μW, with an unprecedented ECE of 2.96%-the","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Jun","modification":"2025-07-26T03:07:24.784Z","creation":"2025-07-26T03:07:24.784Z"},"accession":"S-EPMC12170895","cross_references":{"pubmed":["40523882"],"doi":["10.1038/s41377-025-01875-1"]}}