alpha-induced radio-luminescent energy conversion in scintillating materials

Marc S. Litz; Vijay Parameshwaran; John D. Demaree; LeighAnn S. Larkin; Michael Wraback

doi:10.1117/12.3013784

10 June 2024 alpha-induced radio-luminescent energy conversion in scintillating materials

Marc S. Litz, Vijay Parameshwaran, John D. Demaree, LeighAnn S. Larkin, Michael Wraback

Author Affiliations +

Proceedings Volume PC13027, Energy Harvesting and Storage: Materials, Devices, and Applications XIV; PC1302706 (2024) https://doi.org/10.1117/12.3013784
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Decaying alpha particles exposing scintillating materials attached to photovoltaic (PV) energy converters constitute a long-lived, compact α-photovoltaic (APV) power source. A literature review of scintillating materials subsequently ranked by AMU, melting point, and defect creation were tabulated. Numerical modelling and experimental evaluations were performed measuring the parameters of luminosity and luminous degradation. The electrical power output measured from PV collecting the luminescent photons was compared to the input kinetic energy of the 𝛼-source to calculate the net system power efficiency. CsI scintillators affixed to InGaP PV produced the highest α-induced luminosity (2200 ph/MeV) and largest ion fluence (10^16) before net system power degraded to 10% of beginning of life (BOL).

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Marc S. Litz, Vijay Parameshwaran, John D. Demaree, LeighAnn S. Larkin, and Michael Wraback "alpha-induced radio-luminescent energy conversion in scintillating materials", Proc. SPIE PC13027, Energy Harvesting and Storage: Materials, Devices, and Applications XIV, PC1302706 (10 June 2024); https://doi.org/10.1117/12.3013784

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KEYWORDS

Photovoltaics

Scintillators

Solar cells

Indium gallium phosphide

Solar energy

Zinc sulfide

Photovoltaic materials

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