Ge-Based Photovoltaic Laser-Power Converters

The Ge-based photovoltaic laser-power converters (LPCs) for wireless IR energy delivery approach with a wavelength of λ = 1550 nm are studied and developed. It is shown that the doping by diffusion from the gas phase with zinc gives rise to a notable increase in photosensitivity compared with the do...

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Bibliographic Details
Published in:IEEE journal of photovoltaics 2023-03, Vol.13 (2), p.1-6
Main Authors: Khvostikov, Vladimir P., Sorokina, Svetlana V., Khvostikova, Olga A., Nakhimovich, Mariia V., Shvarts, Z.
Format: Article
Language:English
Subjects:
Antimony
Diborane
Diffusion
Doping
efficiency
Flash lamps
Germanium
Junctions
Laser beams
laser radiation
Lighting
Phosphines
Photosensitivity
photovoltaic converter
Photovoltaic systems
Power converters
Radiation effects
Surface emitting lasers
Vapor phases
Zinc
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Summary:The Ge-based photovoltaic laser-power converters (LPCs) for wireless IR energy delivery approach with a wavelength of λ = 1550 nm are studied and developed. It is shown that the doping by diffusion from the gas phase with zinc gives rise to a notable increase in photosensitivity compared with the doping with diborane, phosphine, or antimony (including for two-stage diffusion technology). Four designs and areas of converters are fabricated and investigated under Xe flash lamp, defocused and focused laser beams. For LPCs with an area of 6.25 mm 2 , a monochromatic efficiency of ∼20% (0.2 W) is obtained at uniform irradiation.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2023.3237280