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Examples of electromagnetic energy harvesting devices for optical transfer. a) Silicon-based PV cells implanted in subretinal region which harvest energy from NIR light. Adapted with permission. [474] Copyright 2015, Springer Nature. b) GaInP/GaAs-based flexible PV arrays implanted in the subcutaneous region which harvest energy from sunlight. Adapted with permission.[489] Copyright 2016, Wiley-VCH.
