Power generation characteristics of Si PV cell under extremely highintensity near-infrared light irradiation

Jingyi Zhou, Xing He, Toshiaki Kato, Kunta Yoshikawa, Hirohito Yamada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Power generation characteristics of a Si PV cell under extremely high optical power near-infrared irradiation were investigated for use in optical wireless power transmission. We used high power LED light sources with 730 nm, 850 nm and 940 nm wavelengths and a condensing optics to realize 10-sun level extremely high optical power irradiation in the measurements. More than 0.22 W electrical power was generated from a 1 cm square Si heterojunction PV cell under about 1 W/cm2optical power irradiation. This is more than 10 times the power generation density of conventional Si solar panels. Estimated power conversion efficiencies under 10-sun power level near-infrared irradiation exceeded 22.5%, which indicate a potential for high-power wireless transmission with Si PV cells using near-infrared light.

Original languageEnglish
Article number20210476
JournalIEICE Electronics Express
Volume19
Issue number3
DOIs
Publication statusPublished - 2022 Feb 10

Keywords

  • High optical power
  • Nearinfrared light
  • Optical wireless power transmission
  • Power generation characteristics
  • Si PV cell

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