Toward ultrahigh-flux photovoltaic concentration Academic Article uri icon


  • We report experimental results with a miniature fiber-optic photovoltaic concentrator with (a) deliverable power density up to 10 4 10 suns (10 W/mm 2 ), (10 (b) solar cell efficiencies above 30%, (c) completely passive cooling, (d) uniform and individualized cell illumination, and (e) assembly from readily available components. Measurements include the sensitivity of the conversion efficiency of tandem III–V cells to (1) power input, (2) flux distribution, and (3) the modified spectrum from the fiber-optic concentrators. Our results augur favorably for the feasibility of such designs at concentration levels as high as thousands of suns.

publication date

  • January 1, 2004