论文信息 - Light-confining cavities for photovoltaic applications based on the angular-spatial limitation of the escaping beam.

Light-confining cavities for photovoltaic applications based on the angular-spatial limitation of the escaping beam.

Integrating spheres are proposed as light-confining cavities for enhancing the absorption of light by devices such as solar cells, and also for making photovoltaic converters with cells of several band gaps. A new concept for achieving this light confinement by angular restriction of the escaping of rays, which avoids the requirement of having a small entry aperture and therefore concentrations on it that are much higher than those required on the solar cells, is proposed here.

[1] Roland Winston,et al. Concentration of sunlight to solar-surface levels using non-imaging optics , 1989, Nature.

[2] S. Kurtz,et al. Recent advances in high efficiency GaInP/sub 2//GaAs tandem solar cells , 1990, IEEE Conference on Photovoltaic Specialists.

[3] V. S. Sundaram,et al. Over 35% efficient GaAs/GaSb stacked concentrator cell assemblies for terrestrial applications , 1990, IEEE Conference on Photovoltaic Specialists.

[4] R.M. Swanson,et al. Point-contact silicon solar cells , 1984, IEEE Transactions on Electron Devices.

[5] Roland Winston,et al. Approaching the irradiance of the sun through nonimaging optics , 1989 .

[6] W. T. Welford,et al. Ideal flux concentrators as shapes that do not disturb the geometrical vector flux field: A new derivation of the compound parabolic concentrator , 1979 .

[7] R. M. Swanson,et al. Increased photogeneration in thin silicon concentrator solar cells , 1987, IEEE Electron Device Letters.

[8] L. M. Magid,et al. Prospects and Opportunities in Photovoltaics , 1979 .

[9] W. Welford,et al. Geometrical vector flux and some new nonimaging concentrators , 1979 .

[10] G. L. Araújo,et al. EFFICIENCY OF SILICON AND GAAS CONCENTRATOR SOLAR CELLS OPERATED INSIDE INTEGRATING CAVITY RECEIVERS , 1991 .

[11] A. Luque. Theoretical bases of photovoltaic concentrators for extended light sources , 1981 .