Handbook of Photovoltaic Science and Engineering

This is a history of the development of the high efficiency multijunction solar cell from the perspective of one of the pioneers. The significant historical events were: 1.) First theoretical description of the InGaP/GaInAs/Ge cell predicting 40% at 300 suns concentration by Fraas & Knetchli (1978). 2.) First 35% efficient GaAs/GaSb dual junction cell demonstrated by Fraas et al (1989). 3.) First 40% efficient InGaP/GaInAs/Ge cell demonstrated by RR King et al (2006). 4.) First 33% efficient concentrated solar module demonstrated by Fraas et al (2006).

This is a history of the development of the high efficiency multijunction solar cell from the perspective of one of the pioneers. The significant historical events were: 1.) First theoretical description of the InGaP/GaInAs/Ge cell predicting 40% at 300 suns concentration by Fraas & Knetchli (1978). 2.) First 35% efficient GaAs/GaSb dual junction cell demonstrated by Fraas et al (1989). 3.) First 40% efficient InGaP/GaInAs/Ge cell demonstrated by RR King et al (2006). 4.) First 33% efficient concentrated solar module demonstrated by Fraas et al (2006).

Progress in Photovoltaics: Research and Applications, 2004

Acta Astronautica, 1991

Solar power systems for Industriallzation of space and future other advanced mlsslons must face tremendous challenges. Thls concerns mainly energy conversion efficiency and weight. Based on the utilization of GaAs and related III-V compound semiconductors, recent breakthroughs in the solar cell efficiency promote the photovoltaic option as a serious candidate. Thls paper reviews the present state of research In thls field, showing a strong increasing effort in the action on hlgh efficiency tandem cells. After a rapid description of the multispectral concept, mainly focused on the estimate of the achievable practical efficiency limit, recent published data are presented : In the case of GaAs-based tandem photovoltalc structures, efficiency values In the range of 30% have been obtained in space solar simulators, exhibiting a substantial improvement of the energy conversion performance under concentration. The utilization of photovoltaic concentrators In solar power systems Is briefly discussed. Alternatively, a cost-competitive use of III-V multlspectral cells In planar array modules IS shown to be possible in the future, thanks to progress in the deposition of these materials on low cost light substrates. The expected future industrialization of space requires appropriate hlgh power energy sources. It Is now commonly accepted that photovoltalcs Is the winner at short and middle term on all fronts up to the 100 kW range In earth or near earth orbit. Probably, this might also be true at very long term on a tremendous scale If the SPS project (Space Power System) comes into being.

Solar Cells, 1988

Power conversion efficiencies as high as 16.5% under 1 Sun, air mass 1.5 (AM 1.5) illumination have been obtained for three-terminal, two-junction 1.72 eV A1GaAs/1.15 eV GaInAs monolithic cascade solar cells. The structures were grown by metal-organic chemical vapor deposition. The increased efficiencies arise primarily from improved surface morphology in this lattice-mismatched materials system. For the individual subcells in a cascade configuratiori, 1 Sun, AM 1.5 efficiencies as high as 10.4% and 15.3% are obtained for 1.15 eV GaInAs and 1.72 eV A1GaAs, projecting an eventual efficiency of 25.7% for the corresponding two-junction stack. Under 400 Sun concentration, these values are projected to increase to 12%, 19% and 31% respectively.

Progress in Photovoltaics: Research and Applications, 1993

regular feature of 'Progress in Photouoltaics' is the publication of solar cell and module efficiency tables summarizing the highest independently confirmed results for a range of technologies. The

Progress in Photovoltaics, 2022

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since January 2022 are reviewed. An appendix describing temporary electrical contacting of large‐area solar cells approaches and terminology is also included.

Progress in Photovoltaics: Research and Applications, 2005

Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined and new entries since June 2004 are reviewed.

Photovoltaics, now a billion-dollar industry, is experiencing staggering growth as increased concerns over fuel supply and carbon emissions have encouraged governments and environmentalists to become increasingly prepared to offset the extra cost of solar energy.

Progress in Photovoltaics Research and Applications, 1998