On the basis of a simple energy-cost model, we estimate that photovoltaic (PV) concentrator systems will require sunlight concentration ratios in the hundreds in order to meet the cost goals for large-scale power generation. We address the design requirements, presented by these high concentrations, for cells and packaged-cell devices to meet the heat transfer needs, to achieve acceptable electrical and optical losses, and to provide mechanical stability against environmentally induced stresses. Ohmic and optical loss considerations provide a basis for contact grid design. Heat transfer and mechanical stability considerations help define cell-package design options and can present conflicting requirements which may require trade-off evaluations.
J. A. Cape,
L. M. Fraas,
P. S. McLeod,
L. D. Partain,
"Device Aspects Of Concentrator Technologies", Proc. SPIE 0543, Photovoltaics, (9 May 1985); doi: 10.1117/12.948197; https://doi.org/10.1117/12.948197