Mathematical analysis of the efficiency-concentration characteristic of a solar cell

✍ Scribed by E. Sánchez; G.L. Araújo

• Publisher: Elsevier Science
• Year: 1984
• Weight: 637 KB
• Volume: 12
• Category: Article
• ISSN: 0379-6787
• DOI: 10.1016/0379-6787(84)90106-6

✦ Synopsis

A new general method of calculating the efficiency-concentration characteristic (including the direct determination of the maximum efficiency point) of a solar cell is presented. The method is valid for any model which describes the dark current density-voltage characteristic of the cell, including the common single-exponential and double-exponential models. For the single-exponential model, two simpler methods are derived: (a) a parametric method, which is both exact and analytical, and (b) an approximate method which provides a schematic representation of the efficiencyconcentration characteristic and which can be extended to a doubleexponential model. On the basis of this second method, the influence of the internal parameters of the solar cell on its behaviour under concentrated sunlight is discussed.