19·9%-efficient ZnO/CdS/CuInGaSe2 solar cell with 81·2% fill factor
نویسندگان
چکیده
منابع مشابه
crystalline silicon solar cell engineering to improve fill factor, open circuit voltage, short circuit current and overall cell efficiency
design and optimization of a single crystalline silicon (c-si) solar cell is performed to achieve the maximum light conversion efficiency. various parameters such as doping concentration and thicknesses, and geometrical dimension of surface pyramids are studied. the inverted surface pyramid is used to increase the efficiency of the solar cell, and engineered oxide layer is used as the passivati...
متن کاملPolymer solar cells with enhanced fill factors
Recent advances in polymer solar cell (PSC) performance have resulted from compressing the bandgap to enhance the short-circuit current while lowering the highest occupied molecular orbital to increase the open-circuit voltage. Nevertheless, PSC power conversion efficiencies are still constrained by low fill factors, typically below 70%. Here, we report PSCs with exceptionally high fill factors...
متن کاملAccuracy of Expressions for the Fill Factor of a Solar Cell in Terms of Open- Circuit Voltage and Ideality Factor
An approximate expression proposed by Green predicts the maximum obtainable fill factor (FF) of a solar cell from its open-circuit voltage (Voc). The expression was originally suggested for silicon solar cells that behave according to a single-diode model and, in addition to Voc, it requires an ideality factor as input. It is now commonly applied to silicon cells by assuming a unity ideality fa...
متن کاملFill factor in organic solar cells can exceed the Shockley-Queisser limit
The ultimate efficiency of organic solar cells (OSC) is under active debate. The solar cell efficiency is calculated from the current-voltage characteristic as a product of the open-circuit voltage (VOC), short-circuit current (JSC), and the fill factor (FF). While the factors limiting VOC and JSC for OSC were extensively studied, the ultimate FF for OSC is scarcely explored. Using numerical dr...
متن کاملCompetition between recombination and extraction of free charges determines the fill factor of organic solar cells
Among the parameters that characterize a solar cell and define its power-conversion efficiency, the fill factor is the least well understood, making targeted improvements difficult. Here we quantify the competition between charge extraction and recombination by using a single parameter θ, and we demonstrate that this parameter is directly related to the fill factor of many different bulk-hetero...
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ژورنال
عنوان ژورنال: Progress in Photovoltaics: Research and Applications
سال: 2008
ISSN: 1062-7995
DOI: 10.1002/pip.822