We quantify the strong dependence of photocurrent on the angle of incidence of light in a dye solar cell (DSC). Under laser illumination the photocurrent increases for large incidence angles. The enhancements are different upon using or not a coupling prism. They are explained with a model including three different angular factors. The observed enhancements up to 25% can be useful for evaluating novel designs of an efficient photon management in DSCs. Even an effective refractive index n(eff) approximate to 2.0 for the mesoporous titania/electrolyte phase was retrieved from the angle dependent photocurrent. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3328097]
Angular and prism coupling refractive enhancement in dye solar cells / Dominici, Lorenzo; Luigi, Vesce; Daniele, Colonna; Michelotti, Francesco; Thomas M., Brown; Andrea, Reale; Aldo Di, Carlo. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 96:10(2010), pp. 103302-103302-3. [10.1063/1.3328097]
Angular and prism coupling refractive enhancement in dye solar cells
DOMINICI, Lorenzo;MICHELOTTI, Francesco;
2010
Abstract
We quantify the strong dependence of photocurrent on the angle of incidence of light in a dye solar cell (DSC). Under laser illumination the photocurrent increases for large incidence angles. The enhancements are different upon using or not a coupling prism. They are explained with a model including three different angular factors. The observed enhancements up to 25% can be useful for evaluating novel designs of an efficient photon management in DSCs. Even an effective refractive index n(eff) approximate to 2.0 for the mesoporous titania/electrolyte phase was retrieved from the angle dependent photocurrent. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3328097]I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
