Nanoscale microfibrillated cellulose (NMFC) was introduced into a light-cured polymeric matrix to result in a green, cheap, and highly efficient quasi-solid electrolyte for the next-generation of bio-based dye-sensitized solar cells. The effect of NMFC on the photovoltaic parameters and performance of the resulting photo-electrochemical cells was thoroughly investigated, and a noticeable increase in both the photocurrent (due to optical phenomena) and the photovoltage (through a shielding effect on the recombination reactions) was demonstrated. Upon thorough optimization of the amount of NMFC introduced into the polymeric network, sunlight conversion efficiencies as high as 7.03 and 8.25 % were achieved at simulated light intensities of 1.0 and 0.4 sun, respectively. Furthermore and outstandingly, the addition of NMFC positively affected the long-term stability of the device, which was able to retain >95 % of its initial efficiency after 500 h of extreme aging conditions.

Structure–Performance Correlation of Nanocellulose-Based Polymer Electrolytes for Efficient Quasi-solid DSSCs / Chiappone, Annalisa; Bella, Federico; Nair, JIJEESH RAVI; Meligrana, Giuseppina; Bongiovanni, Roberta Maria; Gerbaldi, Claudio. - In: CHEMELECTROCHEM. - ISSN 2196-0216. - STAMPA. - 1:8(2014), pp. 1350-1358. [10.1002/celc.201402051]

Structure–Performance Correlation of Nanocellulose-Based Polymer Electrolytes for Efficient Quasi-solid DSSCs

CHIAPPONE, ANNALISA;BELLA, FEDERICO;NAIR, JIJEESH RAVI;MELIGRANA, Giuseppina;BONGIOVANNI, Roberta Maria;GERBALDI, CLAUDIO
2014

Abstract

Nanoscale microfibrillated cellulose (NMFC) was introduced into a light-cured polymeric matrix to result in a green, cheap, and highly efficient quasi-solid electrolyte for the next-generation of bio-based dye-sensitized solar cells. The effect of NMFC on the photovoltaic parameters and performance of the resulting photo-electrochemical cells was thoroughly investigated, and a noticeable increase in both the photocurrent (due to optical phenomena) and the photovoltage (through a shielding effect on the recombination reactions) was demonstrated. Upon thorough optimization of the amount of NMFC introduced into the polymeric network, sunlight conversion efficiencies as high as 7.03 and 8.25 % were achieved at simulated light intensities of 1.0 and 0.4 sun, respectively. Furthermore and outstandingly, the addition of NMFC positively affected the long-term stability of the device, which was able to retain >95 % of its initial efficiency after 500 h of extreme aging conditions.
2014
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2563356
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