Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

Lioz Etgar; Guillaume Schuchardt; Daniele Costenaro; Fabio Carniato; Chiara Bisio; Shaik M. Zakeeruddin; Mohammad K. Nazeeruddin; Leonardo Marchese; Michael Graetzel

doi:10.1039/c3ta11436h

Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

Lioz Etgar, Guillaume Schuchardt, Daniele Costenaro, Fabio Carniato, Chiara Bisio, Shaik M. Zakeeruddin, Mohammad K. Nazeeruddin, Leonardo Marchese, Michael Graetzel

Dipartimento di Scienze e Innovazione Tecnologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

We prepared a quasi-solid electrolyte for dye-sensitized solar cells (DSSCs) that consist of ionic liquid and modified silica particles. Commercial bare silica F5 particles and modified silica F5 by NH₂ and NH ₃⁺ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH₂ modified silica particles giving an open circuit voltage (V_oc) of 815 mV, a short-circuit current (J_sc) of 11.23 mA cm^-2, and a fill factor (FF) of 0.75 corresponding to an overall power conversion efficiency of 7.04% at 100 mW cm^-2 AM 1.5. The modification of the silica particles by NH₂ groups increases the V_oc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.

Lingua originale	Inglese
pagine (da-a)	10142-10147
Numero di pagine	6
Rivista	Journal of Materials Chemistry A
Volume	1
Numero di pubblicazione	35
DOI	https://doi.org/10.1039/c3ta11436h
Stato di pubblicazione	Pubblicato - 21 set 2013

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title = "Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte",

abstract = "We prepared a quasi-solid electrolyte for dye-sensitized solar cells (DSSCs) that consist of ionic liquid and modified silica particles. Commercial bare silica F5 particles and modified silica F5 by NH2 and NH 3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (Voc) of 815 mV, a short-circuit current (Jsc) of 11.23 mA cm-2, and a fill factor (FF) of 0.75 corresponding to an overall power conversion efficiency of 7.04% at 100 mW cm-2 AM 1.5. The modification of the silica particles by NH2 groups increases the Voc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.",

author = "Lioz Etgar and Guillaume Schuchardt and Daniele Costenaro and Fabio Carniato and Chiara Bisio and Zakeeruddin, {Shaik M.} and Nazeeruddin, {Mohammad K.} and Leonardo Marchese and Michael Graetzel",

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doi = "10.1039/c3ta11436h",

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T1 - Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

AU - Etgar, Lioz

AU - Schuchardt, Guillaume

AU - Costenaro, Daniele

AU - Carniato, Fabio

AU - Bisio, Chiara

AU - Zakeeruddin, Shaik M.

AU - Nazeeruddin, Mohammad K.

AU - Marchese, Leonardo

AU - Graetzel, Michael

PY - 2013/9/21

Y1 - 2013/9/21

N2 - We prepared a quasi-solid electrolyte for dye-sensitized solar cells (DSSCs) that consist of ionic liquid and modified silica particles. Commercial bare silica F5 particles and modified silica F5 by NH2 and NH 3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (Voc) of 815 mV, a short-circuit current (Jsc) of 11.23 mA cm-2, and a fill factor (FF) of 0.75 corresponding to an overall power conversion efficiency of 7.04% at 100 mW cm-2 AM 1.5. The modification of the silica particles by NH2 groups increases the Voc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.

AB - We prepared a quasi-solid electrolyte for dye-sensitized solar cells (DSSCs) that consist of ionic liquid and modified silica particles. Commercial bare silica F5 particles and modified silica F5 by NH2 and NH 3+ groups were prepared, and fully characterized. The best photovoltaic performance was observed using the NH2 modified silica particles giving an open circuit voltage (Voc) of 815 mV, a short-circuit current (Jsc) of 11.23 mA cm-2, and a fill factor (FF) of 0.75 corresponding to an overall power conversion efficiency of 7.04% at 100 mW cm-2 AM 1.5. The modification of the silica particles by NH2 groups increases the Voc of DSSCs by around 60 mV compared to pure ionic liquid electrolyte based DSSCs.

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DO - 10.1039/c3ta11436h

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JF - Journal of Materials Chemistry A

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Enhancing the open circuit voltage of dye sensitized solar cells by surface engineering of silica particles in a gel electrolyte

Abstract

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