Metal free sensitizer and catalyst for dye sensitized solar cells

Ahmad, Shahzada; Guillén, Elena; Kavan, Ladislav; Grätzel, Michaël; Nazeeruddin, Mohammad Khaja

doi:10.1039/c3ee41888j

Cited by 371 publications

(271 citation statements)

References 261 publications

Supporting

Mentioning

260

Contrasting

Unclassified

Order By: Relevance

“…For these reasons, this call for the development of new semiconductor having lower lying energy conduction band edge for endorsing fast electron transfer. A very recent in-depth review dedicated to metalfree sensitizers can be found in [131]. -Butyrolactone (GBL), propylene carbonate (PC), propionitrile (PN), sulfolane, butyronitrile (BN), or 3-methoxypropionitrile (MPN) had been proposed.…”

Section: Dye-sensitized Solar Cells Principle: Role and Progress In Tmentioning

confidence: 99%

A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells

Sauvage

2014

Advances in Chemistry

View full text Add to dashboard Cite

The purpose of this review is to gather the current background in materials development and provide the reader with an accurate image of today's knowledge regarding the stability of dye-sensitized solar cells. This contribution highlights the literature from the 1970s to the present day on nanostructured TiO 2 , dye, Pt counter electrode, and liquid electrolyte for which this review is focused on.

show abstract

Section: Dye-sensitized Solar Cells Principle: Role and Progress In Tmentioning

confidence: 99%

A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells

Sauvage

2014

Advances in Chemistry

View full text Add to dashboard Cite

show abstract

“…It is also worthwhile to stress here that our work also demonstrated that the main reason of the appreciable blue shift of the NEVPT2 absorption spectra is the SA-CASSCF definition of the zero order wavefunctions, which, as a matter of fact, represents the main limitation in the application of MRPT2 approaches to this kind of systems. In fact, to keep a satisfactory accuracy at perturbative level, a limited number of states (15)(16)(17)(18)(19)(20) has to be included in the average procedure. More importantly, the states with a nature different to that of the majority of the states considered in the state-averaged optimization, for instance, the ground state, are badly described and are then liable to be overcorrected by the second-order perturbation.…”

Section: Transition Metal Complexesmentioning

confidence: 99%

“…The presence of multiple solid/liquid active interfaces makes DSCs and DSPECs inherently complex systems, where the individual characteristics of catalysts, photosensitizers, and semiconductors, as well as the interfacial properties of the assembled photoelectrodes strongly interplay in determining the overall device efficiencies [16]. General guidelines to optimally design and combine the interface "players" (i.e., dyes [17][18][19][20][21]), metal oxides [22,23], electrolytes [24,25], and catalysts [26][27][28][29]) are derived from simple considerations on the material's structural, redox, and optical properties [30][31][32][33]. In addition to the optimization of standalone components, however, optimizing the energy level matching, the morphology, and the optical properties of the functionalized interface is crucial to boost the device efficiency [34][35][36][37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

First Principle Modelling of Materials and Processes in Dye-Sensitized Photoanodes for Solar Energy and Solar Fuels

Pastore

2017

Computation

View full text Add to dashboard Cite

Abstract:In the context of solar energy exploitation, dye-sensitized solar cells and dye-sensitized photoelectrosynthetic cells offer the promise of low-cost sunlight conversion and storage, respectively. In this perspective we discuss the main successes and limitations of modern computational methodologies, ranging from hybrid and long-range corrected density functionals, GW approaches and multi-reference perturbation theories, in describing the electronic and optical properties of isolated components and complex interfaces relevant to these devices. While computational modelling has had a crucial role in the development of the dye-sensitized solar cells technology, the theoretical characterization of the interface structure and interfacial processes in water splitting devices is still at its infancy, especially concerning the electron and hole transfer phenomena. Quantitative analysis of interfacial charge separation and recombination reactions in multiple metal-oxide/dye/catalyst heterointerfaces, thus, undoubtedly represents the compelling challenge in the field of modern computational material science.

show abstract

“…High catalytic active platinized fluorine-doped tin oxide (FTO) is the most commonly used CE in DSCs. However, the high cost of scarce Pt limits the large-scale fabrication and application of DSCs, which promotes the exploration of Pt-free CEs [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

NH3-treated WO3 as low-cost and efficient counter electrode for dye-sensitized solar cells

Song¹,

Chen²,

Cui³

et al. 2016

Nano Online

View full text Add to dashboard Cite

A novel low-cost and efficient counter electrode (CE) was obtained by treating catalytic inert tungsten trioxide (WO 3 ) nanomaterial in NH 3 atmosphere at elevated temperatures. The formation of tungsten oxynitride from WO 3 after NH 3 treatment, as evidenced by X-ray photoelectron spectroscopy and X-ray diffraction, increases the catalytic activity of the CE. Correspondingly, the power conversion efficiency (PCE) of the DSC is significantly increased from 0.9% for pristine WO 3 CE to 5.9% for NH 3 -treated WO 3 CE. The photovoltaic performance of DSC using NH 3 -treated WO 3 CE is comparable to that of DSC using standard Pt CE (with a PCE of 6.0%). In addition, it is also shown that NH 3 treatment is more efficient than H 2 or N 2 treatment in enhancing the catalytic performance of WO 3 CE. This work highlights the potential of NH 3 -treated WO 3 for the application in DSCs and provides a facile method to get highly efficient and low-cost CEs from catalytic inert metal oxides.

show abstract

Metal free sensitizer and catalyst for dye sensitized solar cells

Cited by 371 publications

References 261 publications

A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells

A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells

First Principle Modelling of Materials and Processes in Dye-Sensitized Photoanodes for Solar Energy and Solar Fuels

NH3-treated WO3 as low-cost and efficient counter electrode for dye-sensitized solar cells

Contact Info

Product

Resources

About