Toward quasi-solid state Dye-sensitized Solar Cells: Effect of γ-Al 2 O 3 nanoparticle dispersion into liquid electrolyte

Sacco, Adriano; Lamberti, Andrea; Gerosa, Matteo; Bisio, Chiara; Gatti, Giorgio; Carniato, Fabio; Shahzad, Nadia; Chiodoni, Angelica; Tresso, Elena Maria; Marchese, Leonardo

doi:10.1016/j.solener.2014.10.034

Cited by 25 publications

(11 citation statements)

References 39 publications

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“…It was reported that partial recovery of DSSCs with poly(vinylidene uoride) electrolyte could be achieved with tailored voltage pulses . In addition, quasi‐solid state DSSCs exhibit better stability compared to liquid electrolyte cells in particular under accelerated aging tests (light‐soaking, elevated temperature) . However, their efficiency is lower compared to the liquid electrolyte cells .…”

Section: Degradation and Stability Issues Of Dsscsmentioning

confidence: 99%

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Stability issues of the next generation solar cells

Djurišić

Liu

et al. 2016

Phys. Status Solidi RRL

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Polymer, perovskite, and dye‐sensitized solar cells (DSSCs) are promising technologies for next generation low cost photovoltaic cells. Among these, perovskite solar cells are the newest technology and have the highest efficiency, while DSSCs are closest to commercialization with several companies producing the DSSC materials and modules and existing DSSC installations. However, all three types of solar cells share a concern about lifetime and stability. For each type of devices, there are specific concerns and degradation mechanisms, and all of the devices require encapsulation and exhibit varying degrees of sensitivity to moisture, oxygen, elevated temperature and UV illumination depending on the device structure and materials used. We are discussing the stability and lifetime for each type of cells and future outlook of these technologies. (© 2016 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)

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Section: Degradation and Stability Issues Of Dsscsmentioning

confidence: 99%

“…However, their efficiency is lower compared to the liquid electrolyte cells . Different types of electrolytes can be used in quasi‐solid state DSSCs, but one simple method to prepare quasi‐solid electrolyte is to add nanoparticles such as alumina . Polymers can also be used for electrolyte gelation .…”

Section: Degradation and Stability Issues Of Dsscsmentioning

confidence: 99%

Stability issues of the next generation solar cells

Djurišić

Liu

et al. 2016

Phys. Status Solidi RRL

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“…Quasi-solid electrolytes are usually 50 obtained by gelling a liquid solution containing the redox mediator and several additives. The 51 gelation is achieved by using functionalized inorganic nanoparticles [28], gelling agents [29] or 52 polymeric matrices [30]. Among all, polymers are the best choice, due to their low cost, wide 53 availability, absence of phase separation phenomena over time and high sunlight-to-electricity 54 conversion efficiency [31,32].…”

Section: Introductionmentioning

confidence: 99%

Dispelling clichés at the nanoscale: the true effect of polymer electrolytes on the performance of dye-sensitized solar cells

et al. 2015

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In the field of dye-sensitized solar cells, polymer electrolytes are among the most studied materials due to their ability to ensure both high efficiency and stability, the latter being a critical point of these devices. Hundreds of polymeric matrices have been proposed over the years, and their functionalization with several groups, the variation of their molecular weight and the tuning of the crosslinking degree have been investigated. However, the true effect that polymeric matrices have on the cell parameters has often been addressed superficially, and hundreds of papers justify the obtained results with a simple bibliographic reference to other systems (sometimes completely different). This work proposes a system of nanoscale growth and crosslinking of a polymer electrolyte inside a nanostructured photoanode. Electrochemical and photovoltaic parameters are carefully monitored as a function of thickness and degree of penetration of the electrolyte. The results derived from this study refute many clichés generally accepted and taken for granted in many literature articles, and – for the first time – a compromise between the amount of polymer, cell efficiency and stability is achieved.

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“…Among these polymers, PVDF-HFP results in high-performance, highly stable cells in light-soaking tests. As an alternative method, nanoclay [20,21], SiO 2 [22][23][24], Al 2 O 3 [25] carbon nanotube [26,27], graphene [28] and graphene oxide [29] have been applied for electrolyte gelation. Generally, dye solar cells with gel electrolytes suffer from lower efficiency compared with liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, dye solar cells with gel electrolytes suffer from lower efficiency compared with liquid electrolytes. There are reports on how the additives can make gel electrolytes as efficient as liquid electrolytes; however, they need additional synthesis process [16,[21][22][23][24][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Stable dye-sensitized solar cells based on a gel electrolyte with ethyl cellulose as the gelator

Vasei¹,

Tajabadi

Jabbari³

et al. 2015

Appl. Phys. A

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A simple gelating process is developed for the conventional acetonitrile-based electrolyte of dye solar cells, based on ethyl cellulose as the gelator. The electrolyte becomes quasi-solid-state upon addition of an ethanolic solution of ethyl cellulose to the conventional acetonitrile-based liquid electrolyte. The photovoltaic conversion efficiency with the new gel electrolyte is only slightly lower than with the liquid electrolyte, e.g., 6.5 % for liquid electrolyte versus 5.9 % for gel electrolyte with 5.8 wt% added ethyl cellulose. Electrolyte gelation has small effect on the ionic diffusion coefficient of iodide, and the devices are remarkably stable for at least 550 h under irradiation at 55°C.

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Toward quasi-solid state Dye-sensitized Solar Cells: Effect of γ-Al 2 O 3 nanoparticle dispersion into liquid electrolyte

Cited by 25 publications

References 39 publications

Stability issues of the next generation solar cells

Stability issues of the next generation solar cells

Dispelling clichés at the nanoscale: the true effect of polymer electrolytes on the performance of dye-sensitized solar cells

Stable dye-sensitized solar cells based on a gel electrolyte with ethyl cellulose as the gelator

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