An iodine-free electrolyte based on ionic liquid polymers for all-solid-state dye-sensitized solar cells

Wang, Guiqiang; Wang, Liang; Zhuo, Shuping; Fang, Shifeng; Lin, Yuan

doi:10.1039/c0cc04948d

Cited by 88 publications

(63 citation statements)

References 24 publications

(7 reference statements)

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“…Recently, it was reported I 2 -free solid state DSSCs based on a solid state polymerized ionic liquids, i.e., poly(1-alkyl-3-(acryloyloxy)hexylimidazolium iodide) and poly((1-(4-ethenylphenyl)methyl)-3-butylimidazodium iodide) that can sufficiently penetrate the TiO 2 nanopores. These devices exhibited cell efficiencies of 5.29 and 5.93%, respectively, with an excellent longterm stability of the devices [16,17]. Intrinsically, conducting polymers are well known as good hole transporting material, carrying current densities of several mA cm −2 .…”

Section: Construction and Performance Of Dye-sensitized Solar Cellmentioning

confidence: 97%

Recent advances in small molecular, non-polymeric organic hole transporting materials for solid-state DSSC

Bui

Goubard

2013

EPJ Photovolt.

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Issue from thin-film technologies, dye-sensitized solar cells have become one of the most promising technologies in the field of renewable energies. Their success is not only due to their low weight, the possibility of making large flexible surfaces, but also to their photovoltaic efficiency which are found to be more and more significant (>12% with a liquid electrolyte, >7% with a solid organic hole conductor). This short review highlights recent advances in the characteristics and use of low-molecular-weight glassforming organic materials as hole transporters in all solid-state dye-sensitized solar cells. These materials must feature specific physical and chemical properties that will ensure both the operation of a photovoltaic cell and the easy implementation. This review is an english extended version based on our recent article published in Matériaux & Techniques 101, 102 (2013). Construction and performance of dye-sensitized solar cellThe energy-scenario analysis in 2050 plans an increase until 300% of the world energy consumption. Such a need cannot be exclusively satisfied by the fossil fuels, humanity has to turn to renewable energies and notably towards the potentiality of solar energy. Photovoltaics is a promising renewable energy technology that converts sunlight to electricity, with broad potential to contribute significantly to solving the future energy problem that humanity faces. Historically, in 1954, Bell Labs created the first siliconbased solar cells with 6% efficiency [1]. To date, inorganic semiconductor solar cells dominate commercial markets, with crystalline Si having an 80% share; the remaining 20% is mostly thin film solar technology, such as CdTe and CuInGaSe [2]. However, the use of this conventional silicon involves a non-negligible production cost, in particular because of the silicon purification process to reach the solar-grade silicon. This cost strikingly reduces the competitiveness of these silicon cells compared with the traditional sources of energy for the ground applications.Since the last two decades, low-cost solutions have emerged mainly using thin-film solar photovoltaic technologies. Among them, a new type of cell, known as dyesensitized solar cells (DSSC) [3], has been studied to develop low-cost photovoltaic devices. In this type of cell, a e-mail: thanh-tuan.bui@u-cergy.fr b e-mail: fabrice.goubard@u-cergy.fr a light-harvesting material, generally a molecular dye absorbs photons and is photoexcited. The photogenerated electrons and holes from the dye are quickly separated and transferred into two different transporting media (metallic oxide and electrolyte) reducing strongly the electron-hole recombination in the absorber material. Moreover, the device is based on the superposition of active layers whose thicknesses are ten to twenty-folds inferior to that of crystalline silicon wafers. In addition, the requested purity of materials is 10 to 100 times less than for a silicon device.The DSSC is composed of a photo-anode and a photoinert counter electrode (ca...

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Section: Construction and Performance Of Dye-sensitized Solar Cellmentioning

confidence: 97%

Recent advances in small molecular, non-polymeric organic hole transporting materials for solid-state DSSC

Bui

Goubard

2013

EPJ Photovolt.

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“…In addition, quasi-solid-state iodine-free electrolytes were prepared based on the ionic liquid of DMPII and alkali salt of KI [21,22] as well as conducting polymers such as polyaniline [23] and polypyrrole [24] with ionic liquids. Wang et al reported on an all-solid-state iodine-free electrolyte based on ionic liquid polymers [25].…”

Section: Introductionmentioning

confidence: 99%

In-situ analyses of triiodide formation in an iodine-free electrolyte for dye-sensitized solar cells using electro-diffuse-reflection spectroscopy (EDRS)

Seo

Bialecka

Kang

et al. 2015

Journal of Power Sources

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“…Poly(IL) was successfully used for quasi-solid-state DSSCs, and the devices showed high power conversion efficiency and excellent longterm stability. 24,25 It is reported that addition of inorganic nanoparticles into the electrolytes is an effective way to improve the DSSC performance. 26 Lin et.…”

Section: Introductionmentioning

confidence: 99%

“…26 Proper surface modification could enhance the compatibility of inorganic nanomaterials and the ionic liquids in the preparation of the corresponding electrolyte for DSSCs. 25 Graphene oxide (GO) has much oxygen-containing functional groups such as hydroxyl, carboxylic acid, and can be easily chemical modification. [29][30][31] In our previous work, the DSSCs based on ionic liquid-tethered graphene oxide (IL-GO)/ionic liquid electrolytes were fabricated.…”

Section: Introductionmentioning

confidence: 99%

Poly(ionic liquid)/ionic liquid/graphene oxide composite quasi solid-state electrolytes for dye sensitized solar cells

et al. 2015

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Poly(ionic liquid)/ionic liquid/graphene oxide (poly(IL)/IL/GO) composite gel electrolytes containing poly(1-butyl-3vinylimidazolium bis(trifluoromethanesulfonyl) imide), 1-propyl-3-methylimidazolium iodide and graphene oxide are prepared for dye-sensitized solar cells (DSSCs), without any volatile organic solvent. The conductivity of the composite electrolyte is significantly increased by adding a proper amount of GO, and the DSSCs based on composite electrolytes containing GO show higher power conversion efficiency performance and better long-term stability compare to that without GO. The DSSC based on the composite electrolytes which containing 2 wt% of GO show an overall power conversion efficiency of 4.83% under simulated AM 1.5 solar spectrum irradiation. The superior long-term stability of the DSSCs indicates that this type of composite electrolytes could overcome the drawbacks of volatile liquid electrolytes, and offer a feasible method to fabricate DSSCs in future practical applications.

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An iodine-free electrolyte based on ionic liquid polymers for all-solid-state dye-sensitized solar cells

Abstract: An ionic liquid polymer, poly (1-alkyl-3-(acryloyloxy)hexylimidazolium iodide), was employed as an iodine-free electrolyte in all-solid-state dye-sensitized solar cells with an overall conversion efficiency of 5.29% under AM 1.5 simulated solar light (100 mW cm(-2)) illumination.

Cited by 88 publications

References 24 publications

Recent advances in small molecular, non-polymeric organic hole transporting materials for solid-state DSSC

Recent advances in small molecular, non-polymeric organic hole transporting materials for solid-state DSSC

In-situ analyses of triiodide formation in an iodine-free electrolyte for dye-sensitized solar cells using electro-diffuse-reflection spectroscopy (EDRS)

Poly(ionic liquid)/ionic liquid/graphene oxide composite quasi solid-state electrolytes for dye sensitized solar cells

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