Rapid I−/I3− Diffusion in a Molecular‐Plastic‐Crystal Electrolyte for Potential Application in Solid‐State Photoelectrochemical Cells

Dai, Qing; MacFarlane, Douglas R.; Howlett, Patrick C.; Forsyth, Maria

doi:10.1002/ange.200460871

Cited by 23 publications

(17 citation statements)

References 27 publications

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“…At a room temperature, this compound electrolyte has a high conductivity of 3.3 mS/cm and fast ion transport of iodine and triiodine in its plastic phase of 3.7 Â 10 À6 and 2.2 Â 10 À6 cm 2 /Vs, respectively. The observed fast ion transport in this solid material can be seen as a decoupling of diffusion and shear relaxation times, which probably originates from local defect rotations in the succinonitrile plastic crystal [115][116][117]. Thus, this plastic electrolyte showed best high cell efficiency among other competing electrolyte materials.…”

Section: -Dimensional (3d) Titanium Dioxide (Tio 2 )mentioning

confidence: 84%

A New Generation of Energy Harvesting Devices

Lee¹,

Chang²

2021

Solar Cells - Theory, Materials and Recent Advances

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This chapter has been mainly focused on the development and fabrication of various nanostructured materials for electrochemical energy conversion, specially, third generation (3rd) thin film photovoltaic system such as organic dye or perovskite -sensitized Solar Cells. Enormous efforts have been dedicated to the development of a variety of clean energy, capable of harvesting energy of various forms. Among the various energy forms, electrochemical devices that produce electric energy from chemical energy have received the most attention as the most promising power sources. In the majority of cases, researchers who come from the different background could engage on certain aspects of the components to improve the photovoltaic performances from different disciplines: (i) chemists to design and synthesize suitable donor–acceptor dyes and study structure–property relationships; (ii) physicists to build solar cell devices with the novel materials, to characterize and optimize their performances, and to understand the fundamental photophysical processes; and (iii) engineers to develop new device architectures. The synergy between all the disciplines will play a major role for future advancements in this area. However, the simultaneous development of all components such as photosensitizers, hole transport layer, photoanodes and cost effective cathode, combined with further investigation of transport dynamics, will lead to Photovoltaic cells, 30%. Herein, in this book, with taking optimized processing recipe as the standard cell fabrication procedure, imporant breakthough for each components is achieved by developing or designing new materials, concepts, and fabrication technique. This book report the following studies: (i) a brief introduction of the working principle, (ii) the detailed study of the each component materials, mainly including TiO2 photoanode under the category of 0D and 3D structures, strategies for co-sensitization with porphyrin and organic photosensitizers, and carbon catalytic material via controlled fabrication protocols and fundamental understanding of the working principles of electrochemical photovoltaic cell has been gained by means of electrical and optical modelling and advanced characterization techniques and (iii) new desgined stratages such as the optimization of photon confinement (iv) future prospects and survival stratagies for sensitizer assisted solar cell (especially, DSSC).

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Section: -Dimensional (3d) Titanium Dioxide (Tio 2 )mentioning

confidence: 84%

A New Generation of Energy Harvesting Devices

Lee¹,

Chang²

2021

Solar Cells - Theory, Materials and Recent Advances

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“…20 The small drop in efficiency at 100% sun intensity may be due to mass transport limitations or inefficient charge screening of electron transport in the TiO 2 film. 11 Nevertheless, this is the first time such high efficiencies have been obtained in a porphyrin-sensitised solid state DSSC.…”

mentioning

confidence: 85%

“…Succinonitrile as a solid state electrolyte was previously investigated in dye sensitised solar cells by Wang et al, 10 and a power conversion efficiency of B5% was achieved at full sun with a ruthenium-based sensitiser. Dai et al 11 have shown high mobility of the iodide-triiodide redox couple in this molecular plastic crystal, thus prompting our interest in studying this type of plastic crystal-based electrolyte with porphyrin dyes. Furthermore, the physical properties of these materials -molten at accessible temperatures and malleable in their solid state -mean that these electrolytes should be mechanically printable and therefore suitable for the largescale assembly of DSSCs by reel-to-reel processing.…”

mentioning

confidence: 94%

Porphyrin dye-sensitised solar cells utilising a solid-state electrolyte

et al. 2011

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“…62 SSE was introduced in DSSC due to the ineffectiveness of liquid electrolytes involving solvent leakage and evaporation issues, which affects the large-scale production and long-term stability of DSSCs. 20,[63][64][65] Thus, developing a competent SSE with low cost is imperative, followed by a higher electrocatalytic activity, faster charge transportability, accessible synthesis, and costeffectiveness. 66 SSE can be classified into three main categories: (a) inorganic solid-state electrolyte, (b) composite polymer electrolyte and, (c) solid polymer electrolyte.…”

Section: Solid-state Electrolytementioning

confidence: 99%

Bio and non‐bio materials‐based quasi‐solid state electrolytes in DSSC : A review

Mahalingam

Nugroho

Floresyona

et al. 2021

Intl J of Energy Research

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Summary Dye‐sensitized solar cells (DSSCs) are more attractive than silicon solar cells due to their low dependency on light intensity so that they can perform both indoor and outdoor with low‐level lightings. DSSC's global revenue exceeded 16 million USD in 2014 for emerging portable charging, solar bags, and wireless keyboards. However, on‐grid DSSC modules are still under R&D for massive commercialization to improve their long‐term stability and safety issues due to the liquid electrolyte leakage. Therefore, quasi‐solid‐state electrolytes (QSE) have been proposed as a novel alternative to overcome the limitations stated above since 2001. Here, we deliver a short outline of the QSE properties, which are linked with the performance of DSSC in terms of different types of QSE structures: gel, hydrogel, and aerogel. Furthermore, these QSE structures are classified under bio and non‐bio materials. Finally, the impact, outlook, and future prospects of QSE‐DSSC are included as a conclusion in this review.

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Rapid I⁻/I₃⁻ Diffusion in a Molecular‐Plastic‐Crystal Electrolyte for Potential Application in Solid‐State Photoelectrochemical Cells

Cited by 23 publications

References 27 publications

A New Generation of Energy Harvesting Devices

A New Generation of Energy Harvesting Devices

Porphyrin dye-sensitised solar cells utilising a solid-state electrolyte

Bio and non‐bio materials‐based quasi‐solid state electrolytes in DSSC : A review

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