Preparation of a working electrode with a conducting PEDOT:PSS film and its applications in a dye-sensitized solar cell

Chou, Chuen‐Shii; Chou, Chuen-Shyong; Kuo, Yi-Ting; Wang, Chun-Po

doi:10.1016/j.apt.2012.08.006

Cited by 18 publications

(8 citation statements)

References 30 publications

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“…S1 † revealed that the weight percentage of C was almost identical, which means that the amount of PEDOT:PSS on the surface was approximately equal. 18,19 On the other hand, the weight percentage of Na in the PEDOT:PSS lm decreased signicantly from 3.28% to almost 0%. Similarly, it was found that the Na (1s) peak from XPS analysis was also substantially smaller ( Fig.…”

Section: Analysis Of Sodium Ion Contentmentioning

confidence: 99%

Influence of residual sodium ions on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)

Cho

Kim

et al. 2018

RSC Adv.

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Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a promising conducting polymer in terms of its applicability to transparent and flexible electronic devices. Generally, a negatively charged PSS chain can interact with alkali metal cations like sodium and potassium. During polymerization, these ions, especially sodium ions, remain in an aqueous state and affect particle formation. This paper describes the effect of residual sodium ions on the synthesis of PEDOT:PSS and its electrical and optical properties. Removing the sodium ions weakens the coulombic interaction between the PEDOT and PSS chains, which leads to a linear conformation. This conformational change enhances the electrical conductivity and work function. Furthermore, transmittance in the visible region increased remarkably because the intrinsic electrical properties of the PEDOT:PSS particles were improved. Moreover, the colloidal stability was enhanced because the particle coagulation caused by residual sodium ions was reduced. In summary, we determined that sodium ions in PEDOT:PSS have a considerable influence on its electrical and optical properties and colloidal stability for practical applications.

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Section: Analysis Of Sodium Ion Contentmentioning

confidence: 99%

Influence of residual sodium ions on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)

Cho

Kim

et al. 2018

RSC Adv.

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“…Despite its demonstrated working activity, the main drawbacks when using PEDOT:PSS as counter electrode material is still its low conductivity (commonly measured as ≤ 1 S cm −1 ), due to the disordered PSS chains within the PEDOT matrix. Anyway, the conductivity of PEDOT:PSS can be enhanced by three orders magnitude, by following several routes, such as thermal treatments, [212,214] acid treatment, [215] solvent treatment, [216] or by increasing the molecular weight. Otherwise, PCE values remain low, since the conductivity-even if improved-is still low.…”

Section: Poly(styrene Sulfonic Acid)-doped Poly(34-ethylenedioxythiophene)mentioning

confidence: 99%

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

Fagiolari

Varaia

Mariotti

et al. 2021

Advanced Sustainable Systems

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Dye-sensitized solar cells (DSSCs) have become a strong reality in the field of hybrid photovoltaics. Their ability to operate in diffused light conditions and the possibility of fabrication of modules bearing different colors make these cells attractive for different applications, for example, wearable electronics, building integration, etc. This review focuses on one of the compounds rather often studied for DSSCs, namely, poly(3,4-ethylenedioxythiophene) (PEDOT). It has been introduced both as a substitute for liquid electrolytes, in order to facilitate cells fabrication and increase their durability, and as an alternative to platinum for counter electrodes. The literature counts many studies on PEDOT and this manuscript collects them following a classification criterion based on applications, functionalization/doping strategies, and deposition methods. In addition to comparing the performance obtained for PEDOT-based systems with those of traditional cells (i.e., assembled with liquid iodine-based electrolytes and platinum cathodes), the manuscript also offers a brief analysis of costs and sustainability aspects, built up on experimental data found in the literature; this latter is expected to constitute a precious resource to catalyze the attention of the scientific community on relevant and preliminary aspects when figuring out the industrial scalability of newly proposed cell components.

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“…It has been found that ITO is brittle for the flexible analogues and cracks are revealed at low tensile strain, multiple bending or folding [41]. In contrast to ITO, the conductive polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is an perspective alternative for transparent electrode in the flexible optoelectronic devices due to its superior mechanical properties, such as high elasticity, coefficient of thermal expansion closer to that of the plastic substrates, as well as cheaper and easier processing [42]. The low free surface energy of the flexible substrates such as PET, polyethylene sulfonate (PES) or polyethylene naphtalate (PEN), leads to poor adhesion of the PEDOT:PSS coatings and therefore additional surface modification is required, such as plasma or solvent treatment [43].…”

Section: Flexible Transparent Conductive Substratesmentioning

confidence: 99%

Technologies for deposition of transition metal oxide thin films: application as functional layers in “Smart windows” and photocatalytic systems

Gesheva

Ivanova

Bodurov

et al. 2016

J. Phys.: Conf. Ser.

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Abstract. "Smart windows" are envisaged for future low-energy, high-efficient architectural buildings, as well as for the car industry. By switching from coloured to fully bleached state, these windows regulate the energy of solar flux entering the interior. Functional layers in these devices are the transition metals oxides. The materials (transitional metal oxides) used in smart windows can be also applied as photoelectrodes in water splitting photocells for hydrogen production or as photocatalytic materials for self-cleaning surfaces, waste water treatment and pollution removal. Solar energy utilization is recently in the main scope of numerous world research laboratories and energy organizations, working on protection against conventional fuel exhaustion. The paper presents results from research on transition metal oxide thin films, fabricated by different methods -atomic layer deposition, atmospheric pressure chemical vapour deposition, physical vapour deposition, and wet chemical methods, suitable for flowthrough production process. The lower price of the chemical deposition processes is especially important when the method is related to large-scale glazing applications. Conclusions are derived about which processes are recently considered as most prospective, related to electrochromic materials and devices manufacturing. Transition metal oxidesTransition metal oxides (TMO) are claimed to be one of the most interesting classes of solids, exhibiting varieties of properties, structures and applications [1]. Their properties are determined by the unique nature of their outer d-electrons. Transition-metal oxides can be insulators, semiconductors, metals, or undergo semiconductor-metal transitions. Transition metal oxides possess unusual and useful electronic, optical and magnetic properties. Many of these properties strongly depend on materials defects like vacancies, dislocations, stacking faults and grain boundaries [2].

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Preparation of a working electrode with a conducting PEDOT:PSS film and its applications in a dye-sensitized solar cell

Cited by 18 publications

References 30 publications

Influence of residual sodium ions on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)

Influence of residual sodium ions on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

Technologies for deposition of transition metal oxide thin films: application as functional layers in “Smart windows” and photocatalytic systems

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