Highly conductive PEDOT films with enhanced catalytic activity for dye-sensitized solar cells

Kouhnavard, Mojgan; Diao, Yifan; Arcy, Julio M. D'; Mishra, Rohan; Biswas, Pratim

doi:10.1016/j.solener.2020.09.059

Cited by 19 publications

(18 citation statements)

References 55 publications

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“…Vapor phase polymerization is another potential technique commonly used to prepare PEDOT-based CEs. Very recently, conversion efficiency of 8.4% was reported for PEDOT-based DSSCs, in conjunction with an I 3 − /I − redox mediator [58]. The authors first deposited a thin layer of Fe 2 O 3 on FTO, and subsequently, they obtained PEDOT CEs by in situ treatment with EDOT and HCl: Fe 3+ , which generated by dissolution of Fe 2 O 3 upon under acidic conditions, acts as the oxidizing agent of EDOT.…”

Section: Pedot Based Alternative Counter Electrodes In Dsscs 321 Iodide-iodine Electrolytementioning

confidence: 99%

On the Use of PEDOT as a Catalytic Counter Electrode Material in Dye-Sensitized Solar Cells

et al. 2021

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Dye-sensitized solar cells (DSSCs) emerged in the early 1990s as a promising alternative to the classic silicon-based solar cell due to their unique combination of low cost, ease of fabrication, color palette for building integration, and high efficiency in indoor applications. This review article describes the fabrication and the properties of poly (3,4-ethylenedioxythiophene) (PEDOT)-based catalytic counter electrodes (CEs) for DSSCs. In particular, the electrochemical reactivity PEDOT CEs used in conjunction with alternative redox mediators for DSSCs is outlined. Among alternative redox shuttles, cobalt and copper complexes, as well as totally organic thiolate/disulfide, have been considered. Finally, PEDOT can also be used as a hole conductor material in electrolyte-free solid-state dye-sensitized solar cells. This review clearly shows that the progress in DSSCs development is strongly linked to the introduction of PEDOT as a new counter electrode material.

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Section: Pedot Based Alternative Counter Electrodes In Dsscs 321 Iodide-iodine Electrolytementioning

confidence: 99%

On the Use of PEDOT as a Catalytic Counter Electrode Material in Dye-Sensitized Solar Cells

et al. 2021

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“…Previous groups have reported on the incorporation of PEDOT-based CEs with cobalt-based redox mediators in inorganic DSSCs with similar results [ 93 ]. This improvement of the electrochemical response of PEDOT/CNT CEs has been attributed to their excellent electrical conductivity [ 64 , 89 ], intrinsic electrocatalytic activity [ 94 ], and the high heterogeneous electron transfer rates of the embedded MWCNT, where unique hollow structure and edge-plane-like defects of MWCNTs, such as open ends, enhance these characteristics [ 95 ]. This improved conductivity can also contribute to the restriction of recombination events, prolonging the lifetime of active species in the electrolyte [ 96 ].…”

Section: Discussionmentioning

confidence: 99%

PEDOT-Carbon Nanotube Counter Electrodes and Bipyridine Cobalt (II/III) Mediators as Universally Compatible Components in Bio-Sensitized Solar Cells Using Photosystem I and Bacteriorhodopsin

Teodor

Monge

Aguilar

et al. 2022

IJMS

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In nature, solar energy is captured by different types of light harvesting protein–pigment complexes. Two of these photoactivatable proteins are bacteriorhodopsin (bR), which utilizes a retinal moiety to function as a proton pump, and photosystem I (PSI), which uses a chlorophyll antenna to catalyze unidirectional electron transfer. Both PSI and bR are well characterized biochemically and have been integrated into solar photovoltaic (PV) devices built from sustainable materials. Both PSI and bR are some of the best performing photosensitizers in the bio-sensitized PV field, yet relatively little attention has been devoted to the development of more sustainable, biocompatible alternative counter electrodes and electrolytes for bio-sensitized solar cells. Careful selection of the electrolyte and counter electrode components is critical to designing bio-sensitized solar cells with more sustainable materials and improved device performance. This work explores the use of poly (3,4-ethylenedioxythiophene) (PEDOT) modified with multi-walled carbon nanotubes (PEDOT/CNT) as counter electrodes and aqueous-soluble bipyridine cobaltII/III complexes as direct redox mediators for both PSI and bR devices. We report a unique counter electrode and redox mediator system that can perform remarkably well for both bio-photosensitizers that have independently evolved over millions of years. The compatibility of disparate proteins with common mediators and counter electrodes may further the improvement of bio-sensitized PV design in a way that is more universally biocompatible for device outputs and longevity.

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“…This PEDOT-based counter electrode displayed outstanding electrocatalytic activity for the I 3 − /I − reduction, as well as a charge-transfer resistance lower than that of the Pt electrode. Nevertheless, the PV performance of DSSCs fabricated with counter electrodes based on conducting polymers has not been as high as that of Pt-based DSSCs [24].…”

Section: Introductionmentioning

confidence: 99%

“…Conducting polymers are promising materials for use in counter electrodes because of their inexpensiveness, high conductivity, and excellent catalytic activity for the reduction of I 3 − [22][23][24]. In particular, polyaniline (PANI) has been used as a counter electrode because of its ease of synthesis, high conductivity, and excellent electrocatalytic activity [22].…”

Section: Introductionmentioning

confidence: 99%

“…The photoenergy conversion efficiency (PCE) of the PPybased device was approximately 21% lower than that of the reference Pt-based device [23]. A high-conductivity thin film of poly (3,4-ethylenedioxythiophene) (PEDOT) has also been coated on FTO glass for use as a counter electrode in a DSSC [24]. This PEDOT-based counter electrode displayed outstanding electrocatalytic activity for the I 3 − /I − reduction, as well as a charge-transfer resistance lower than that of the Pt electrode.…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline/Ag2S–CdS Nanocomposites as Efficient Electrocatalysts for Triiodide Reduction in Dye-Sensitized Solar Cells

Kuo

Cheng

et al. 2021

Catalysts

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In this study, an Ag2S–CdS nanocomposite (AC11) was prepared through chemical co-precipitation of silver nitrate and cadmium acetate in an aqueous solution of thiourea. We then synthesized PACI, a nanocomposite of polyaniline (PANI) and AC11, through in situ polymerization of aniline in an AC11-containing solution, resulting in uniform embedding of the AC11 nanoparticles in the PANI fibers. Moreover, we synthesized the nanocomposite PACO through deposition of the AC11 nanoparticles on the surface of the PANI fibers. PANI, PACI, and PACO were then spin-coated onto conducting glasses to form PANI-S, PACI-S, and PACO-S counter electrodes, respectively, for dye-sensitized solar cells (DSSCs). Cyclic voltammetry revealed that the electrochemical catalytic activity of the PACI-S electrode was much higher than those of the PANI-S and PACO-S electrodes. Furthermore, the photovoltaic properties of the PACI-S-based DSSC were much better than those of the PANI-S- and PACO-S-based DSSCs. Indeed, the highest short-circuit current density (12.06 mA/cm2), open-circuit voltage (0.72 V), fill factor (0.58), and photoenergy conversion efficiency (5.04%) were those of the DSSC featuring PACI-S as the counter electrode.

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Highly conductive PEDOT films with enhanced catalytic activity for dye-sensitized solar cells

Cited by 19 publications

References 55 publications

On the Use of PEDOT as a Catalytic Counter Electrode Material in Dye-Sensitized Solar Cells

On the Use of PEDOT as a Catalytic Counter Electrode Material in Dye-Sensitized Solar Cells

PEDOT-Carbon Nanotube Counter Electrodes and Bipyridine Cobalt (II/III) Mediators as Universally Compatible Components in Bio-Sensitized Solar Cells Using Photosystem I and Bacteriorhodopsin

Polyaniline/Ag2S–CdS Nanocomposites as Efficient Electrocatalysts for Triiodide Reduction in Dye-Sensitized Solar Cells

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