Pt-free, cost-effective and efficient counter electrode with carbon nanotube yarn for solid-state fiber dye-sensitized solar cells

Kim, Jae Ho; Hong, Soon Kyu; Yoo, Seokju; Woo, Chae Young; Choi, Jin Woo; Lee, Daseul; Kang, Jae‐Wook; Lee, Hyung Woo; Song, Myungkwan

doi:10.1016/j.dyepig.2020.108855

Cited by 32 publications

(12 citation statements)

References 31 publications

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“…The best results were obtained for perovskites with a mix iodide and chloride ions. New developments with the counter electrode for a fiber solar cell configuration was made using a carbon nanotube yarn [63]. A slight increase in the power conversion efficiency was obtained with 4% as compared to 2.64% with platinum as a representative to the noble metals traditionally used.…”

Section: Photovoltaic Fibers/filamentsmentioning

confidence: 99%

“…A slight increase in the power conversion efficiency was obtained with 4% as compared to 2.64% with platinum as a representative to the noble metals traditionally used. New developments with the counter electrode for a fiber solar cell configuration was made using a carbon nanotube yarn [63]. A slight increase in the power conversion efficiency was obtained with 4% as compared to 2.64% with platinum as a representative to the noble metals traditionally used.…”

Section: Photovoltaic Fibers/filamentsmentioning

confidence: 99%

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Energy Harvesting Materials and Structures for Smart Textile Applications: Recent Progress and Path Forward

Dolez

2021

Sensors

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A major challenge with current wearable electronics and e-textiles, including sensors, is power supply. As an alternative to batteries, energy can be harvested from various sources using garments or other textile products as a substrate. Four different energy-harvesting mechanisms relevant to smart textiles are described in this review. Photovoltaic energy harvesting technologies relevant to textile applications include the use of high efficiency flexible inorganic films, printable organic films, dye-sensitized solar cells, and photovoltaic fibers and filaments. In terms of piezoelectric systems, this article covers polymers, composites/nanocomposites, and piezoelectric nanogenerators. The latest developments for textile triboelectric energy harvesting comprise films/coatings, fibers/textiles, and triboelectric nanogenerators. Finally, thermoelectric energy harvesting applied to textiles can rely on inorganic and organic thermoelectric modules. The article ends with perspectives on the current challenges and possible strategies for further progress.

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Section: Photovoltaic Fibers/filamentsmentioning

confidence: 99%

Section: Photovoltaic Fibers/filamentsmentioning

confidence: 99%

Energy Harvesting Materials and Structures for Smart Textile Applications: Recent Progress and Path Forward

Dolez

2021

Sensors

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“…There has been a lot of research focus on improving the performance of DSSC by modifying different components of DSSC (photoanode, dye, redox couple, and counter electrode). The metal–oxide semiconductors, particularly TiO 2 in photoanode in various doped and composite forms, for example, gold plasmonic nanoarchitectures with titania, 12 barium stannate with titania, 14 silver nanoparticles with titania nanospheres, 15 different light sensitizers like quantum dot sensitizers, perovskite materials, 13 perovskite sensitizers, 16 carbon allotropes with TiO 2 , 17 nano‐sized erbium oxide with titanium oxide, 18 metal–organic frameworks with titania, 19 Ag‐decorated SiO 2 , 21 hybrid co‐sensitizers, various redox mediators, various counter electrode (electro‐catalytic) materials, for example, highly mesoporous carbons, 8 Pt with CVD method, 9 polyaniline/graphene nanocomposites as counter electrode materials, 10 carbon/TiO 2 composite counter electrode, 11 and carbon nanotubes 20 have been tried to improve the performance of DSSC.…”

Section: Introductionmentioning

confidence: 99%

Metal‐organic framework coordinated with cobalt ion as charge recombination retarder in dye‐sensitized solar cells

Younas

Gondal

Dastageer

et al. 2022

Intl J of Energy Research

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The photoanode of the conventional dye-sensitized solar cell (DSSC) is modified, by depositing a layer of cobalt-metallic-ion-coordinated metal-organic framework (Co-MOF199) on top of the regular titanium-dioxide film. The results of electrochemical impedance spectrum (EIS) indicated that the presence of Co-MOF199 layer in the photoanode of DSSC brought about an increase in the electron recombination lifetime (time to the electrons to recombine with the cations) and, consequently, the increase in electron recombination resistance (R rec ) in the photoanode electrolyte interface. The increased recombination resistance is attributed to the efficient retardation of the rapid recombination between photo-induced electrons and transient cations in DSSC. These positive changes in the photoanode electrolyte interface of DSSC resulted in the increase in open-circuit voltage (V oc ), which accounts for the ultimate 20% enhancement in the power conversion efficiency η ð Þ, compared to the conventional DSSC. A total of six Co-MOF199 concentration variants of DSSC configurations coated by soaking and spin coating were fabricated, and it was observed that [TiO 2 + N3/Co-MOF199 (30 mM)/Pt] DSSC configuration

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“…However, since conventional FDSSCs contain an electrolyte in a liquid state, stability of the power conversion efficiency (PCE) of the solar cells is very unstable due to leakage and volatility of the electrolyte. Hence, in our previous studies, solid-state FDSSCs (SS-FDSSCs) were developed with PCE comparable to liquid electrolytebased devices and excellent stability that were not seen in liquid electrolyte [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Efficient and Stable Fiber Dye-Sensitized Solar Cells Based on Solid-State Li-TFSI Electrolytes with 4-Oxo-TEMPO Derivatives

Kim

Shin

et al. 2022

Nanomaterials

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Fiber-shaped dye-sensitized solar cells (FDSSCs) with flexibility, weavablity, and wearability have attracted intense scientific interest and development in recent years due to their low cost, simple fabrication, and environmentally friendly operation. Since the Grätzel group used the organic radical 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) as the redox system in dye-sensitized solar cells (DSSCs) in 2008, TEMPO has been utilized as an electrolyte to further improve power conversion efficiency (PCE) of solar cells. Hence, the TEMPO with high catalyst oxidant characteristics was developed as a hybrid solid-state electrolyte having high conductivity and stability structure by being integrated with a lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) film for FDSSCs. The optimized 4-Oxo TEMPO (OX) based solid-state FDSSC (SS-FDSSC) showed the PCE of up to 6%, which was improved by 34.2% compared to that of the reference device with 4.47%. The OX-enhanced SS-FDSSCs reduced a series resistance (Rs) resulting in effective electron extraction with improved short-circuit current density (JSC), while increasing a shunt resistance (Rsh) to prevent the recombination of photo-excited electrons. The result is an improvement in a fill factor (FF) and consequently a higher value for the PCE.

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Pt-free, cost-effective and efficient counter electrode with carbon nanotube yarn for solid-state fiber dye-sensitized solar cells

Cited by 32 publications

References 31 publications

Energy Harvesting Materials and Structures for Smart Textile Applications: Recent Progress and Path Forward

Energy Harvesting Materials and Structures for Smart Textile Applications: Recent Progress and Path Forward

Metal‐organic framework coordinated with cobalt ion as charge recombination retarder in dye‐sensitized solar cells

Efficient and Stable Fiber Dye-Sensitized Solar Cells Based on Solid-State Li-TFSI Electrolytes with 4-Oxo-TEMPO Derivatives

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