Carbon nanotubes <i>in situ</i> embedded with NiS nanocrystals outperform Pt in dye-sensitized solar cells: interface improved activity

Wang, Xiuwen; Xie, Ying; Jiao, Yanqing; Pan, Kai; Bateer, Buhe; Wu, Jun; Fu, Honggang

doi:10.1039/c9ta00649d

Cited by 44 publications

(21 citation statements)

References 42 publications

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“…Recently, an active-site-enriched NiS/MWCNTs composites have been controllable prepared using small sized and monodispersed NiS nanoparticles in situ embedded in MWCNTs through the facile colloidal synthesize method by our group. [173] An extraordinary PCE of 10.82% has been achieved when the optimized NiS/MWCNTs composites are used as the CE catalysts for DSSCs, which is obviously higher than that of the NiS (7.45%), MWCNTs (6.81%), Pt (8.03%). Meanwhile, the influence of the different contents of NiS on the performance of NiS/MWCNTs composites was also elucidated.…”

Section: Sulfide/carbon Compositementioning

confidence: 97%

Review on Low‐Cost Counter Electrode Materials for Dye‐Sensitized Solar Cells: Effective Strategy to Improve Photovoltaic Performance

Wang

Zhao

Kan

et al. 2021

Adv Materials Inter

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The photoelectric conversion efficiency (PCE) of dye‐sensitized solar cells (DSSCs) can be remarkably improved by optimizing the catalytic activity and charge transfer ability of the counter electrode (CE) materials. The attentive hotspots of CE catalysts for DSSCs are to design multifunctional materials that balance the fabrication cost, environmental friendliness, PCE, and electrochemical stability, then to achieve the substitution of the benchmark Pt. In this review, the four effective strategies are highlighted for further improving the photovoltaic performance of the DSSCs based on low‐cost CE materials, such as heteroatom‐doped materials, development of noble metal‐free chalcogenides with well‐controlled facets, construction of heterostructure, and synthesis of composites with a synergistic effect. In some typical examples, the influence of these strategies on catalytic activity, charge transfer ability, and reaction mechanism are elucidated by the theoretical calculation. Then the research opportunities and the challenges for the high‐efficiency DSSCs based on low‐cost CE materials are presented.

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Section: Sulfide/carbon Compositementioning

confidence: 97%

Review on Low‐Cost Counter Electrode Materials for Dye‐Sensitized Solar Cells: Effective Strategy to Improve Photovoltaic Performance

Wang

Zhao

Kan

et al. 2021

Adv Materials Inter

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“…In addition, it is also worth noting that when dyes are absorbed on the TiO 2 surface, the strong interactions between them might generate built‐in electric field that can tune the resulting work function to affect the charge recombination. [ 34 ]…”

Section: Squaraine‐based Functional Materials For Photovoltaic Applicmentioning

confidence: 99%

Squaraine Dyes for Photovoltaic and Biomedical Applications

Sun

et al. 2020

Adv Funct Materials

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Squaraine dyes (SQs) are an important class of polymethine dyes with a unique reasonable‐stabilized zwitterionic structure, in which electrons are highly delocalized over the conjugated bridge. These dyes can not only be easily synthesized via a condensation, but also exhibit intense absorption and emission in the visible and near‐infrared region with excellent photochemical stability, making them attractive material candidates for many photoelectric and biomedical applications. Thus, in this review, after an introduction of SQs, the recent advances of SQs in the photovoltaic field are comprehensively summarized including dye‐sensitized solar cells, organic solar cells, and perovskite solar cells. Then, the important advances in the use of SQs as the biosensors, biological imaging, and photodynamic/photothermal therapy reagents in the biomedical field are also discussed. Finally, a summary and outlook will be provided with some new perspectives for the future design of SQs.

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“…Various types of carbon materials such as carbon black, graphene or carbon nanotubes were used as back-contact in DSCs and PSCs. [85][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101][102] It should be noted that the champion DSC structure involves mesoporous TiO2 sensitized with ADEKA-1/LEG4 dyes, Co III/II couple as redox electrolyte and a graphene nanoplate-based counter-electrode (GNP). This system allowed to obtain a PCE of 14.3%, which remains the highest values reported since 2015.…”

Section: Dye-sensitized Solar Cellsmentioning

confidence: 99%

Biomass-derived carbon electrodes for supercapacitors and hybrid solar cells: towards sustainable photo-supercapacitors

Keppetipola

Olivier

Toupance

et al. 2021

Sustainable Energy Fuels

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Carbon nanotubes in situ embedded with NiS nanocrystals outperform Pt in dye-sensitized solar cells: interface improved activity

Abstract: An active-site-enriched NiS/CNT composite with a unique interface was synthesized and exhibited a surprising photoelectric conversion efficiency of 10.82%.

Cited by 44 publications

References 42 publications

Review on Low‐Cost Counter Electrode Materials for Dye‐Sensitized Solar Cells: Effective Strategy to Improve Photovoltaic Performance

Review on Low‐Cost Counter Electrode Materials for Dye‐Sensitized Solar Cells: Effective Strategy to Improve Photovoltaic Performance

Squaraine Dyes for Photovoltaic and Biomedical Applications

Biomass-derived carbon electrodes for supercapacitors and hybrid solar cells: towards sustainable photo-supercapacitors

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