Synergetic effect of 2D/2D Co-SnS2 with reduced graphene oxide heterostructure for Pt-free counter electrode

Raveena, J.; Chandrapal, R. Roshan; Bakiyaraj, G.; Manikandan, Velu; Athitya, S.; Archana, J.; Navaneethan, M.

doi:10.1016/j.mtcomm.2022.105204

Cited by 7 publications

(3 citation statements)

References 87 publications

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“…The PCE of the DSSC based on SnS x ‐SnO 2 ‐decorated CoS x CE achieves 4.78 % ( V oc =0.69 V, J sc =10.18 mA cm −2 , FF=0.68). The above results demonstrate that the introduction of SnS x ‐SnO 2 nanomaterials on their surface enhances the stability of CoS x CEs in high‐humidity air [15–17,38] …”

Section: Resultsmentioning

confidence: 62%

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Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Shi,

Li,

Luo

et al. 2024

ChemistrySelect

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Metal sulfide stands out as one of the novel and promising platinum‐free counter electrode (CE) materials for dye‐sensitized solar cells (DSSCs). In this work, SnSx‐SnO2‐decorated CoSx films were designed and synthesized by a low‐temperature fabrication process. The small clusters of nanoparticles create a large amount of catalytic active sites, resulting in superior electrocatalytic activity for triiodide reduction. The DSSC with SnSx‐SnO2‐decorated CoSx film has achieved an impressive power conversion efficiency of 4.57 %, which is close to the efficiency of the DSSC with platinum CE (4.82 %). Furthermore, regarding the attenuation of the photovoltaic performance for the DSSC with SnSx‐SnO2‐decorated CoSx film, negligible change was observed after a prolonged storage under ambient condition for five days. Therefore, it is worthwhile to expect the explorations of novel fabricate technique for synthesizing cost‐effective metal sulfide films with long‐term stability in DSSCs.

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Section: Resultsmentioning

confidence: 62%

“…The above results demonstrate that the introduction of SnS x -SnO 2 nanomaterials on their surface enhances the stability of CoS x CEs in high-humidity air. [15][16][17]38]…”

Section: Resultsmentioning

confidence: 99%

Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Shi,

Li,

Luo

et al. 2024

ChemistrySelect

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“…These techniques are often advantageous due to their simplicity, scalability, and potential for low-cost manufacturing. A few solution-based techniques for depositing chalcogenide alloy films include chemical bath SnSe FTO Thin film TiO 2 5.76 [269] Co-SnS 2 /rGO FTO Nanoparticles and Nanosheets TiO 2 5.54 [270] α-NiS FTO Nanospheres TiO 2 5.20 [90] SnSe FTO Thin films TiO 2 4.90 [96] β-NiS FTO Nanorods TiO 2 4.20 [90] Traditional Pt FTO Nanotubes TiO 2 5.03 [278] Pt ITO Nanobelt structure NiO-SnO 2 4.14 [279] Pt FTO Nanorods ZnO-SnO 2 2.62 [280] deposition, spin-coating, dip-coating, sol-gel deposition, spray pyrolysis, and so forth. Feng et al [92] synthesized SnSe and SnS thin films and used them as CEs in DSSCs.…”

Section: Spin-coated Transition Metal Chalcogenide Thin Filmsmentioning

confidence: 99%

Advances in Hierarchical Inorganic Nanostructures for Efficient Solar Energy Harvesting Systems

Manjunatha,

Rastogi,

Manmadha Rao

et al. 2024

ChemSusChem

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The urgent need to address the global energy and environmental crisis necessitates the development of efficient solar‐power harvesting systems. Among the promising candidates, hierarchical inorganic nanostructures stand out due to their exceptional attributes, including a high specific surface area, abundant active sites, and tunable optoelectronic properties. In this comprehensive review, we delve into the fundamental principles underlying various solar energy harvesting technologies, including dye‐sensitized solar cells (DSSCs), photocatalytic, photoelectrocatalytic (water splitting), and photothermal (water purification) systems, providing a foundational understanding of their operation. The review then shifts its focus to recent advancements in the synthesis, design, and development of hierarchical nanostructures composed of diverse inorganic material combinations, tailored for each of these solar energy harvesting systems. We meticulously elaborate on the distinct synthesis methods and conditions employed to fine‐tune the morphological features of these hierarchical nanostructures. Furthermore, this review offers profound insights into critical aspects such as electron transfer mechanisms, band gap engineering, the creation of hetero‐hybrid structures to optimize interface chemistry through diverse synthesis approaches, and precise adjustments of structural features. Beyond elucidating the scientific fundamentals, this review explores the large‐scale applications of the aforementioned solar harvesting systems.

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Effect of interlayer spacing on the electronic and optical properties of SnS2/graphene/SnS2 sandwich heterostructure: a density functional theory study

Idisi,

Benecha,

Mwakikunga

et al. 2024

J Comput Electron

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The formation of metal dichalcogenide heterostructures enables tailoring their properties for future optoelectronics and energy storage. The current paper focuses on the study of the effect of interlayer spacing on the electronic and optical properties of SnS2/graphene/SnS2 sandwich heterostructure, using density functional theory electronic structure calculations. We find low cohesive energies/ per atom ($$0.0506 \to 0.0514$$ 0.0506 → 0.0514 eV) for all the various interlayer spacing configurations (1–5 Å) considered in this study, implying the feasibility of experimental realization. The Mulliken charge transfer analysis suggests negative to positive net charge ($$-0.12 \to 0.18$$ - 0.12 → 0.18 ) transfer for 1–3 Å threshold interlayer spacing, which implies acceptor and donor charge transfer configurations. The density of states of SnS2/graphene/SnS2 retains unoccupied states for all the interlayer spacing configurations, which can be attributed to localized exciton states and strong electronic coupling between the electrons within the heterostructure layers. We further find a strong optical response and localized electronic transport, which can pave the way for optoelectronic applications of this material heterostructure.

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Synergetic effect of 2D/2D Co-SnS2 with reduced graphene oxide heterostructure for Pt-free counter electrode

Cited by 7 publications

References 87 publications

Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Advances in Hierarchical Inorganic Nanostructures for Efficient Solar Energy Harvesting Systems

Effect of interlayer spacing on the electronic and optical properties of SnS2/graphene/SnS2 sandwich heterostructure: a density functional theory study

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Synergetic effect of 2D/2D Co-SnS2 with reduced graphene oxide heterostructure for Pt-free counter electrode

Cited by 7 publications

References 87 publications

Facile Fabrication of an SnSx‐SnO2‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Facile Fabrication of an SnSx‐SnO2‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Advances in Hierarchical Inorganic Nanostructures for Efficient Solar Energy Harvesting Systems

Effect of interlayer spacing on the electronic and optical properties of SnS2/graphene/SnS2 sandwich heterostructure: a density functional theory study

Contact Info

Product

Resources

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Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

Facile Fabrication of an SnS_x‐SnO₂‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells