Properties of oxidation quantum dots-CdO/TiO2 heterostructures constructed as DSSC photoanodes

Jin, Liguo; Wang, Yuwen; Wu, Jing; Su, Chaoying; Zhou, Hong; Xu, Huanyan

doi:10.1016/j.mssp.2022.106720

Cited by 9 publications

(3 citation statements)

References 20 publications

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“…Intensive investigations have been conducted into mono-, bi-, and tri-component materials [14][15][16], and methods for creating heterostructures for solar cells are being actively developed [17][18][19]. Among these materials, CdO and CdS have emerged as promising candidates, particularly in dye-sensitized solar cells (DSSC) [20,21]. For instance, CdS has been recognized for its utility in DSSC, and its synthesis primarily revolves around methods such as chemical bath deposition, vacuum evaporation, or sputtering [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Suchikova,

Kovachov,

Bohdanov

et al. 2024

Materials

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This study introduces an innovative method for synthesizing Cadmium Oxide /Cadmium Sulfide/Zinc Oxide heterostructures (CdO/CdS/ZnO), emphasizing their potential application in solar energy. Utilizing a combination of electrochemical deposition and oxygen annealing, the research provides a thorough analysis of the heterostructures through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, and photoluminescence (PL) spectroscopy. The findings reveal a complex surface morphology and a composite structure with significant contributions from hexagonal CdS and cubic CdO phases. The study highlights the uniformity in the distribution of luminescent centers and the crystalline quality of the heterostructures, which is evident from the PL analysis. The redshift observed in the emission peak and the additional peaks in the excitation spectrum indicate intricate optical properties influenced by various factors, including quantum confinement and lattice strain. The research demonstrates these heterostructures’ potential in enhancing solar cells’ efficiency and applicability in optoelectronic devices. This comprehensive characterization and analysis pave the way for future optimization and application in efficient and sustainable solar energy solutions.

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Section: Introductionmentioning

confidence: 99%

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Suchikova,

Kovachov,

Bohdanov

et al. 2024

Materials

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“…Therefore, researchers are urgently seeking alternative materials to replace Pt. Different kinds of materials, such as carbon-based materials 8 , organic polymers 9 , transition metal dichalcogenides 10 , oxide-based materials 11 , and sulfide-based materials 12 , have been investigated and have shown excellent power conversion due to their superior electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

A novel of WS2–MoCuO3 supported with graphene quantum dot as counter electrode for dye-sensitized solar cells application

Areerob

Hamontree

et al. 2023

Sci Rep

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A novel tungsten disulfide-molybdenum copper oxide composite supported with graphene quantum dots (WM@GQDs) has been synthesized as a counter electrode (CE) for dye-sensitized solar cells (DSSCs) using a simple and low-cost ultrasonication method. The unique structure of WM@GQDs exhibits excellent power conversion efficiency due to its high catalytic activity and charge transport properties. In addition, the graphene quantum dots (GQDs) provide more active sites in the zero-dimensional materials for an I/I3− redox reaction which can improve the electrical and optical properties of the composite. The results indicate that the amount of GQDs in the composite affect the effectiveness of solar devices. When 0.9%wt of GQDs was used, the WM@GQDs composite achieved an efficiency of 10.38%, which is higher than that of the expensive platinum CE under the same conditions. The mechanism behind the improved power conversion efficiency (PCE) of the composite sample is also discussed in detail. Therefore, WM@GQDs can be an efficient material to replace platinum in DSSCs as a CE.

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“…Metal oxides have been the subject of many studies due to their excellent photocatalytic properties. TiO2 [1,2], NiO [3,4], Ga2O3 [5,6], MgO [7,8], CdO [9,10], etc. semiconductors are widely studied.…”

Section: Introductionmentioning

confidence: 99%

Formation of CdO/CdS/textured-ZnO/ZnO heterostructures by chemical deposition

Suchikova

Lazarenko

Ковачов

et al. 2022

Phys. Chem. Solid St.

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CdO/CdS/textured-ZnO/ZnO heterostructure was synthesized using a combination of electrochemical etching and chemical deposition methods. Electrochemical etching was used to form a textured ZnO layer. Chemical deposition of a solution containing CdCl2 was performed to prepare a CdS film with CdO nanoparticles on the surface. The obtained nanocomposite was characterized using SEM, EDX and Raman methods for structural, morphological and component studies. SEM images and Raman scattering showed the existence of cubic phase of CdO nanocrystals. The SEM study revealed the dispersion of 50-200 nm agglomerated nanostructures on the surface of CdS film.

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Properties of oxidation quantum dots-CdO/TiO2 heterostructures constructed as DSSC photoanodes

Cited by 9 publications

References 20 publications

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

A novel of WS2–MoCuO3 supported with graphene quantum dot as counter electrode for dye-sensitized solar cells application

Formation of CdO/CdS/textured-ZnO/ZnO heterostructures by chemical deposition

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