Cobalt-doped cadmium sulfide nanoparticles as efficient strategy to enhance performance of quantum dot sensitized solar cells

Firoozi, Najmeh; Dehghani, Hossein; Afrooz, Malihe

doi:10.1016/j.jpowsour.2014.12.033

Cited by 39 publications

(12 citation statements)

References 51 publications

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“…Firoozi et al [142] have studied the effect of cobalt (Co) doping in CdS QD. Decreased charge transfer resistance is obtained for Co doped CdS QDSSC and higher efficiency of 3.61% is achieved in comparison to efficiency (2.33%) for undoped CdS based device.…”

Section: Othersmentioning

confidence: 99%

Quantum dot sensitized solar cell: Recent advances and future perspectives in photoanode

Sharma

Jha

Kumar

2016

Solar Energy Materials and Solar Cells

144

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Section: Othersmentioning

confidence: 99%

Quantum dot sensitized solar cell: Recent advances and future perspectives in photoanode

Sharma

Jha

Kumar

2016

Solar Energy Materials and Solar Cells

144

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“…The spike slopes in the low-frequency region are associated with Warburg impedance ( Z w ) as a result of the frequency dependence of electrolyte diffusion into porous electrodes. The spike slopes in the low-frequency region were found to very steep for all the CNFs, indicating a pronounced capacitive behavior with small diffusion resistance. − The overall resistive and capacitive parameters could be evaluated by fitting the experimental EIS data with a modified Randles circuit, as summarized in Table . The R s values of all the CNFs were evaluated to be 4.34–4.84 Ω, indicating low bulk resistance of the electrode cell.…”

Section: Resultsmentioning

confidence: 99%

Poly(Ether Amide)-Derived, Nitrogen Self-Doped, and Interfused Carbon Nanofibers as Free-Standing Supercapacitor Electrode Materials

Kwon

Park

Lee

et al. 2021

ACS Appl. Energy Mater.

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For free-standing and self-doped electrode materials of energy storage devices, in this study, we investigate the microstructures and electrochemical properties of aromatic poly(ether amide) (PEA)-derived carbon nanofibers (CNFs), which are manufactured by electrospinning mixed solutions of PEA and poly(vinyl pyrrolidone) (PVP) at three different compositions and carbonization of the as-spun nanofibers at 1000 °C. The scanning electron microscopy, energy dispersive spectroscopy, Raman spectroscopy, and elemental analyses reveal that PEA-derived CNFs have a unique interfused network structure with nitrogen self-doped and quasi-ordered graphitic features. Accordingly, a high apparent electrical conductivity of 3.72−7.79 S/cm is attained for the CNFs. The cyclic voltammetry and galvanostatic charge−discharge measurements confirm that PEA-derived CNFs have excellent electrochemical properties in terms of a specific capacitance of ∼249.0 F/g at 1.0 A/g, power density of 10,000−1,000 W/kg, energy density of 30.1−69.1 Wh/kg, capacitance retention of ∼79%, and Coulombic efficiency of ∼92% after 3000 cycle tests. These results indicate that PEA-derived CNFs can be used as highly stable, self-supporting, and doping-free electrode materials for high-performance energy storage devices.

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“…But based on the trend, it should have an improved performance. On the other hand, cobalt ion also has the potential to be used as a doping agent where in one report, efficiency increment of 35% was observed in Co-doped CdS QDSSC [41]. Although the improvement is not impressive (in terms of percentage improvement), it is still a viable strategy.…”

Section: Recent Advances In Qdsscmentioning

confidence: 99%

A Short Overview on Recent Progress in Semiconductor Quantum Dot‐Sensitized Solar Cells

Jun

Tung

2022

Journal of Nanomaterials

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The past few years have been great years for semiconductor quantum dot-sensitized solar cells (QDSSCs). For the first time, efficiency exceeding 15% has been reported. This has narrowed the gap with other emerging solar cell technologies such as dye-sensitized solar cells and thin film solar cells. In this miniperspective, the reason for such improvement is briefly reviewed. Few advancements have been identified that are responsible for the performance breakthrough in QDSSCs. These included better performance of sensitizer materials used, the use of doping agents, and surface passivation strategy.

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Cobalt-doped cadmium sulfide nanoparticles as efficient strategy to enhance performance of quantum dot sensitized solar cells

Cited by 39 publications

References 51 publications

Quantum dot sensitized solar cell: Recent advances and future perspectives in photoanode

Quantum dot sensitized solar cell: Recent advances and future perspectives in photoanode

Poly(Ether Amide)-Derived, Nitrogen Self-Doped, and Interfused Carbon Nanofibers as Free-Standing Supercapacitor Electrode Materials

A Short Overview on Recent Progress in Semiconductor Quantum Dot‐Sensitized Solar Cells

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