Higher open-circuit voltage set by cobalt redox shuttle in SnO2 nanofibers-sensitized CdTe quantum dot solar cells

Unni, Gautam E.; Sasi, Soorya; Nair, A. Sreekumaran

doi:10.1016/j.jechem.2016.02.008

Cited by 6 publications

(2 citation statements)

References 47 publications

(47 reference statements)

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“…Three independent measurements were performed for each of the samples and averaged for particle size calculations, yielding values of 204, 221, and 115 nm for NiTe, NiTe 2 , and Ni 2 Te 3 , as shown in Figure 6 . It must be noted that results obtained by DLS generally tend to give higher values than those obtained by electron microscopy due to the fact that in the former case, particles are surrounded by water molecules [ 48 , 49 , 50 ].…”

Section: Resultsmentioning

confidence: 99%

Solvent-Free Mechanochemical Synthesis and Characterization of Nickel Tellurides with Various Stoichiometries: NiTe, NiTe2 and Ni2Te3

et al. 2021

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The paper reports the synthesis of nickel tellurides via a mechanochemical method from elemental precursors. NiTe, NiTe2, and Ni2Te3 were prepared by milling in stainless steel vials under nitrogen, using milling times from 1 h to 12 h. The products were characterized by powder X-ray diffraction (pXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS), vibrating sample magnetometer (VSM), UV-VIS spectrometry, and thermal analysis (TGA and DSC). The products were obtained in the form of aggregates, several hundreds of nanometers in size, consisting of smaller nanosized crystallites. The magnetic measurements revealed a ferromagnetic behavior at room temperature. The band gap energies calculated using Tauc plots for NiTe, NiTe2, and Ni2Te3 were 3.59, 3.94, and 3.70 eV, respectively. The mechanochemical process has proved to be a simple and successful method for the preparation of binary nickel tellurides, avoiding the use of solvents, toxic precursors, and energy-consuming reaction conditions.

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Section: Resultsmentioning

confidence: 99%

Solvent-Free Mechanochemical Synthesis and Characterization of Nickel Tellurides with Various Stoichiometries: NiTe, NiTe2 and Ni2Te3

et al. 2021

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“…In the case of organic-inorganic NCs hybrid solar cells, metal oxides have the ability to attain high efficiency as they have several scales of pores which may shorten the carrier diffusing length [83]. Using different passivation layers (ZnSe or CdS) and changing different metal oxide thicknesses are also possible ways of improving the efficiency of CdTe NC-based solar cells [84,85]. With the rapid rate of progress on CdTe NC-based solar cells, combined with further device optimization, solution-process CdTe NCs solar cells have a promising future.…”

Section: Perspectives and Conclusionmentioning

confidence: 99%

Recent Progress on Solution-Processed CdTe Nanocrystals Solar Cells

Hao

Xie

et al. 2016

Applied Sciences

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Solution-processed CdTe nanocrystals (NCs) photovoltaic devices have many advantages, both in commercial manufacture and daily operation, due to the low-cost fabrication process, which becomes a competitive candidate for next-generation solar cells. All solution-processed CdTe NCs solar cells were first reported in 2005. In recent years, they have increased over four-fold in power conversion efficiency. The latest devices achieve AM 1.5 G power conversion efficiency up to 12.0%, values comparable to those of commercial thin film CdTe/CdS solar cells fabricated by the close-space sublimation (CSS) method. Here we review the progress and prospects in this field, focusing on new insights into CdTe NCs synthesized, device fabrication, NC solar cell operation, and how these findings give guidance on optimizing solar cell performance.

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Tuning quantum dots emission on DNA tetrahedron/silica nanosphere/graphene oxide nanointerface for ratiometric fluorescence assay of Pb2+ in multiplex samples

Li,

Luo,

Wang

et al. 2024

Analytica Chimica Acta

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Higher open-circuit voltage set by cobalt redox shuttle in SnO2 nanofibers-sensitized CdTe quantum dot solar cells

Cited by 6 publications

References 47 publications

Solvent-Free Mechanochemical Synthesis and Characterization of Nickel Tellurides with Various Stoichiometries: NiTe, NiTe2 and Ni2Te3

Solvent-Free Mechanochemical Synthesis and Characterization of Nickel Tellurides with Various Stoichiometries: NiTe, NiTe2 and Ni2Te3

Recent Progress on Solution-Processed CdTe Nanocrystals Solar Cells

Tuning quantum dots emission on DNA tetrahedron/silica nanosphere/graphene oxide nanointerface for ratiometric fluorescence assay of Pb2+ in multiplex samples

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