Defect and Ordered Tungsten Oxides Encapsulated Inside 2H–WX2(X=S and Se) Fullerene-Related Structures

Sloan, Jeremy; Hutchison, J. L.; Tenne, Reshef; Feldman, Yishay; Tsirlina, T.; Homyonfer, M.

doi:10.1006/jssc.1998.8125

Cited by 43 publications

(60 citation statements)

References 34 publications

(56 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The long spacing of 12.7 A > could be assigned to the (001) re#ection of the W 18 O 49 phase. In other series of growth experiments however, the spacing of the di!raction dots of the oxide core (16.5 A > ) coincided with that of the CS-W O phase, i.e., the one belonging to the +001, 0 CS series, which was discussed in detail in (5). Figure 8a shows a [010] view of a fragment of a broken W 18 O 49 nanowhisker.…”

Section: Iii1 Study Of the Reduction Ewect On The Wo \V Particles Bmentioning

confidence: 82%

“…It is to be noted, that in the case of type I oxide nanoparticles, the presence of H S gas in the reaction atmosphere led to a rapid encasing of the oxide nanoparticles by a few WS layers, and the quasi-spherical shape of the nanoparticles is therefore preserved (1). Also, typically +102, or +103, CS planes were found in the reduced oxide core of such nanoparticles (5). The rate of reduction of the oxide was also found to be slowed down considerably in the case of the WS encapsulated WO \V nanoparticles.…”

Section: Iii1 Study Of the Reduction Ewect On The Wo \V Particles Bmentioning

confidence: 97%

“…2c ([010] projection). No evidence for the existence of this phase in the encapsulated nanowhiskers was found in the previous study (5). Furthermore, a W O phase, which consists of PC and HC is known as well (11) and is schematically represented in Fig.…”

Section: Introductionmentioning

confidence: 95%

“…Usually, the encapsulated nanoparticles consisted of more than one oxide nanograin with clear grain boundaries separating the reduced oxide phases (1, 5). On the other hand, some suboxide phases encapsulated inside WS -nanotubes were found to form ordered +001, 0 CS planes (3,5). Careful examination of the encapsulates using high-resolution electron microscopy (HRTEM) revealed that, although the CS were ordered along the growth axis of the encapsulated oxide nanowhisker, the distances between the CS planes were not always constant (3b, 5).…”

Section: Introductionmentioning

confidence: 96%

“…In other cases, the +001, 0 CS formed two or more separated domains within the nanowhisker with a clearly observable boundary separating the two phases. Miyano et al (6) (5). The CS planes are represented through the planes of edge sharing WO octahedra.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Frey

Rothschild

Sloan

et al. 2001

Journal of Solid State Chemistry

173

120

View full text Add to dashboard Cite

Section: Iii1 Study Of the Reduction Ewect On The Wo \V Particles Bmentioning

confidence: 82%

Section: Iii1 Study Of the Reduction Ewect On The Wo \V Particles Bmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Frey

Rothschild

Sloan

et al. 2001

Journal of Solid State Chemistry

173

120

View full text Add to dashboard Cite

Inorganic Nanoparticles with Fullerene‐like Structure and Nanotubes; Some Electrochemical and Photoelectrochemical Aspects

Tenne

2002

Encyclopedia of Electrochemistry

Self Cite

View full text Add to dashboard Cite

The sections in this article are Introduction Classification of the Different Mechanisms for the Folding of Inorganic Compounds, which Yield Close‐cage Structures and Nanotubes Synthesis of Inorganic Nanotubes and Fullerene‐like Nanoparticles Thermodynamic, Structural, and Topological Considerations Physical Properties Band Structure Calculations Optical Studies in the UV and Visible R aman Spectroscopy Mechanical Properties Electrochemistry and Photoelectrochemistry Using IF ‐Materials and Inorganic Nanotubes Electrodeposition of IF ‐ MS 2 (M = W,Mo)Nanoparticles and their Photoelectrochemical Properties Electrochemical Studies with V 2 O 5 and Metallic Nanotubes Applications Conclusion Acknowledgment

show abstract

Localized Exciton Anatomy and BandGap Energy Modulation in 1D MoS₂ Nanostructures

van der Lippe,

Brokkelkamp,

Rojo

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

This study presents an in‐depth investigation of the electronic properties and bandgap energy distribution in 1D molybdenum disulfide (1D‐MoS2) nanostructures. Through a combination of high‐angle annular dark‐field scanning transmission electron microscopy (HAADF‐STEM) and electron energy‐loss spectroscopy (EELS), it reveals significant differences between 1D‐MoS2 nanostructures and their 2D counterparts, shedding light on their localized exciton behavior and their bandgap energy modulation within the nanostructures. Excitonic peaks at around 2 and 3 eV appear localized at the ends or along the sides of the 1D‐MoS2 nanostructures, while the plasmonic resonance at 8.3 eV retains its inner‐region localization. It demonstrates the spatial dependence of the bandgap energy, with the central region exhibiting a bandgap of approximately 1.2 eV, consistent with bulk MoS2, while regions characterized by curvature‐induced local strain fields exhibit instead a noticeable reduction. The findings provide valuable insights into the intricate relationship between excitonic behavior and bandgap sensitivity in 1D‐MoS2 nanostructures, streamlining the design and optimization of nanophotonic and optoelectronic devices.

show abstract

Defect and Ordered Tungsten Oxides Encapsulated Inside 2H–WX2(X=S and Se) Fullerene-Related Structures

Cited by 43 publications

References 34 publications

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Inorganic Nanoparticles with Fullerene‐like Structure and Nanotubes; Some Electrochemical and Photoelectrochemical Aspects

Localized Exciton Anatomy and BandGap Energy Modulation in 1D MoS₂ Nanostructures

Contact Info

Product

Resources

About

Defect and Ordered Tungsten Oxides Encapsulated Inside 2H–WX2(X=S and Se) Fullerene-Related Structures

Cited by 43 publications

References 34 publications

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Investigations of Nonstoichiometric Tungsten Oxide Nanoparticles

Inorganic Nanoparticles with Fullerene‐like Structure and Nanotubes; Some Electrochemical and Photoelectrochemical Aspects

Localized Exciton Anatomy and BandGap Energy Modulation in 1D MoS2 Nanostructures

Contact Info

Product

Resources

About

Localized Exciton Anatomy and BandGap Energy Modulation in 1D MoS₂ Nanostructures