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Polytypic metal chalcogenide nanocrystals
Chemical Society ReviewsA comprehensive overview of the recent progress in colloidal PMC nanocrystals, including polytypic II–VI nanocrystals as well as polytypic Cu-based ternary and quaternary chalcogenide nanocrystals.
Liang Wu +3 more
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Geometrical structure and metal-metal bonding in niobium chalcogenides and chalcogenide halides
Journal of Physics C: Solid State Physics, 1980An atomic orbital study is presented for the electronic structure of NbS2Cl2, NbSe2Cl2, Nb3Se5Cl7, Nb2Se9 and I0.33NbSe4. Each crystal structure is built up from Nb2X4 clusters (X=S,Se) containing a strong metal-metal bond. Band structures and densities of states are displayed and interpreted in terms of the different geometrical arrangements of the ...
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Atomic Engineering of Chalcogenide Layer in Transition Metal Chalcogenides
ECS Meeting Abstracts, 2017Atomically thin transition metal chalcogenides (TMDs), members of two-dimensional (2D) material family, have received great attention due to their novel optoelectronic and electronic properties. CVD technique have been well developed to synthesize monolayer TMDs, such as MoS2, WS2, WSe2, and MoSe2 where transition metals are sandwiched by the same ...
Chih-Wen Yang, Ang-Yu Lu, Lain-Jong Li
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A highly reactive chalcogenide precursor for the synthesis of metal chalcogenide quantum dots
Nanoscale, 2015Metal chalcogenide semiconductor nanocrystals (NCs) are ideal inorganic materials for solar cells and biomedical labeling. In consideration of the hazard and instability of alkylphosphines, the phosphine-free synthetic route has become one of the most important trends in synthesizing selenide QDs.
Peng, Jiang +5 more
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CVD of metal chalcogenide films
Le Journal de Physique IV, 1999The preparation of SnE, Ag 2 E and Cu 2 E (E = Se, Te) thin films by Chemical Vapor Deposition (CVD) and Vapor Phase Transport (VPT) has been studied. The precursors, [Sn{(SiMe 3 ) 2 CH} 2 (μ-E)] 2 (E = Te, Se), have been studied for the deposition of SnE films.
I. S. Chuprakov, K. H. Dahmen
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Chalcogens and Metal Chalcogenides
2010It is common that the three heaviest elements of the sulfur sub-group, namely selenium, tellurium, and polonium, be collectively referred to as the “chalcogens,” and the term chalcogen be addressed only for these elements – in practice, only for the chemically and technologically important selenium and tellurium; however, according to the official ...
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Superconductivity in transition metal chalcogenides
Physica B+C, 1981Abstract The upper critical field anisotropy H C2‖ H C2⊥ has been studied in 2H-TaS2 intercalated with methylamine and pyridine, and comparison to theoretical models predicting dimensional crossover has been made. The temperature dependence of HC2‖ shows upward curvature over a substantial range of temperature below Tc, and good ...
R.V. Coleman, S.J. Hillenius
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Chemistry of Chalcogenides and Transition Metals
2016The lone-pair electrons of chalcogen atoms and the presence of d-orbitals of transition metal atoms determine the rich chemistry of transition-metal dichalcogenides. This Chapter presents a brief overview of the fundamental concepts that are needed to understand the chemistry of these materials.
Alexander V. Kolobov, Junji Tominaga
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A novel metal chalcogenide: HgCd4S5
Russian Journal of Inorganic Chemistry, 2011A novel metal chalcogenide HgCd4S5 (1) was synthesized from solid-state reactions and structurally characterized. Compound 1 crystallizes in the space group C2221 of the orthorhombic system with four formula units in a cell: a = 12.5661(5) A, b = 7.2551(5) A, c = 10.7520(7) A, V = 980.2(1) A3, Cd4HgS5, M r
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