Dimensional reductions from 2-D Nb4P2S21 to 1-D ANb2PS10 (A=Na, K, Rb, Cs, Tl) and to 0-D Tl5[Nb2S4Cl8]Cl using halide molten salts

Bang, Hyunjin; Kim, Youngmee; Kim, Seri; Kim, Sung Jin

doi:10.1016/j.jssc.2008.03.040

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…The terminal S atoms of [VS 5 ] units show an up-down-up orientation along [100]. The structural features of the other known vanadium containing thiophosphates K 4 V 2 (PS 4 ) 2 (P 2 S 6 ) (1D), 59 NaV 0.84 P 2 S 6 (1D), 60 and 2D-AVP 2 S 7 (A ¼ K, Rb, Cs) [61][62][63] The heavier homologues Nb and Ta give rise to a large variety of structure types, and the most interesting compounds are ANb 2 PS 10 (A ¼ Na, Ag, K, Rb, Cs, Tl), [64][65][66][67][68] [69][70][71] ANb 2 P 2 S 12 (A ¼ K, Rb, Cs), 72 Rb 2 Nb 2 P 2 S 11 , 73 Ag 2 NbP 2 S 8 , 74 A x TaPS 6 (A ¼ K, Rb; x ¼ 0.09-0.46), 75,76 A 0.42 TaPS 5 (A ¼ K, Rb), 77 A 4 Ta 4 P 4 S 24 (A ¼ K, Rb, Cs), [78][79][80] Cs 2 Ta 2 P 2 S 12 , 80 and CsTa 4 P 3 S 19 . 81 The main structural feature of all the above mentioned Nb thiophosphates except Rb 2 Nb 2 P 2 S 11 is the [Nb 2 S 12 ] unit, whereas most Ta thiophosphates contain the [Ta 2 S 11 ] group.…”

Section: Structural Diversity Of Quaternary Group 5 Thiophosphatesmentioning

confidence: 99%

“…In the A-Nb-P-S system, a change in the alkali cation size does not cause a transition of dimensionality. ANb 2 PS 10 (A ¼ Na, Ag, K, Rb, Cs, Tl), [64][65][66][67][68] and the closely related compounds A 1Àx M x Nb 2 -PS 10 (A ¼ K, Rb; M ¼ Cu, Ag) 69-71 consist of complex one-dimensional anionic 4d 1 electronic configuration of Nb IV in a D 3h crystal field. In the chains a sequence of alternating short Nb/Nb ($2.9…”

Section: Structural Diversity Of Quaternary Group 5 Thiophosphatesmentioning

confidence: 99%

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Structural diversity of rare earth and transition metal thiophosphates

Bensch

2010

CrystEngComm

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Technological interest in the design of solid state materials has stimulated recent research into the development of mild molten polychalcophosphate salt fluxes for the synthesis of complex, multinary rare earth and transition metal thiophosphate compounds. The reaction pathways from elemental or metal sulfide sources can be influenced by a variety of often interdependent factors of which counter cation sizes and charges, basicity, and temperature are of paramount importance. In rare earth and transition metal containing thiophosphates the dominating structural building units are tetrahedral [PS 4 ] 3À or ethane-like [P 2 S 6 ] 4À anions. Hierarchical topological relations between individual members of structural families of the type A m M n P y S z (A ¼ alkali metal, M ¼ rare earth or transition metal) can be established that provide a detailed insight into probable mechanisms of formation. The findings enable the development of guidelines for the employment of suitable counter cations in controlling the condensation of small species into chains, layers or frameworks.

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Section: Structural Diversity Of Quaternary Group 5 Thiophosphatesmentioning

confidence: 99%

Section: Structural Diversity Of Quaternary Group 5 Thiophosphatesmentioning

confidence: 99%

Structural diversity of rare earth and transition metal thiophosphates

Bensch

2010

CrystEngComm

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“…Interestingly, various (P-S) ligands can also link other building motifs to compose different structural features including zero-dimensional (0D) clusters, 1D chains, 2D layers and 3D networks. In view of the principle 'structure determines performance,' thiophosphates possess strong physicochemical performance and many application regions according to their different crystal structures [10,11,13], which provides clear recognition of an inherent structure-performance relationship for thiophosphates; the above survey results also illustrate that thiophosphates have huge potential as multifunctional materials [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 92%

A review of the structural diversity of [P _x S _y ] ⁿ ⁻ motifs and their potential application prospects in metal thiophosphates

Yang¹,

Song²,

Wu³

et al. 2021

J. Phys. D: Appl. Phys.

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Metal thiophosphates have wide potential critical applications in various fields, such as nonlinear optical materials, magnetic materials, photoluminescence materials and solid electrolytes. However, a detailed review of the relationship among structure, performance and application in thiophosphates has not been reported so far. In this work, we have undertaken integrated generalization for the structural features and application prospects of 312 known metal thiophosphates (117 ternary and 195 quaternary). A survey of their crystal structures shows that they have various link modes used to form the [P x S y ] n − ligands through the [PS4]3− building unit, for example, the ethane-like [P2S6]4− dimer, edge-sharing [P2S6]2−, corner-sharing [P2S7]4−, cyclic [P3S9]3− cluster, corner-sharing [P3S10]5− cluster, corner-sharing [P4S13]6− cluster and corner-sharing [P4S12]4− ring. Interestingly, various (P-S) ligands can also link other motifs to compose different structural features including zero-dimensional (0D) clusters, 1D chains, 2D layers and 3D networks. A detailed survey provides clear recognition of the inherent structure–performance relationship for thiophosphates and this result also illustrates that thiophosphates have huge potential as superior multifunctional materials.

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“…最近, 研究报道了基于[Nb 2 PS 10 ] 链通过连接堆垛而成的准一维范德瓦耳斯层状材料Nb 4 P 2 S 21 , 其在可见光光电器件和NO 2 气体传感器等器件表现出较好的性能 [27] . 与Sb 2 S 3 [28] 和NiPS 3 [29] ]链通过中间四个-S-S-键连接形成一个基本结构单元 [30]…”

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In-plane optical anisotropy of quasi-one-dimensional layered semiconductor Nb4P2S21 single crystal

Cheng,

Huang,

et al. 2023

Acta Phys. Sin.

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Transition-metal phosphorous chalcogenide MPS (M = transition metal), an emerging type of two-dimensional (2D) van der Waals material with the unique optical and opto-electronic properties, has received much attention. The quasi-one-dimensional chain structure of Nb4P2S21 will possess the strong anisotropic optical and photoelectric properties. Therefore, the single crystal and low-dimensional materials of Nb4P2S21 have potential applications in new polarization controllers, polarization-sensitive photoelectronic detectors, etc. However, there is still a lack of research on the anisotropic optical properties of the high-quality Nb4P2S21 single crystals. Herein, the millimeter-sized Nb4P2S21 single crystals are successfully prepared by the chemical vapor transport method. The chemical composition, the crystal structure and the anisotropic optical properties of the Nb4P2S21 single crystals are carefully analyzed. The energy dispersive X-ray spectroscopy results show that the element distribution is uniform and the element ratio is close to the stoichiometric ratio. The X-ray diffraction and the transmission electron microscopy results show a good crystallinity. The absorption spectra shows that the optical band gap of the Nb4P2S21 single crystal is 1.8 eV. Interestingly, the Nb4P2S21 single crystal can be mechanically exfoliated to obtain few-layer material. The thickness-dependent Raman spectra show that the Raman vibration peaks of bulk and few-layer Nb4P2S21 each have only a weak shift, indicating a weak interlayer interaction in the Nb4P2S21 single crystal. In order to make an in-depth study of the optical properties of Nb4P2S21 single crystals, the polarized-dependent Raman spectra and the femtosecond transient absorption (TA) spectra by using pump pulses and probe pulses with a wavelength of 400 nm and a wavelength range of 500–700 nm are recorded. Importantly, the polarized-dependent Raman scattering spectra with the angle-dependent measurements reveal that the intensity of Raman peak at 202 cm–1 and at 489 cm–1 show a 2-fold symmetry and a 4-fold symmetry in the parallel and vertical polarization configurations, respectively. Moreover, the results of ultrafast carrier dynamics with the in-plane rotation angles of Nb4P2S21 single crystals in the parallel polarization configurations, clearly indicate that both the hot carrier number and the relaxation rate after photoexcitation have the in-plane anisotropic properties. These results are useful in understanding the in-plane anisotropic optical properties of Nb4P2S21 single crystal, which can further promote their applications in the low-dimensional angle-dependent optoelectronics.

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Dimensional reductions from 2-D Nb4P2S21 to 1-D ANb2PS10 (A=Na, K, Rb, Cs, Tl) and to 0-D Tl5[Nb2S4Cl8]Cl using halide molten salts

Cited by 13 publications

References 21 publications

Structural diversity of rare earth and transition metal thiophosphates

Structural diversity of rare earth and transition metal thiophosphates

A review of the structural diversity of [P _x S _y ] ⁿ ⁻ motifs and their potential application prospects in metal thiophosphates

In-plane optical anisotropy of quasi-one-dimensional layered semiconductor Nb<sub>4</sub>P<sub>2</sub>S<sub>21</sub> single crystal

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Dimensional reductions from 2-D Nb4P2S21 to 1-D ANb2PS10 (A=Na, K, Rb, Cs, Tl) and to 0-D Tl5[Nb2S4Cl8]Cl using halide molten salts

Cited by 13 publications

References 21 publications

Structural diversity of rare earth and transition metal thiophosphates

Structural diversity of rare earth and transition metal thiophosphates

A review of the structural diversity of [P x S y ] n − motifs and their potential application prospects in metal thiophosphates

In-plane optical anisotropy of quasi-one-dimensional layered semiconductor Nb<sub>4</sub>P<sub>2</sub>S<sub>21</sub> single crystal

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A review of the structural diversity of [P _x S _y ] ⁿ ⁻ motifs and their potential application prospects in metal thiophosphates