Phase diagram of the CdP2-CdAs2 system

Rubtsov, V. A.; Smolarenko, E. M.; Трухан, В. М.; Yakimovich, V. N.; Orlik, L. K.

doi:10.1002/pssa.2211150238

Cited by 4 publications

(9 citation statements)

References 2 publications

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“…1c) with no bond length alteration and a slightly different arrangement of the Cd substructure than observed in a-CdP 2 . Surprisingly, a a-CdAs 2 -type CdP 2 polymorph does not exist till now -a solid solution a-CdAs 2Àx P x has only been realized up to 16 We therefore started systematic investigations to close this gap to x ¼ 0.2 and call this new phase a 0 -CdP 2 from now on.…”

Section: Resultsmentioning

confidence: 97%

“…It represents the former unknown end member of a solid solution CdAs 2Àx P x (0 < x < 1.8), 16 which was reported in 1989 (see Fig. 2).…”

Section: Structural Characterization and Elemental Analysis Of A 0 -Cmentioning

confidence: 96%

“…Cell volumes of the solid solution CdAs 2Àx P x derived from literature [ref 16]. for 0 < x < 1.8 and from single-crystal X-ray experiments for x ¼ 2.…”

mentioning

confidence: 99%

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Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases

et al. 2015

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Solids with high ion mobility are of broad interest for energy storage applications. New systems featuring low-activated ion mobility are important to improve the performance in such systems. Herein we report on a model system dealing with such improved properties. Li 0.2 CdP 2 was synthesized from the elements, lithium as structure stabilizer and CdI 2 as reaction promoters in sealed silica ampoules at 823 K. It crystallizes tetragonal, in space group I4 1 22 (a-CdAs 2 structure type), with lattice parameters a ¼ 7.6691(8)Å, c ¼ 4.4467(4)Å and V ¼ 261.53(4)Å 3 . After 24 h of storage in air lithium ions can be removed in a spontaneous delithiation reaction resulting in Li(OH)$H 2 O formation on the surface of the crystals. Formed a 0 -CdP 2 adopts the a-CdAs 2 structure type. Both compounds consist of isolated cadmium atoms and helical 1 N [P À ]-chains generating empty channels suitable to accommodate Li ions. The heavy atom structure was determined by X-ray diffraction methods while a full model including lithium was derived from a combined solid state NMR and quantum chemical calculation approach. An low activation barrier range in the order of 0.1 to 0.2 eV was determined by NMR spectroscopy pointing towards an extraordinary high Li mobility in Li 0.2 CdP 2 . Of course a Cd-based solid will have certain disadvantages like toxicity and mass for storage applications but substitution of Cd by suitable lighter elements can solve this issue.

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Section: Resultsmentioning

confidence: 97%

“…It represents the former unknown end member of a solid solution CdAs 2Àx P x (0 < x < 1.8), 16 which was reported in 1989 (see Fig. 2).…”

Section: Structural Characterization and Elemental Analysis Of A 0 -Cmentioning

confidence: 96%

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Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases

et al. 2015

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“…From data on the phase equilibria in the P-Zn-As, P-Cd-As [3], Zn-P-Cd [4], and CdP 4 -ZnP 2 -CdP 2 -CdAs 2 [5] systems and the phase diagrams of the ZnP 2 -CdP 2 and CdP 2 -CdAs 2 systems [6,7], it has been inferred that the stable Zn-Cd-P-As phase diagram includes neither tetragonal zinc diphosphide ZnP 2 ( = P4 1 2 1 2), nor orthorhombic cadmium diphosphide CdP 2 (sp. gr.…”

Section: Methodsmentioning

confidence: 99%

Compounds and solid solutions of the Zn-Cd-P-As system in semiconductor electronics

2014

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Using the constructed pseudobinary joins and phase equilibria in the Zn-Cd-P-As system, we have determined the stability regions and space groups of ternary and quaternary solid solutions. Evidence is presented that orthorhombic cadmium diphosphide does not exist. Based on detailed studies of the physico chemical properties of II-V crystals, we have proposed and fabricated a number of electronic devices.

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“…The known structures of the 3:2 compounds are without exception based on cubic close packing of the pnictide with Zn and Cd in the tetrahedral interstices. The complexity of the systems is astounding; Zn 3 As 2 alone has been reported to have six different modifications, namely; the two different cubic modifications isotypic with Na 2 O [1] (Pearson symbol cF10) and Mg 3 N 2 [2] (cI80) and the four tetragonal modifications isotypic with Zn 3 P 2 [3] (tP40), Be 3 P 2 [4] (tI160), Cd 3 As 2 (tI160) and Zn 3 As 2 [5] (tP160). The situation is similar for Cd 3 As 2 [6].…”

Section: Introductionmentioning

confidence: 99%

The incommensurably modulated structure of ζ-Zn3−xSb2

Boström

Lidin

2004

Journal of Alloys and Compounds

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Phase diagram of the CdP2-CdAs2 system

Cited by 4 publications

References 2 publications

Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases

Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases

Compounds and solid solutions of the Zn-Cd-P-As system in semiconductor electronics

The incommensurably modulated structure of ζ-Zn3−xSb2

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Phase diagram of the CdP2-CdAs2 system

Cited by 4 publications

References 2 publications

Low-activated Li-ion mobility and metal to semiconductor transition in CdP2@Li phases

Low-activated Li-ion mobility and metal to semiconductor transition in CdP2@Li phases

Compounds and solid solutions of the Zn-Cd-P-As system in semiconductor electronics

The incommensurably modulated structure of ζ-Zn3−xSb2

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Product

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About

Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases

Low-activated Li-ion mobility and metal to semiconductor transition in CdP₂@Li phases