Journal ArticleDOI
Die Kristallstruktur von β‐Al2Te3
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TLDR
The crystal structure of β-Ab2Te3 has been determined by means of single crystal x-ray diffractometry as discussed by the authors, and the examined crystal can be described as a pseudomerohedric twin with a plane of reflection in (001) as twin element.Abstract:
Die Kristallstruktur von β-Al2Te3 konnte auf der Grundlage von Einkristalldaten ermittelt werden. Der vermessene Kristall lag als pseudomeroedrischer Reflektionszwilling nach (001) vor. Die Verfeinerung in P21/c (Nr. 14) mit a - 7,181(1) A, b = 12,848(3) A, c = 14,167(3) A, β = 90,04(2)°, V = 1307,1 A3 und Z = 8 konvergierte gegen einen konventionellen R-Wert von 0,0245. β-Al2Te3 kristallisiert in einer Schichtstruktur und stellt einen neuartigen Strukturtyp dar.
Crystal Structure of β-Al2Te3
The crystal structure of β-Ab2Te3 has been determined by means of single crystal x-ray diffractometry. The examined crystal can be described as a pseudomerohedric twin with a plane of reflection in (001) as twin element. The refinement in P21/c (No. 14) with the crystal parameters a = 7.181(1) A, b = 12.848(3) A. c = 14.167(3) A, β = 90.04(2)°, V = 1307.1 A3 and Z = 8 resulted in a final R-value (based on F) of 0.0245. β-Al2Te3 crystallizes in a layered arrangement and represents a new structure type.read more
Citations
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Journal ArticleDOI
Synthesis and structures of ternary chalcogenides of aluminum and gallium with stacking faults : KMQ2 (M = Al, Ga; Q = Se, Te)
Joonyeong Kim,Timothy Hughbanks +1 more
TL;DR: In this article, the synthesis and crystal structures of new ternary chalcogenides of aluminum and gallium, K MQ 2 (M =Al, Ga; Q =Se, Te) are reported.
Journal ArticleDOI
Sulfur-Enhanced Field-Effect Passivation using (NH4)2S Surface Treatment for Black Si Solar Cells
TL;DR: The optimized (NH4)2S solution treatment significantly enhanced the internal quantum efficiency up to ∼17.2% in the short wavelength region, suggesting suppressed surface recombination.
Journal ArticleDOI
Thermodynamic Description of the Al–X (X = S, Se, Te) Systems
TL;DR: In this paper, a set of thermodynamic parameters describing the Al-X (X = S, Se, Te) binary systems was obtained, and the calculated results for the phase equilibria and thermodynamic properties agree well with literature data.
Book ChapterDOI
Crystal Structure – Idealised
TL;DR: In this paper, the X-ray diffraction properties of elements and inorganic compounds are systematically reviewed, paying special attention to variable-pressure polymorphism, and they can be rationalized in terms of bond valences related to bond distances.
Journal ArticleDOI
Novel field‐effect passivation for nanostructured Si solar cells using interfacial sulfur incorporation
TL;DR: In this paper, annealing in a H2S ambient induced additional negative fixed charges at the interface between atomic-layer-deposited Al2O3 and nanostructured Si.
References
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Journal ArticleDOI
Die pentatelluride m2te5 (m = al, ga, in) : polymorphie, strukturbeziehungen und homogenitatsbereiche
TL;DR: In this paper, the crystal structure of the black solid Al2Te5 is solved by Rietveld refinement of X-ray powder data: a = 1359.29 pm, b = 415.27 pm, c = 983.92 pm, β = 97.39 pm, Z = 4.15 pm, and Z = 2.12 pm.
Journal Article
Refinement of the structure of cubanite, CuFe2S3
TL;DR: In this article, the structure of cubanite, CuFe2S3, was known from an earlier trial-and-error investigation in which the Fe tetrahedra shared an edge giving rise to a short Fe-Fe distance which probably corresponds to a bond.
Journal ArticleDOI
Synthese und Kristallstruktur einer Neuen hexagonalen Modifikation von Al2S3 mit fünffach koordiniertem Aluminium
TL;DR: In this paper, a hexagonale Hochtemperatur-modifikation of Al2S3 is presented, in which a halfte der Aluminiumatome tetraedrisch coordiniert vor [d(AlS): 2,226-2,267 A], wahrend die andere Halfte trigonal-bipyramidal von funf S-Atomen mit AlS-Bindungslangen von 2,272 bis 2,315 A (aquatorial) and 2,495-2.5
Journal ArticleDOI
Tl3Al7S12 — ein neues Al‐reiches Thioaluminat: Darstellung, Kristallstruktur und Eigenschaften
B. Krebs,H. Greiwing +1 more
TL;DR: Tl3Al7S12 as mentioned in this paper is a new ternary compound that was prepared from the binary compounds Tl2S and Al2S3 at 700 °C under vacuum.