RbHgSbTe3 (I), a novel two-dimensional quaternary mercury antimony telluride, was synthesized via an unconventional low-temperature route. Single crystals of I were grown at 180 degrees C from solvothermal reactions using ethylenediamine as solvent. The crystal structure of I was determined by X-ray diffraction methods. The structure belongs to the orthorhombic crystal system, space group Cmcm (no. 63), a = 4.590 (2) Angstrom, b = 15.745 (4) Angstrom, c = 11.737 (2) Angstrom, Z = 4. The crystal structure of this compound consists of two-dimensional layers of (2)(infinity)[HgSbTe3-] with Rb+ counterions located between the layers. Optical studies performed on the powder samples of I suggested that the compound is a narrow-gap semiconductor. A band-gap of 0.2 eV was estimated from its diffuse reflectance spectrum.
A novel two-dimensional mercury antimony telluride: low temperature synthesis and characterization of RbHgSbTe3 / J. Li, Z. Chen, X. Wang, D.M. Proserpio. - In: JOURNAL OF ALLOYS AND COMPOUNDS. - ISSN 0925-8388. - 262(1997), pp. 28-33.
|Titolo:||A novel two-dimensional mercury antimony telluride: low temperature synthesis and characterization of RbHgSbTe3|
PROSERPIO, DAVIDE MARIA (Ultimo)
|Parole Chiave:||mercury antimony telluride; solvothermal reaction; layered structure|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||1997|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/S0925-8388(97)00324-1|
|Appare nelle tipologie:||01 - Articolo su periodico|