Abstract
The synthesis of the isomorphous, layered chalcogenides K 2Cd3S4 (I), Rb2Cd3S 4 (II), K2Cd3Se4 (III), Rb 2Cd3Se4 (IV), and K2Cd 3Te4 (V) in molten A2Qx fluxes is reported (A = K, Rb; Q = S, Se, Te; x = 2 to 3). The compounds form as (Cd 3Q4)n 2n- layers interspersed with A+ cations; the layers are composed of Cd3Q 4 2- units shaped as truncated cubes. The compounds have room-temperature band gaps of 2.75, 2.92, 2.36, 2.37, and 2.26 eV for I, II, III, IV, and V, respectively, and also display strong photoluminescence. The thermal analysis data for all compounds are reported. The properties of these compounds are compared with those of the three-dimensional compounds CdS, CdSe, and CdTe, as well as those of the nanometer-sized CdQ clusters. A conceptual context is presented to connect all these different types of compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 656-666 |
| Number of pages | 11 |
| Journal | Chemistry - A European Journal |
| Volume | 2 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1996 |
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Keywords
- Cadmium compounds
- Chalcogen compounds
- Crystal structure
- Dimensionality
- Photoluminescence
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Dimensional reduction in II-VI materials : A2Cd3Q 4 (A = K, Q = S, Se, Te; A = Rb, Q = S, Se), novel ternary low-dimensional cadmium chalcogenides produced by incorporation of A 2Q in CdQ. / Axtell, Enos A.; Liao, Ju Hsiou; Pikramenou, Zoe; Kanatzidis, Mercouri G.
In: Chemistry - A European Journal, Vol. 2, No. 6, 1996, p. 656-666.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dimensional reduction in II-VI materials
T2 - A2Cd3Q 4 (A = K, Q = S, Se, Te; A = Rb, Q = S, Se), novel ternary low-dimensional cadmium chalcogenides produced by incorporation of A 2Q in CdQ
AU - Axtell, Enos A.
AU - Liao, Ju Hsiou
AU - Pikramenou, Zoe
AU - Kanatzidis, Mercouri G
PY - 1996
Y1 - 1996
N2 - The synthesis of the isomorphous, layered chalcogenides K 2Cd3S4 (I), Rb2Cd3S 4 (II), K2Cd3Se4 (III), Rb 2Cd3Se4 (IV), and K2Cd 3Te4 (V) in molten A2Qx fluxes is reported (A = K, Rb; Q = S, Se, Te; x = 2 to 3). The compounds form as (Cd 3Q4)n 2n- layers interspersed with A+ cations; the layers are composed of Cd3Q 4 2- units shaped as truncated cubes. The compounds have room-temperature band gaps of 2.75, 2.92, 2.36, 2.37, and 2.26 eV for I, II, III, IV, and V, respectively, and also display strong photoluminescence. The thermal analysis data for all compounds are reported. The properties of these compounds are compared with those of the three-dimensional compounds CdS, CdSe, and CdTe, as well as those of the nanometer-sized CdQ clusters. A conceptual context is presented to connect all these different types of compounds.
AB - The synthesis of the isomorphous, layered chalcogenides K 2Cd3S4 (I), Rb2Cd3S 4 (II), K2Cd3Se4 (III), Rb 2Cd3Se4 (IV), and K2Cd 3Te4 (V) in molten A2Qx fluxes is reported (A = K, Rb; Q = S, Se, Te; x = 2 to 3). The compounds form as (Cd 3Q4)n 2n- layers interspersed with A+ cations; the layers are composed of Cd3Q 4 2- units shaped as truncated cubes. The compounds have room-temperature band gaps of 2.75, 2.92, 2.36, 2.37, and 2.26 eV for I, II, III, IV, and V, respectively, and also display strong photoluminescence. The thermal analysis data for all compounds are reported. The properties of these compounds are compared with those of the three-dimensional compounds CdS, CdSe, and CdTe, as well as those of the nanometer-sized CdQ clusters. A conceptual context is presented to connect all these different types of compounds.
KW - Cadmium compounds
KW - Chalcogen compounds
KW - Crystal structure
KW - Dimensionality
KW - Photoluminescence
UR - http://www.scopus.com/inward/record.url?scp=0000510652&partnerID=8YFLogxK
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U2 - 10.1002/chem.19960020609
DO - 10.1002/chem.19960020609
M3 - Article
VL - 2
SP - 656
EP - 666
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 6
ER -