143765-05-3Relevant articles and documents
Antimony sources for MOCVD. The use of Et4Sb2 as a p-type dopant for Hg1-xCdxTe and crystal structure of the adduct n
Dickson, Ron S.,Heazle, Kerryn D.,Pain, Geoff N.,Deacon, Glen B.,West, Bruce O.,et al.
, p. 131 - 139 (1993)
Tetraethyldistibine, Et4Sb2, a new antimony source for MOCVD is evaluated.It is shown to be a useful and safe dopant feedstock for low temperature growth of p-type Hg1-xCdxTe.Attempted purification of Et4Sb2 by adduct formation with CdI2 resulted in isolation of a polymeric chain adduct n (1).The structure of 1 has been determined by X-ray crystallography and consists of chains of iodide-bridged Et4Sb2 * 2CdI2 units which have CdI2 bonded to each antimony atom.Antimony and two iodine atoms form a trigonal planar arrangement around cadmium, and two weak axial bonds to the iodine atoms of adjacent units give distorted trigonal bipyramidal coordination to cadmium.The distibine molecules display a skew configuration of the ethyl substituents.The SbII-SbII and SbII-CdII distances are 2.784(2) and 2.822(2) Angstroem respectively.Dropwise addition of Me2Cd to Et4Sb2 in the absence of solvent gave an insoluble 1:1 adduct.Et4Sb2 reacts with Te but not with Cd or Hg.
The assessment of some Sb-Te single-source compounds for MOCVD applications
Dickson, Ron S.,Heazle, Kerryn D.
, p. 189 - 198 (2007/10/02)
The new compounds Et2SbTeEt, Me2SbTeEt, Et2SbTeiPr and Et2AsTeEt have been prepared by reactions of Et4Sb2, Me4Sb2 or Et4As2 with iPr2Te2 or Et2Te2.An alternative route to Et2SbTeEt involved the reaction of Et2SbBr with EtTeLi.The compounds are light sensitive, and some of them cannot be obtained pure because of facile radical decomposition or reverse dissociation to the corresponding R4E2 and R'2Te2.Thermal degradation of Et2SbTeEt in a hydrogen stream under conventional MOCVD condition gives a metal deposit containing Sb and Te in the ratio 1.6:1.The related compound Et2SbTeSbEt2 reacts with H2 at room temperature to give Te metal and presumably HSbEt2. Keywords: Antimony; Arsenic; Tellurium; MOCVD
