ANTIMONY-TELLURIUM PRECURSORS

DIALKYLANTIMONY ALKYLTELLUROLATES

Diethylantimony ethyltellurolate Et2SbTeEt

     Diethylantimony ethyltellurolate Et2SbTeEt, a new compound having Sb-Te bond, was synthesized in 2 ways: either by conproportionation reaction of Et4Sb2 with Et2Te2, or alternatively by  metathesis of Et2SbBr with EtTeLi. Et2SbTeEt is a light sensitive compound.

     Et2SbTeEt was applied as single source Sb-Te precursors for the deposition of metal-like deposit containing Sb and Te in the ratio 1.6:1 by thermal MOCVD, using H2 carrier gas, under conventional MOCVD conditions.[i]

    The related compound Et2SbTeSbEt2 reacted with H2 at room temperature, producing  Te metal films  and presumably HSbEt2.

[i] Ron S. Dickson, Kerryn D. Heazle, J. Organomet. Chem., 1995, vol. 493, Iss. 1–2, p. 189-197, https://doi.org/10.1016/0022-328X(94)05327-8, www.sciencedirect.com/science/article/pii/0022328X94053278 The assessment of some Sb-Te single-source compounds for MOCVD applications

ANTIMONY(III) IMINO-BIS(DIALKYLPHOSPHINE) TELLURIDES

Sb[(TePiPr2)2N]3 for Sb2Te3 by AACVD

       Sb[(TePiPr2)2N]3 was applied as Sb-Te precursor for the growth of pure hexagonal Sb2Te3 nanoplates on glass substrates by aerosol-assisted chemical vapor deposition (AACVD) at temperatures 375-475 °C. The prepared nanoplates have a  potential for application for  novel nanodevices due to their enhanced thermoelectric properties.[i]

[i] Sh.S. Garje, D.J. Eisler, J.S. Ritch, M. Afzaal, P. O'Brien, T. Chivers, J. Am. Chem. Soc., 2006, 128 (10), pp 3120–3121, DOI: 10.1021/ja0582408, https://pubs.acs.org/doi/abs/10.1021/ja0582408 , « A New Route to Antimony Telluride Nanoplates from a Single-Source Precursor »

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