TY - JOUR
T1 - Ultrathin nanoparticle ZnS and ZnS
T2 - The European Materials Research Society 1999 Spring Meeting, Symposium I: Microcrystalline and Nanocrystalline Semiconductors
AU - Kovtyukhova, N. I.
AU - Buzaneva, E. V.
AU - Waraksa, C. C.
AU - Mallouk, T. E.
N1 - Funding Information:
This work has in part been supported by Civilian Research and Development Foundation, USA. Grant UC1-338. Work at Pennsylvania State University was supported by ARO grant DAAH04-96-1-0180. Instrumentation for AFM experiments was provided by National Science Foundation grant CHE-9626326.
PY - 2000/1/14
Y1 - 2000/1/14
N2 - Ultrathin films of ZnS and Mn-doped ZnS were grown on silicon substrates using surface sol-gel reactions, and the film growth process was characterized by ellipsometry, atomic force microscopy, X-ray photoelectron spectroscopy, UV-visible absorbance and photoluminescence (PL) spectroscopy. The Si substrates were pre-treated by chemical oxidation. On the oxidized Si/SiOx surface, nanoparticulate films of ZnS and Mn-doped ZnS were grown by sequential immersion in aqueous metal acetate and sodium sulfide solutions. During the first four adsorption cycles, there was little film growth, but thereafter the amount of material deposited was linear with the number of adsorption cycles. This behavior is consistent with the formation of ZnS nuclei at low coverage, followed by particle growth in subsequent cycles. PL spectra are consistent with incorporation of Mn2+ into the ZnS nanoparticles.
AB - Ultrathin films of ZnS and Mn-doped ZnS were grown on silicon substrates using surface sol-gel reactions, and the film growth process was characterized by ellipsometry, atomic force microscopy, X-ray photoelectron spectroscopy, UV-visible absorbance and photoluminescence (PL) spectroscopy. The Si substrates were pre-treated by chemical oxidation. On the oxidized Si/SiOx surface, nanoparticulate films of ZnS and Mn-doped ZnS were grown by sequential immersion in aqueous metal acetate and sodium sulfide solutions. During the first four adsorption cycles, there was little film growth, but thereafter the amount of material deposited was linear with the number of adsorption cycles. This behavior is consistent with the formation of ZnS nuclei at low coverage, followed by particle growth in subsequent cycles. PL spectra are consistent with incorporation of Mn2+ into the ZnS nanoparticles.
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U2 - 10.1016/S0921-5107(99)00312-8
DO - 10.1016/S0921-5107(99)00312-8
M3 - Conference article
AN - SCOPUS:0033903074
SN - 0921-5107
VL - 69
SP - 411
EP - 417
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Y2 - 1 June 1999 through 4 June 1999
ER -