Colloidal synthesis of CdTe nanoplatelets using various cadmium precursors


Akhmetova A.S. Daurenbekov D.H. Kainarbay A.Z. Nurakhmetov N. Eliseev A.A.
September 2022Elsevier B.V.

Optical Materials
2022#131

Two-dimensional (2D) CdTe nanoplatelets were synthesized using cadmium propionate, acetate and myristate precursors. Growth of nanoplatelets within the temperature range of 180–250 °C was monitored with optical absorption, PL spectroscopy and transmission electron microscopy. Continuous growth of NPLs was observed for hydrophobic propionate and myristate precursors at low temperatures, while in the presence of cadmium acetate Ostwald ripening occurs at high growth temperature. It is shown that zinc blende CdTe nanoplatelets with (00l) truncation axis grow by lateral expansion with oriented attachment mechanism. The presence of monomers is considered of major importance for oriented attachment. The growth conditions and duration time were optimized to provide homogeneous CdTe nanoplates.

Absorbance , Colloidal synthesis , Electron diffraction , Luminescence , Nanoplatelets , Semiconductor , TEM

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L.N. Gumilyov Eurasian National University, Satpayev Str., 2, Nur-Sultan, Kazakhstan
Department of Materials Science, M.V. Lomonosov Moscow State University, Leninskiye Gory, 1, Moscow, Russian Federation

L.N. Gumilyov Eurasian National University
Department of Materials Science

10 лет помогаем публиковать статьи Международный издатель

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