Room-Temperature Organometallic Synthesis of Soluble and Crystalline ZnO Nanoparticles of Controlled Size and Shape

Angewandte Chemie - International Edition

Volumn 42, Issue 43, 2003, Pages 5321-5324

  Monge, Miguel ^a   Kahn, Myrtil L ^a   Maisonnat, André ^a   Chaudret, Bruno ^a  

^a LCC LABORATOIRE DE CHIMIE DE COORDINATION   (France)

Author keywords

Colloids; Luminescence; Nanomaterials; Oxides; Zinc

Indexed keywords

CRYSTALLINE MATERIALS; ORGANIC SOLVENTS; ORGANOMETALLICS; OXIDATION; PARTICLE SIZE ANALYSIS; PHOTOLUMINESCENCE; SYNTHESIS (CHEMICAL); ZINC OXIDE;

ROOM TEMPERATURE;

NANOSTRUCTURED MATERIALS;

ORGANOMETALLIC COMPOUND; ZINC OXIDE;

ARTICLE; CHEMOLUMINESCENCE; CONCENTRATION (PARAMETERS); CRYSTAL STRUCTURE; NANOPARTICLE; PARTICLE SIZE; ROOM TEMPERATURE; SOLUBILITY; TRANSMISSION ELECTRON MICROSCOPY; VAPORIZATION; X RAY DIFFRACTION;

EID: 0344875950     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200351949     Document Type: Article

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25. -1 leads to nano-objects of higher aspect ratio. Exchanging THF for toluene or heptane produces nanoparticles of isotropic morphology with mean diameters of 4.6 and 2.4 nm, respectively. A slow oxidation/evaporation process in THF (2 weeks) produces only nanodisks of very homogeneous size (4.1 nm; see Figure 1b). Reducing the reaction time under argon to 5 min, prior to oxidation leads to shorter nanorods ≈5.8 x 2.7 nm in size. Increasing the reaction temperature leads to isotropic disk-shaped nano-objects. Exchanging HDA for dodecylamine (DDA) or octylamine (OA) also leads to disks with mean diameters of 3.0 and 4.0 nm, respectively (Figure 1c and d). Finally, in the absence of solvent, mixing equimolar amounts of 1 and an amine (HDA, DDA, or OA) yields nanorods of 10.7 x 1.6, 9.2 x 3.7, and 7.4 x 2.8 nm, respectively. In this case, doubling the concentration of amine relative to zinc has little effect for HDA but produces nanorods of 17.1 x 3.0 nm or 36.9 x 2.8 nm in the case of DDA and OA, respectively (see Figure 2).
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