Shape and Phase Control of Colloidal ZnSe Nanocrystals
| Autor: | Cozzoli P.D. 1, Manna L. 2, Curri M.L. 3, Kudera S. 4, Giannini C. 5, Striccoli M. 3, Agostiano A. 1, 3 P. Davide Cozzoli, Liberato Manna, M. Lucia Curri, Stefan Kudera, Marinella Striccoli, Angela Agostiano |
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| Přispěvatelé: | Cozzoli, Pantaleo Davide, L., Manna, M. L., Curri, S., Kudera, C., Giannini, M., Striccoli, A., Agostiano |
| Rok vydání: | 2005 |
| Předmět: |
optical properties
Materials science surfactant nucleation growth General Chemical Engineering Nucleation chemistry.chemical_element General Chemistry Zinc Rod phase control Crystallography chemistry.chemical_compound Colloid Monomer chemistry Chemical engineering Nanocrystal ZnSe nanocrystal Materials Chemistry SPHERES shape control Wurtzite crystal structure |
| Zdroj: | Chemistry of materials 17 (2005): 1296–1306. doi:10.1021/cm047874v info:cnr-pdr/source/autori:Cozzoli P.D. 1, Manna L. 2, Curri M.L. 3, Kudera S. 4, Giannini C. 5, Striccoli M. 3, Agostiano A. 1,3 P. Davide Cozzoli, Liberato Manna, M. Lucia Curri, Stefan Kudera,| Cinzia Giannini, Marinella Striccoli and Angela Agostiano/titolo:Shape and Phase Control of Colloidal ZnSe Nanocrystals/doi:10.1021%2Fcm047874v/rivista:Chemistry of materials/anno:2005/pagina_da:1296/pagina_a:1306/intervallo_pagine:1296–1306/volume:17 |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | Shape- and phase-controlled ZnSe nanocrystals are synthesized in hot mixtures of long-chain alkylamines and alkylphosphines. The variation in the rate of precursor addition, down to low and controlled levels, allows the nucleation, as well as the growth of the nanocrystals, to switch between the wurtzite and the zinc blend structures. Such a level of control leads to a variety of shapes, from spheres to rods to three-dimensional structures formed by rod sections interconnected through branching points. The temperature- and time-dependence of the chemical potentials for the monomer species in solution are the most relevant parameters involved in the growth mechanism. |
| Databáze: | OpenAIRE |
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