PROCESS FOR MANUFACTURING COLLOIDAL NANOSHEETS BY LATERAL GROWTH OF NANOCRYSTALS
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Abstract
A process for manufacturing colloidal nanosheet, by lateral growth, on an initial colloidal nanocrystal, of a crystalline semiconductor material represented by the formula MnXy, where M is a transition metal and X a chalcogen. The process includes the following steps: The preparation of a first organic solution, non or barely coordinating used as a synthesis solvent and including at least one initial colloidal nanocrystal; The preparation of a second organic solution including precursors of M and X, and including an acetate salt. And the slow introduction over a predetermined time scale of a predetermined amount of the second solution in a predetermined amount of the first solution, at a predetermined temperature for the growth of nanosheets. The use of the obtained material is also presented.
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Citations
45 Claims
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1-29. -29. (canceled)
- 30. A colloidal nanosheet comprising one initial colloidal nanocrystal extended laterally, and not in the thickness, by a different crystalline semiconductor material represented by the formula MnXy, wherein M is a transition metal and X a chalcogen.
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36. A method for manufacturing colloidal nanosheets on one initial colloidal nanocrystal, by lateral growth of a crystalline semiconductor material represented by the formula MnXy, where M is a transition metal and X a chalcogen, said process comprising the following steps:
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Preparation of a first non or barely coordinating organic solution as a synthesis solvent including one initial nanocrystal, Preparation of a second organic solution including precursors of M and X, and further including an acetate salt, The slow introduction over a predetermined time scale of a predetermined amount of the second solution in a predetermined amount of the first solution, at a predetermined temperature for the growth of nanosheet. - View Dependent Claims (37, 38, 39, 40, 41)
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Specification