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Superlattices of Semiconductor Quantum Size Particles in Layered Organic Acids

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Abstract

The preparation of lead sulfide and cadmium sulfide quantum size particles arranged in periodic layers within organic matrices is described. Superlattices of the particles have been generated in crystals or thin films of long chain amphiphilic acids by topotactic gas-solid reactions of the lead or cadmium salts, that pack in layer structures, with H2S gas. X-ray powder diffraction and transmission electron microscopy reveal that the crystalline order of the reactant has been partially retained in the organic-inorganic composite. This approach is demonstrated by examples of organic acids bearing an aromatic ring along the hydrocarbon chain, such as derivatives of phenyl propionic and benzoic acids.

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Authors and Affiliations

  1. Department of Materials and Interfaces, The Weizmann Institute of Science, 76100, Rehovot, Israel

    Ronit Popovitz-Biro, Shouwu Guo, Volker Hensel, Edna Shavit & Meir Lahav

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  1. Ronit Popovitz-Biro
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  2. Shouwu Guo
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  3. Volker Hensel
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  4. Edna Shavit
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  5. Meir Lahav
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Popovitz-Biro, R., Guo, S., Hensel, V. et al. Superlattices of Semiconductor Quantum Size Particles in Layered Organic Acids. MRS Online Proceedings Library 576, 159–164 (1999). https://doi.org/10.1557/PROC-576-159

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  • DOI: https://doi.org/10.1557/PROC-576-159

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