Startseite Fabrication of Ag2S/CdS Heterostructured Nanosheets via Self-Limited Cation Exchange
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Fabrication of Ag2S/CdS Heterostructured Nanosheets via Self-Limited Cation Exchange

  • Charlotte Ruhmlieb EMAIL logo , Angelique Rieckmann , Christian Strelow , Tobias Kipp und Alf Mews
Veröffentlicht/Copyright: 3. Mai 2018

Abstract

Highly crystalline vertically aligned Ag2S/CdS heterostructured nanosheets with lateral sizes of several micrometers and thicknesses of a few nanometers are prepared directly on silver surfaces by a two-step process. Firstly, Ag2S sheets were prepared by direct reaction of partially dissolved elementary sulfur in methanol with a solid silver surface in methanol at room temperature. The second step involves a self-limited cation exchange of Ag+ vs. Cd2+ to achieve the formation of large-area Ag2S/CdS heteronanosheets on the solid substrate. The cation exchange was proven and investigated over time via several analytical methods, e.g. X-ray diffraction, Raman spectroscopy and three-dimensional photoluminescence mapping.

Acknowledgement

The authors would like to acknowledge Almut Barck for XRD measurements and Philip Harder and Marina Mutas for technical support.

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Received: 2018-03-23
Accepted: 2018-04-05
Published Online: 2018-05-03
Published in Print: 2018-08-28

©2018 Walter de Gruyter GmbH, Berlin/Boston

Artikel in diesem Heft

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  2. Preface
  3. Congratulations to Alexander Eychmüller
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  5. Controlled Aqueous Synthesis of CdSe Quantum Dots using Double-Hydrophilic Block Copolymers as Stabilizers
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