Room-Temperature Synthesis of Covellite Nanoplatelets with Broadly Tunable Localized Surface Plasmon Resonance
| Autor: | Xin Liu, Yang Liu, Chayanjit Ghosh, Paras N. Prasad, Maixian Liu, Mark T. Swihart, Xiaozheng Xue, Edward P. Furlani |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
business.industry General Chemical Engineering chemistry.chemical_element Nanotechnology General Chemistry Covellite Copper Nanomaterials Copper sulfide chemistry.chemical_compound Semiconductor chemistry Photovoltaics visual_art Phase (matter) Materials Chemistry visual_art.visual_art_medium Surface plasmon resonance business |
| Zdroj: | Chemistry of Materials. 27:2584-2590 |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | Preparation of nanomaterials with controllable sizes and shapes at ambient conditions, without heating or cooling, is extremely attractive from the perspective of cost and energy efficiency. However, highly reactive precursors must be used to obtain NCs at ambient conditions, and this can make the control of particle formation extremely challenging. Degenerately p-doped copper sulfide NCs have attracted much recent interest based on the observation of localized surface plasmon resonance (LSPR) in these materials. These earth-abundant semiconductor NCs have potential applications ranging from photovoltaics to biomedical imaging. Here, we provide the first report of ambient-temperature preparation of covellite nanoplatelets. The lateral dimensions of these are controllable over a wide range while maintaining a constant thickness of 4 nm. The crystalline phase of the NCs is shown here to be controlled by the oxidation state of the copper reagent, with a Cu(II) precursor required to prepare phase-pure covelli... |
| Databáze: | OpenAIRE |
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