Low temperature synthesis of plasmonic molybdenum nitride nanosheets for surface enhanced Raman scattering.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32753657.
- Also identified by DOI 10.1038/s41467-020-17628-0 and PMC identifier 7403429.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Molybdenum nitride (δ-MoN) is an important functional material due to its impressive catalytic, energy storage, and superconducting properties. However, the synthesis of δ-MoN usually requires extremely harsh conditions; thus, the insight into δ-MoN is far behind that of oxides and sulfides of molybdenum. Herein, we report that ultrathin δ-MoN nanosheets are prepared at 270 °C and 12 atm. WN, VN, and TiN nanosheets are also synthesized by this method. The δ-MoN nanosheets show strong surface plasmon resonance, high conductivity, excellent thermal and chemical stability as well as a high photothermal conversion efficiency of 61.1%. As a promising surface enhanced Raman scattering substrate, the δ-MoN nanosheets exhibit a 8.16 × 10<sup>6</sup> enhanced factor and a 10<sup>-10</sup> level detection limit for polychlorophenol.