2023年10月10日 · In this study, the team utilized single atom Au clusters to intercalate 2H-TaS 2, achieving a SERS enhancement effect of two orders of magnitude relative to the parent 2H-TaS 2.

First-principles calculations suggest strong electronic coupling between Au and 2H-TaS 2. This study offers insights into SERS enhancement in nonprecious metal compounds and guides the development of new SERS substrates.

In this study, the team utilized single atom Au clusters to intercalate 2H-TaS2, achieving a SERS enhancement effect of two orders of magnitude relative to the parent 2H-TaS2.

TaS2 (2H Tantalum Disulfide) 2H-TaS2 is a metal and an incommensurate Charge density waves (CDW) system below ~75-80K and a superconductor with Tc ~1K. Note that TaS2 also exist in the 1T phase TaS2 which is a semiconductor and a Charge density waves (CDW) system below ~180K (for more information on 1T-TaS2 click here ).

2022年7月7日 · This study shows how metallic TMDs, especially 2H tantalum disulfide (2H-TaS2) nanosheets, can be used as SERS-based sensor substrates to detect the extremely low concentration of rhodamine 6G...

SERS measurement and the Raman bulk measurement are respectively 161.49, 166.94, and 102.62 and 166.94, 220.24, and 207.79. Based on (5) and (6) the Raman intensities ratio of R6G/ TaS. 2 (3.01×10 –18. M) were calculated: I. SERS(611cm/-1) /I. bulk =(161.49/30)/(166.94/0.5)=1.61x10-2; I. SERS(1359cm/-1) /I. bulk = (102.62/30)/(220.24/0.5 ...

2023年9月26日 · 为了准确地阐明Au-2H-T aS 2 的S ERS 增强机理，建立了单原子层 A u簇插层双层2 H-TaS 2 的模型（如图上），并创新地提出了 基于近邻电子轨道耦合效应的电磁场增强机制。

为了准确阐明Au-2H-TaS 2的SERS增强机制， 建立了单原子层Au团簇插层双层2H-TaS 2模型，并提出了一种基于相邻电子轨道耦合效应的创新电磁场增强机制。 建议的。

该研究为金属性硫属化合物(特别是TaS 2)的电催化析氢应用提供了重要的实验依据，开拓了该类材料作为新型催化剂的应用方向。 总之，纳米尺度的2H-TaS 2 具有高的比表面积、丰富的边缘活性位点、优异的导电特性、层间相对弱的范德华相互作用等优异的特性 ...

2023年10月10日 · This study provides important insights into the enhancement mechanisms of SERS using nonprecious metal compounds and can guide the development of new SERS substrates, according to the team. This Figure Revealing the SERS Enhancement Principle of Au-2H-TaS 2 Based on the Coupling Effect of Nearest …