发光二硫化钼量子点的电化学合成
Electrochemical synthesis of luminescent MoS2 quantum dots.
作者信息
Gopalakrishnan Deepesh, Damien Dijo, Li Bo, Gullappalli Hemtej, Pillai Vijayamohanan K, Ajayan Pulickel M, Shaijumon Manikoth M
机构信息
Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Sreekaryam, Thiruvananthapuram, Kerala 695 016, India.
出版信息
Chem Commun (Camb). 2015 Apr 14;51(29):6293-6. doi: 10.1039/c4cc09826a.
Size-controlled synthesis of luminescent quantum dots of MoS2 (≤2 layers) with narrow size distribution, ranging from 2.5 to 6 nm, from their bulk material using a unique electrochemical etching of bulk MoS2 is demonstrated. Excitation-dependent photoluminescence emission is observed in the MoS2 QDs. "As-synthesized" MoS2 QDs also exhibit excellent electrocatalytic activity towards hydrogen evolution reactions.
通过对块状二硫化钼（MoS₂）进行独特的电化学蚀刻，展示了从其块状材料合成尺寸可控（≤2层）、尺寸分布窄（范围为2.5至6纳米）的发光量子点二硫化钼。在二硫化钼量子点中观察到了依赖于激发的光致发光发射。“合成态”的二硫化钼量子点对析氢反应也表现出优异的电催化活性。
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