Coating of gallium-based liquid metal particles with molybdenum oxide and oxysulfide for electronic band structure modulation,Nanoscale

当前位置： X-MOL 学术 › Nanoscale › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Coating of gallium-based liquid metal particles with molybdenum oxide and oxysulfide for electronic band structure modulation
Nanoscale ( IF 5.8 ) Pub Date : 2023-02-09 , DOI: 10.1039/d2nr06733a
Mohammad B Ghasemian _{1,

2} , Yifang Wang ₂ , Francois-Marie Allioux _{1,

2} , Ali Zavabeti _{3,

4} , Kourosh Kalantar-Zadeh _{1,

2}

Affiliation

Liquid metal (LM) droplets are now used in many applications including catalysis, sensing, and flexible electronics. Consequently, the introduction of methods for on-demand alternating electronic properties of LMs is necessary. The active surface of LMs provides a unique environment for spontaneous chemical reactions that enable the formation of thin layers of functional materials for such modulations. Here, we showed the deposition of n-type MoO_x and MoO_xS_y semiconductors on the surface of EGaIn LM droplets under mechanical agitation to successfully modulate their electronic structures. The “liquid solution”–“liquid metal” interaction resulted in the formation of oxide and oxysulfide layers on the surface of LM droplets. The comprehensive study of electronic and optical properties revealed a decrease in the band gap of the droplets after surface decoration with MoO_x and MoO_xS_y, leading to deeper n-type doping of the materials. This method provides a facile procedure for engineering the electronic band structure of LM-based composites when they are necessary for various applications.

中文翻译：

用氧化钼和硫氧化物涂覆镓基液态金属颗粒用于电子能带结构调制

液态金属 (LM) 液滴现在用于许多应用，包括催化、传感和柔性电子产品。因此，有必要引入按需改变 LM 电子特性的方法。LM 的活性表面为自发化学反应提供了独特的环境，从而能够形成用于此类调制的功能材料薄层。_{在这里，我们展示了 n 型 MoO x}和 MoO _x S _y的沉积在机械搅拌下，EGaIn LM 液滴表面的半导体成功地调制了它们的电子结构。“液态溶液”-“液态金属”相互作用导致 LM 液滴表面形成氧化物和硫氧化物层。_{对电子和光学特性的综合研究表明，在用 MoO x}和 MoO _x S _y进行表面装饰后，液滴的带隙减小，导致材料的 n 型掺杂更深。当各种应用需要时，该方法为设计基于 LM 的复合材料的电子能带结构提供了一个简便的程序。

更新日期：2023-02-09

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南