半导体肖特基势垒二极管用氧化石墨烯，MoS 2，MoSe 2和WS 2的Cd基金属水凝胶复合材料,ACS Applied Nano Materials

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半导体肖特基势垒二极管用氧化石墨烯，MoS ₂，MoSe ₂和WS _2的Cd基金属水凝胶复合材料
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-10-16 , DOI: 10.1021/acsanm.0c02215
Santanu Majumdar ₁ , Arka Dey _{2,

3} , Rajib Sahu ₄ , Subhendu Dhibar ₁ , Partha Pratim Ray ₃ , Biswajit Dey ₁

Affiliation

我们引入了一种具有Cd（II）来源的极低分子量有机胶凝剂，以获得超分子Cd（II）金属水凝胶。进行了凝胶的微结构分析。凝胶材料的机械性能已通过流变学研究进行了仔细检查。不同的2D纳米结构，包括氧化石墨烯（GO）和各种过渡金属_二卤化金属（TMD），例如MoS ₂，MoSe ₂和WS ₂已被利用以获得Cd（II）的2D纳米片分散的金属水凝胶。已通过高分辨率透射电子显微镜研究对具有不同二维纳米结构的Cd（II）金属水凝胶的形貌变化进行了成像。还研究了金属水凝胶材料的光电性能。Cd（II）金属水凝胶的导电特性建立了肖特基势垒二极管类型的性质。这表明在环境条件下2D纳米片的超分子方法对基于2D纳米结构的超分子金属水凝胶体系形成的适用性。GO和TMDs剥落的2D纳米片向超分子金属水凝胶的分散已被认为是一种调节超分子金属水凝胶系统的电子性质和形态的技术。

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Cd-Based Metallohydrogel Composites with Graphene Oxide, MoS2, MoSe2, and WS2 for Semiconducting Schottky Barrier Diodes

We have introduced an extremely low-molecular-weight organic gelator with a Cd(II) source to obtain a supramolecular Cd(II) metallohydrogel. Microstructural analysis of the gel has been performed. The mechanical property of the gel material has been scrutinized through rheological investigations. Different 2D nanostructures including graphene oxide (GO) and diverse transition-metal dichalcogenides (TMDs) like MoS₂, MoSe₂, and WS₂ have been exploited to get 2D nanosheet-dispersed metallohydrogels of Cd(II). Morphological variation of the Cd(II) metalloghydrogel with different 2D nanostructures has been imaged through high-resolution transmission electron microscopy studies. The optoelectronic properties of the metallohydrogel materials have also been explored. The conducting property of Cd(II) metallohydrogel establishes the Schottky barrier diode-type nature. This shows the applicability of a supramolecular approach of 2D nanosheets toward the formation of 2D nanostructure-based supramolecular metallohydrogel systems under ambient conditions. The dispersion of exfoliated 2D nanosheets of GO and TMDs to the supramolecular metallohydrogel has been considered as a technique to tune the electronic property and morphology of the supramolecular metallohydrogel system.

更新日期：2020-11-25

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