The precise control in size/thickness, composition, crystal phases, doping, defects, and surface properties of two-dimensional (2D) layered transition metal chalcogenide (TMC) is important for the investigation of interwoven relationship between structures, functions, and practical applications. Of the multiple synthetic routes, solution-based top-down and bottom-up chemical methods have been uniquely important for their potential to control the size and composition at the molecular level in addition to their scalability, competitive production cost, and solution processability. Here, we introduce an overview of the recent advances in the solution-based preparation routes of 2D layered TMC nanostructures along with important scientific developments.

中文翻译：

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二维层状过渡金属硫族化物纳米结构的溶液制备新进展

二维（2D）层状过渡金属硫属元素化物（TMC）的尺寸/厚度，组成，晶相，掺杂，缺陷和表面特性的精确控制对于研究结构，功能和实际应用之间的相互关系非常重要。在多种合成路线中，基于溶液的自上而下和自下而上的化学方法除了具有可扩展性，具有竞争力的生产成本和溶液可加工性之外，还因为其在分子水平上控制分子大小和组成的潜力而特别重要。在这里，我们介绍了二维分层TMC纳米结构的基于溶液的制备路线的最新进展以及重要的科学进展。