Zhang Jiapei, Thomas Shibin, Muhammad Mustafa Ahmad Nizamuddin, Greenacre Victoria, Zhelev Nikolay, Ali Syeda Ramsha, Han Yisong, Song Shaokai, Zhang Hongwei, Graham Aiden, Abdelazim Nema M, Ramadan Sami, Beanland Richard, Reid Gillian, Bartlett Philip N, de Groot Kees, Noori Yasir J
School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, United Kingdom.
School of Chemistry and Chemical Engineering, University of Southampton, Southampton SO17 1BJ, United Kingdom.
ACS Appl Nano Mater. 2025 May 16;8(21):10842-10850. doi: 10.1021/acsanm.4c07346. eCollection 2025 May 30.
Integrating graphene and transition metal dichalcogenides (TMDs) into layered material heterostructures brings together the exciting properties that each constituent 2D material offers. However, scaling the growth of graphene-TMD and related heterostructures remains a major challenge. In this work, we demonstrate the use of electrodeposition with a single source precursor (SSP), WSeCl, to grow few-layer WSe using graphene as an electrode. Through characterization via photoluminescence, X-ray photoelectron, and Raman spectroscopy, we show that the electrodeposited WSe is stoichiometric and exhibits semiconducting and light-emitting properties. TEM imaging was also performed to show the ordering of the stacked layers of WSe over graphene, demonstrating the polycrystalline structure of WSe. This work paves the way toward utilizing electrodeposition to stack multiple TMDs, including MoS, WS, and WSe over graphene for electronic and optoelectronic applications.
将石墨烯和过渡金属二卤化物（TMDs）整合到层状材料异质结构中，汇集了每种二维组成材料所具有的令人兴奋的特性。然而，扩大石墨烯-TMD及相关异质结构的生长规模仍然是一项重大挑战。在这项工作中，我们展示了使用单源前驱体（SSP）WSeCl进行电沉积，以石墨烯作为电极来生长少层WSe。通过光致发光、X射线光电子能谱和拉曼光谱进行表征，我们表明电沉积的WSe是化学计量的，并表现出半导体和发光特性。还进行了透射电子显微镜成像，以显示WSe在石墨烯上堆叠层的有序性，证明了WSe的多晶结构。这项工作为利用电沉积在石墨烯上堆叠包括MoS、WS和WSe在内的多种TMD用于电子和光电子应用铺平了道路。
