垂直直立石墨烯纳米墙的制备及光热感应

基于等离子体增强化学气相沉积(PECVD)技术,通过调节实验参数,在绝缘衬底玻璃上成功制备出了三维垂直直立的石墨烯纳米墙(GNWs)材料.生长过程中发现石墨烯的质量和尺寸大小与相应的生长时间有关,利用拉曼(Raman)光谱、扫描电子显微镜(SEM)、原子力显微镜(AFM)等仪器对石墨烯纳米墙作了表征.并且,利用石墨烯纳米墙超高的比表面积和优异的散热特性,发现垂直直立的石墨烯纳米片-玻璃杂化混合材料在光热感应上有着良好的响应,将有望促进垂直直立石墨烯纳米片-玻璃杂化的混合材料在透明的太阳热装置和绿色保暖建筑材料上的应用.

Synthesis of vertical graphene nanowall and its photothermal study

Based on plasma enhanced chemical vapor deposition (PECVD) technology, three-dimensional (3D) vertically-oriented graphene nanowalls are successfully synthesized on insulating substrate glass by adjusting experimental parameters. During the growth process, the mass and size of graphene are related to the corresponding growth time. Using Raman spectroscopy (Raman), scanning electron microscopy (SEM), and atomic force microscopy (AFM), etc., the graphene nanowalls are characterized. Moreover, using the ultra-high specific surface area and the excellent heat dissipation characteristics of graphene nanowalls, it is found of good photothermal response feature of vertically-oriented graphene nanosheets-glass hybrid materials, which is expected to promote the use of vertically-oriented graphene nanosheet-glass hybrid materials in transparent solar thermal installations and green warm building materials