Disclosed herein is a method for preparing large soluble graphenes. The method comprises attaching one or more hindering groups to the graphene, which can prevent face-to-face graphene stacking by reducing the effects of inter-graphene attraction. The large graphenes can absorb a wide spectrum of light from UV to near infrared, and are useful in photovoltaic devices and sensitizers in nanocrystalline solar cells.
本文公开了一种制备大型可溶性
石墨烯的方法。该方法包括在
石墨烯上附着一个或多个阻碍基团,通过降低
石墨烯间吸引力的影响来阻止面对面的
石墨烯堆叠。大型
石墨烯可吸收从紫外线到近红外线的宽光谱,可用于光伏设备和纳米晶太阳能电池中的敏化剂。