▎ 摘　　要

Recent trends of innovation in high-resolution displays have inspired parallel developments of several types of flat panel technologies that can deliver energy-efficient performance. Among these upcoming technologies, field emission displays (FEDs) have carved a niche owing to their high brightness, low power consumption, large color range, wide viewing angle and short response time. However, poor efficiencies of the Alq(3) phosphor create a serious bottleneck in the commercialization of such devices. Herein we have reported an aluminium-quinoline-graphene (Alq(3)-graphene) composite nanophosphor which exhibits visible emission under low-voltage electron beam excitation. The addition of graphene to the Alq(3) matrix facilitates efficient triggering at luminescence centres enabled by local electric field amplification at Alq(3)-graphene contact points. The idea introduced here opens up a route for improving the cathodoluminescence (CL) intensity of the current nanophosphors and also gives an insight to the splendid possibilities of the Alq(3)-graphene composite nanophosphor in this quickly developing field.