Fig. 2From: Liquid Type Nontoxic Photoluminescent Nanomaterials for High Color Quality White-Light-Emitting DiodeTransmission electron microscopy and scanning electron microscopy images of NPs. a Morphology of the graphene QD mixture with a particle size of approximately 5 nm as characterized through a TEM and b high-resolution TEM. c SEM image (top view) of the 40 nm–500 nm silicon particlesBack to article page