Gamma ray assisted fabrication of fluorescent oligographene nanoribbons

Graphical abstract: Facile low cost method for production of oligographene nanoribbons is presented. Highlights: ► Gamma ray assisted fabrication of oligographene nanoribbons. ► Facile, large scale and low cost method of graphene nanoribbon fabrication. ► Produced nanoribbons are fluorescent in the blue region of visible spectrum. -- Abstract: In this paper, facile low cost method for production of oligographene nanoribbons is presented. Nanoribbons are produced by gamma ray assisted cutting of oligographene dispersed in cyclopentanone. Width and height of the smallest nanoribbons are 30 and 1 nm, respectively. Due to the presence of a small number of defects introduced by gamma irradiation, nanoribbons are photoluminescent in the UV and blue region of the visible spectrum.