Multi Graphene Growth on Lead Pencil Drawn Sliver-Halide Print Paper Irradiated by Scanning Femtosecond Laser

TL;DR

This study investigates the growth of multi-layer graphene on various paper types drawn with lead pencils and irradiated by scanning femtosecond laser, revealing conditions that promote graphene formation.

Contribution

It demonstrates the formation of multi-graphene on lead pencil drawn paper after femtosecond laser irradiation, highlighting the effects of paper type and pencil grade.

Findings

Silver halide paper drawn with 10B pencil remains flat after laser irradiation.

Raman spectra show large G peaks and reduced D peaks indicating graphene presence.

Multi graphene formation is confirmed by the 2D peak around 2700 /cm.

Abstract

A variety of paper were drawn by lead pencil with the grade between 4H through 10B. Raman spectroscopy verified both G and D peaks on all the drawing on PC print paper, PC photo paper, kent paper and paper for silver halide print. After irradiation of scanning femtosecond laser, silver halide paper drawn with 10B lead pencil remained surface flatness compared to the other papers. Raman spectroscopy on silver print paper showed a large G peak with less intensity of D peak. After irradiation of scanning femtosecond laser on silver halide paper drawn by 10B lead pencil, Raman spectroscopy showed large G peak and less intensity of D peak together with 2D peak around 2,700 /cm corresponding to the existence of multi graphene.