▎ 摘　　要

In this work, we have studied the electron localization due to a random distribution of side-attached linear organic molecules on graphene nanoribbons. By using the Green's function formalism within a tight binding Hamiltonian approximation and considering an Anderson-like disorder, we have calculated the conductance of the systems and the corresponding localization lengths. Our results show that the localization length strongly depends on the molecular concentration and on the length of the molecules, effects that are robust for different ribbon widths. These results suggest possible applications in molecular detectors or sensors based on graphene nanoribbons. Published by AIP Publishing.