Effect of hydrogen adsorption on the quasiparticle spectra of graphene
  We use the non-interacting tight-binding model to study the effect of isolated hydrogen adsorbates on the quasiparticle spectra of single-layer graphene. Using the Green's function approach, we obtain analytic expressions for the local density of states and the spectral function of hydrogen-doped graphene, which are also numerically evaluated and plotted. Our results are relevant for the interpretation of scanning tunneling microscopy and angle-resolved photoemission spectroscopy data of functionalized graphene. 
M. Farjam, D. Haberer, A. Gr\"uneis
cond-mat.mes-hall cond-mat.mtrl-sci