Solvent Exfoliation of Transition Metal Dichalcogenides: Dispersibility of Exfoliated Nanosheets Varies Only Weakly between Compounds - Cunningham,G; Lotya,M; Cucinotta,CS; Sanvito,S; Bergin,SD; Menzel,R; Shaffer,MSP; Coleman,JN (ACS NANO, 2012)