Mn2+-mediated energy transfer process as a versatile origin of photoluminescence in graphene oxide
Abstract
Many factors affect the photoluminescence (PL) of graphene oxide (GO). The influence of Mn2+ on the PL in GO was systematically investigated when the universal heteroion was introduced in the common preparation based on the Hummers method, and for the first time we propose that a Mn2+ mediated energy transfer process may be a versatile origin in GO.