Abstract
Abstract A spiropyran derivative, which is a well-known photochromic molecule, is attached noncovalently to graphene via a specially designed perylenediimide adsorption anchor group. To explore the feasibility of functionalization, several characterizations were used to prove the π–π interaction between graphene and spiropyran–perylenediimide. This facile and effective noncovalent functionalization strategy provides a new way of introducing various functional molecules to graphene without disturbing its electronic network. The graphene hybrid shows excellent switching ability after modification with spiropyran derivative; furthermore, the switching performance is stable over many cycles. This hybrid has potential application in optical electronic devices and sensors.
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