Controlling the morphology and optoelectronic properties of graphene hybrid materials by porphyrin interactions

Abstract

An approach to reversibly control the curling and unfolding of graphene hybrid materials by porphyrin interactions on the basal planes of graphene has been developed, and the curled graphene hybrid materials have enhanced photoelectrochemical and optical limiting performance.

Graphene and Carbon‐Nanotube Nanohybrids Covalently Functionalized by Porphyrins and Phthalocyanines for Optoelectronic Properties

“…Graphene oxide (GO) has often been employed as the starting material for the preparation of graphene derivatives through acylation reactions, due to the hydroxyl, carboxyl, and epoxy groups providing remarkable hydrophilic character and chemical reactivity . The covalent linking of Pors/Pcs to graphene has been achieved by esterification/amidation of hydroxyl/amino‐appended Pors/Pcs with GO.…”

“…The covalently linked RGO–Por nanohybrids were found to show enhanced NLO performance because of a combination of mechanisms, while significant differences were observed, highlighting the influence on photophysical properties of the degree of functionalization and the synthetic approach employed . The effect of morphology on the optoelectronic properties of covalently linked GO–dihydroxotin(IV) TPP nanohybrids have also been explored . Structurally similar and biologically important Pcs are also effective optical limiters.…”

One-Pot Exfoliation of Graphite and Synthesis of Nanographene/Dimesitylporphyrin Hybrids

“…Porphyrins have been widely used to decorate carbon materials such as fullerenes and carbon nanotubes in a supramolecular fashion, because of their strong π–π stacking interactions with them. Moreover, the electron-donor character of porphyrins can promote photoinduced electron transfer processes with carbon-based materials for the development of optoelectronic devices [ 29 , 30 , 31 , 32 , 33 ]. To enhance π–π interactions between graphene and the porphyrin core, porphyrins bearing either simple alkyl or benzyl substituents in the meso positions have been employed [ 33 , 34 ].…”

Auto-controlled fabrication of a metal-porphyrin framework thin film with tunable optical limiting effects

“…An efficient ET/PET process in several porphyrin-carbon structure systems has been reported. [50][51][52][53] The photoinduced electron transfer can be evidenced by the photocurrent responses and the electrochemical impedance spectroscopy (EIS) measurements ( Fig. S13 and S23 †).…”