Open AccessLuminomagnetic bifunctionality of Mn2+-bonded graphene oxide/reduced graphene oxide two dimensional nanosheets
Author(s) -
Amandeep Amandeep,
Garima Kedawat,
Pawan Kumar,
Avaneesh Anshul,
Abhay D. Deshmukh,
Om Pal Singh,
Ram K. Gupta,
S. S. Amritphale,
Govind Gupta,
Vidya Nand Singh,
Bipin Kumar Gupta
Publication year - 2015
Publication title -
nanoscale
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.038
H-Index - 224
eISSN - 2040-3372
pISSN - 2040-3364
DOI - 10.1039/c5nr01095k
Subject(s) - graphene , oxide , materials science , bifunctional , photoluminescence , excited state , ferromagnetism , ion , nanotechnology , chemical engineering , inorganic chemistry , optoelectronics , chemistry , catalysis , metallurgy , organic chemistry , engineering , physics , quantum mechanics , nuclear physics
Herein, we report the luminomagnetic bifunctional properties of two-dimensional (2D) Mn(2+) bonded graphene oxide (GO)/reduced graphene oxide (RGO) nanosheets synthesized using a facile route of oxidation followed by a solvothermal reduction method. Photoluminescence (PL) studies (excited by different wavelengths) revealed that the resonant energy transfer between Mn(2+) and sp(3)/sp(2) clusters of GO/RGO is responsible for the enhancement of emissions. Moreover, pH-sensitive PL behaviors have also been investigated in detail. The ferromagnetic behavior is believed to arise due to defects in Mn(2+) bonded GO composites. Thus, present reduction method provides a direct route to tune and enhance the optical properties of GO and RGO nanosheets bonded with Mn(2+) ions, which creates an opportunity for various technological applications.
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