Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 7, Pages 2247-2252Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201504692
Keywords
covalent modification; in situ polymerization; poly(aryleneethynylene); reduced graphene oxide; structural characterization
Categories
Funding
- National Natural Science Foundation of China [51333002, 21404037, 61378072]
- Research Fund for the Doctoral Program of Higher Education of China [20120074110004]
- State Key Laboratory of ASIC & System of Fudan University [11KF007]
- Fundamental Research Funds for the Central Universities [WJ1514311]
Ask authors/readers for more resources
Using highly soluble bromo-functionalized reduced graphene oxide (RGBr) as a key graphene template for surface-directing Sonogashira-Hagihara polymerization, a novel soluble poly(arylene-ethynylene)-grafted reduced graphene oxide, hereafter abbreviated as PAE-g-RGO, was prepared in situ. The entirely different electron distribution of LUMO and HOMO of PAE-g-RGO suggested the existence of a charge-transfer (CT) state (PAE(.-)-RGO(.+)). The negative G(CS) value (-2.57eV) indicates that the occurrence of the charge separation via (1)RGO* in o-DCB is exothermic and favorable. Upon irradiation with 365nm light, the light-induced electron paramagnetic resonance (LEPR) spectrum of PAE-g-RGO showed a decrease in the spin-state density owing to photoinduced intramolecular electron transfer events in this system. A sandwich-type Al/PAE-g-RGO/ITO device showed representative bistable electrical switching behavior. The nonvolatile memory performance was attributed to the CT-induced conductance changes, which was supported by molecular computation results and conductive atomic force microscopy (C-AFM) images.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available