外文题目: Functionalization of reduced graphene oxide with axially-coordinated metal-porphyrins: facile syntheses and temporally-dependent nonlinear optical properties
作者: Wang, Aijian; Song, Jingbao; Jia, Ding; Yu, Wang; Long, Lingliang; Song, Yinglin; Cifuentes, Marie P.; Humphrey, Mark G.; Zhang, Long; Shao, Jianda; Zhang, Chi
刊名: Inorg. Chem. Front.
年: 2016 卷: 3 期: 2 页： 296--305
英文关键词:

NONVOLATILE REWRITABLE MEMORY; CARBON NANOTUBES; THIN-FILMS; NONCOVALENT FUNCTIONALIZATION; FIBER LASER; ABSORPTION; CHEMISTRY; COVALENT; SHEETS; PHTHALOCYANINE
英文摘要:
Reduced graphene oxide-tin porphyrin (RGO-SnTPP) nanohybrids with good dispersibility have been prepared by two covalent functionalization approaches. The microscopic structure and morphology of the RGO-SnTPP nanohybrids were characterized by various spectroscopic techniques including Fourier transform infrared spectroscopy, Raman spectroscopy, transmission electron microscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Ground-state absorption and steady-state fluorescence studies indicate considerable pi-pi interactions and effective photo-induced electron and/or energy transfer from the porphyrin moieties to the RGO. Their nonlinear optical properties were investigated using the Z-scan technique at 532 nm with both picosecond and nanosecond laser pulses. The RGO-SnTPP hybrids were found to exhibit large nonlinear optical responses due to a combination of mechanisms, while significant differences in their nonlinear optical responses were observed, highlighting the influence on photophysical properties of the degree of functionalization and the synthetic approach employed.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1039/c5qi00209e


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