scholarly journals A Facile Method to Synthesize CdSe-Reduced Graphene Oxide Composite with Good Dispersion and High Nonlinear Optical Properties

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 957 ◽  
Author(s):  
Pengchao Li ◽  
Baohua Zhu ◽  
Peng Li ◽  
Zhihao Zhang ◽  
Luyao Li ◽  
...  

CdSe-reduced graphene oxide (CdSe/RGO) composites were synthesized by a hydrothermal method. CdSe/RGO composites with different mass ratios were prepared. The structure and morphology of CdSe/RGO composites were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The synthesis of CdSe/RGO complexes was successfully demonstrated by Fourier infrared (FT-IR) and Raman spectra. CdSe nanoparticles in the CdSe/RGO composite were uniformly dispersed on the graphene surface. The study found that oxygen-containing functional groups such as hydroxyl (-OH) and carboxyl (-COOH) groups in graphene played a decisive role in the dispersion of CdSe. The third-order nonlinear optical properties of CdSe/RGO composites were measured by a single beam Z-scan technique. The experimental results showed that composites exhibited two-photon absorption and self-focusing nonlinear refraction properties. Additionally, the third-order nonlinear susceptibility of the composite material was obviously enhanced, which was mainly due to the good dispersion of CdSe nanoparticles on graphene.

2016 ◽  
Vol 852 ◽  
pp. 754-759
Author(s):  
Guang Ai Zhu ◽  
Yan Mao Dong ◽  
Jia Xuan Li

Poly (2,3-dimethylaniline) synthesized by a novel polymerization technique, is covalently grafted to reduced graphene oxide layers. Amide linkages formed between Poly (2,3-dimethylaniline) and reduced graphene oxide is confirmed with FTIR and Raman spectroscopy. Morphology was studied by scaning electron microscopy. The hybrid showed improved nonlinear optical properties compared to the graphene oxide precursor and the pristine poly (2, 3-dimethylaniline).


2015 ◽  
Vol 17 (11) ◽  
pp. 7149-7157 ◽  
Author(s):  
Weina Song ◽  
Chunying He ◽  
Yongli Dong ◽  
Wang Zhang ◽  
Yachen Gao ◽  
...  

An investigation of the effects of central metals on the photophysical and nonlinear optical performance of RGO–MPc hybrids.


2016 ◽  
Vol 3 (2) ◽  
pp. 296-305 ◽  
Author(s):  
Aijian Wang ◽  
Jingbao Song ◽  
Ding Jia ◽  
Wang Yu ◽  
Lingliang Long ◽  
...  

Reduced graphene oxide-tin porphyrin nanohybrids with good dispersibility have been prepared, which exhibited large optical nonlinearity due to a combination of mechanisms.


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