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Grapheneoxid , a key derivative of graphene based materials, is . Although graphene’s highly conjugated structure is destroyed, the oxidation process preserves its unique surface properties and layered structures. The introduction of oxygen-containing groups not only makes the graphene oxide chemically stable, but also provides surface modification active sites and a larger specific surface area for the synthesis of graphene-based/graphene oxide-based materials. Graphene dioxide is an excellent precursor and support carrier in the synthesis and control of graphene-based materials. When compounding with metals and metal oxides, high-molecular polymers and other materials it can provide a large area for dispersing the attached materials and preventing agglomeration.
Grapheneoxid also exhibits excellent physical, chemical, and electrical properties. The graphene oxide can also be controlled due to the coexistence with various oxygen-containing groups on the base, edges, and graphene sheet frame. This allows for the control of its conductivity, band gap, and type. There are many uses for this material. Grapheneoxid is a new carbon material. It exhibits excellent properties with high specific surface areas and numerous functional groups. The wide variety of graphene-oxide composite materials, which include polymer composites and inorganic compounds materials, has led to the development of a new research area: surface modification.

1 Optoelectronics
In 2016, Karteri et al. In 2016, Karteri and colleagues studied organic thin-film transistors with SiO2/GO insulating layers, as well as their photoresponse characteristics devices. The characteristics of the transistor were also improved by adding GO to the insulating layers.
2 solar cells
You will get the same photoelectric conversion efficiency as PEDOT:PSS if you use GO instead. Study of the effect of different thicknesses GO layers on polymer-solar cells has been done. It was found that devices with a thickness of 2 nm or less have the highest photoelectric conversion rates.
3 Flexible Sensor
Because GO has many hydrophilic functional classes, it can be easily modified. Its high specific surface, high dispersion, and high humidity sensitivity make GO an excellent sensor material, especially for flexible sensors.
4 Biological considerations
GO is a unique combination of electronic, optical, and mechanical properties that has been used in many areas, including biotechnology, biomedical and nanomedicine, cancer therapy, tissue engineering and drug release. GO’s specific surface area is larger than other planar or spherical nanomaterials. It can also be easily modified and has a high biocompatibility. GO and alkene derivatives will have corresponding biological effects due to their surface charges, sizes, lateral dimensions, and surface chemistry. Further research is needed to determine GO’s biosafety. Material science will enable us to use low toxicity materials and better biocompatibility to modify GO. We can prepare GO with stable and clear properties, non-toxic, and safe structure so that it can serve as a safe, effective, and reliable medical material.

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