Abstract Graphite is a promising source for graphene and its derivatives (GO and RGO) but several lengthy processess are involved in the production and tuning of its properties. In this work, graphene oxide nanosheets (GNSs) were synthesized by a one step, environment friendly and cost effective electrolysis technique. The GNSs were characterized by XRD, AFM, UV-vis-NIR, Raman, FTIR, photoluminescencespectroscopies and thermogravimetric analysis (TGA). The XRD pattern confirmed the formation of GNSs. The UV-Vis analysis confirmed quantum confirnment effect in GNSs with increased band gap of 5.4 eV. PL spectrum showed emission peaks in visible to Infrared region. The sheets possessed excellent thermal stability confirmed from TGA analysis. The FTIR results verified the existence of oxygen-containing functional groups (OFGs) in the GNSs. The I D / I G ≈ 0.85 obtained from Raman Spectra showed high quality GNSs with less defects. The AFM and SEM results showed wrinkles with high grain surface area and roughness.The obtained results showed significantly enhanced properties and indicated that synthesized GNSs are cerdible potential candidates for optoelectronic devices including solar cells, supercapacitors, electrochemical and bio sensors, biomarkers and also suitable for low temperature fuel cells.

中文翻译：

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用于光电和能源设备的具有显着增强性能的氧化石墨烯的简便合成

摘要 石墨是石墨烯及其衍生物（GO 和 RGO）的一种很有前途的来源，但其性能的生产和调整涉及几个漫长的过程。在这项工作中，氧化石墨烯纳米片（GNSs）是通过一步、环境友好且具有成本效益的电解技术合成的。通过 XRD、AFM、UV-vis-NIR、拉曼、FTIR、光致发光光谱和热重分析 (TGA) 对 GNS 进行表征。XRD 图证实了 GNS 的形成。UV-Vis 分析证实了 GNS 中的量子确认效应，带隙增加了 5.4 eV。PL 光谱在可见光至红外区显示发射峰。TGA 分析证实了这些片材具有优异的热稳定性。FTIR 结果验证了 GNS 中含氧官能团 (OFG) 的存在。从拉曼光谱获得的 ID / IG ≈ 0.85 显示出高质量的 GNS，缺陷较少。AFM 和 SEM 结果显示皱纹具有高晶粒表面积和粗糙度。所得结果显示出显着增强的性能，表明合成的 GNS 是光电器件的可靠候选者，包括太阳能电池、超级电容器、电化学和生物传感器、生物标志物，也适用于低温燃料电池。