污水处理设备 污泥处理设备 水处理过滤器 软化水设备/除盐设备 纯净水设备 消毒设备|加药设备 供水/储水/集水/排水/辅助 水处理膜 过滤器滤芯 水处理滤料 水处理剂 水处理填料
上海巨纳科技有限公司
简要描述:Semiconductor analog of graphene: Graphene oxide has been synthesized at our RD facilities using modified reaction Hummer technique. Growth technique emphasizes on minimizing the defect densi......
Semiconductor analog of graphene: Graphene oxide has been synthesized at our R&D facilities using modified reaction Hummer technique. Growth technique emphasizes on minimizing the defect density to yield optically active material and increasing the average grain size (flake size). Unlike many other graphene oxides, this product is optically active and is ready for 2D semiconductor research. Each growth batch has been characterized by Auger electron and x-ray photoelectron spectroscopy to determine the stoichometry; Raman, PL spectroscopy, and optical absorption for optical properties tests; AFM measurements for the atomic flatness. Product displays PL at ~2.5 eV, sub-bands at 2.2 and 2.0 eV, and broad defect lines at 1.7 eV. Raman spectroscopy measurements yield D, G, 2D, and G+D peaks. Samples come fully saturated with oxygen and the optical properties of the material can be tuned by simple heat treatment. The product is ideal for yielding monolayer onto various substrates within 2-10 minutes. Please contact us for more information.
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