• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >In Situ Synthesis and Characterization of Poly(aryleneethynylene)-Grafted Reduced Graphene Oxide
【24h】

In Situ Synthesis and Characterization of Poly(aryleneethynylene)-Grafted Reduced Graphene Oxide

机译：聚（亚芳基乙炔）接枝的还原氧化石墨烯的原位合成与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Using highly soluble bromo-functionalized reduced graphene oxide (RGBr) as a key graphene template for surface-directing Sonogashira-Hagihara polymerization, a novel soluble poly(arylene-ethynylene)-grafted reduced graphene oxide, hereafter abbreviated as PAE-g-RGO, was prepared in situ. The entirely different electron distribution of LUMO and HOMO of PAE-g-RGO suggested the existence of a charge-transfer (CT) state (PAE(.-)-RGO(.+)). The negative G(CS) value (-2.57eV) indicates that the occurrence of the charge separation via (1)RGO* in o-DCB is exothermic and favorable. Upon irradiation with 365nm light, the light-induced electron paramagnetic resonance (LEPR) spectrum of PAE-g-RGO showed a decrease in the spin-state density owing to photoinduced intramolecular electron transfer events in this system. A sandwich-type Al/PAE-g-RGO/ITO device showed representative bistable electrical switching behavior. The nonvolatile memory performance was attributed to the CT-induced conductance changes, which was supported by molecular computation results and conductive atomic force microscopy (C-AFM) images.
机译：使用高溶解度的溴官能化还原氧化石墨烯（RGBr）作为表面导向Sonogashira-Hagihara聚合反应的关键石墨烯模板，一种新型的可溶性聚（亚芳基-乙炔基）接枝的还原氧化石墨烯，以下简称为PAE-g-RGO，是原地准备的。 PAE-g-RGO的LUMO和HOMO的完全不同的电子分布表明存在电荷转移（CT）状态（PAE（.-）-RGO（。+））。负G（CS）值（-2.57eV）表示o-DCB中通过（1）RGO *进行电荷分离是放热的并且有利的。在365nm的光照射下，由于该系统中的光诱导分子内电子转移事件，PAE-g-RGO的光诱导电子顺磁共振（LEPR）光谱显示自旋态密度降低。三明治型Al / PAE-g-RGO / ITO器件显示出典型的双稳态电开关性能。非易失性存储性能归因于CT诱导的电导率变化，这受到分子计算结果和导电原子力显微镜（C-AFM）图像的支持。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号