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首页> 外文期刊>Journal of Materials Research >In situ functionalization of gallium nitride powder with a porphyrin dye
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In situ functionalization of gallium nitride powder with a porphyrin dye

机译：卟啉染料原位官能化氮化镓粉末

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摘要

This work focused on the modification of milled GaN powder. Successful attachment of a porphyrin derivative to a GaN powder was performed via in situ functionalization in the presence of phosphoric acid. The GaN powder was imaged using scanning electron microscopy and was found to be heterogeneous in nature, adopting no consistent geometry in the aggregates. The aqueous stability of the porphyrin used was observed in deionized water and a solution of phosphoric acid using ultraviolet-visible spectroscopy. Surface chemistry was characterized with x-ray photoelectron spectroscopy and infrared spectroscopy, which identified evidence of successful functionalization through the presence of characteristic peaks. The interface stability of the covalent bond between GaN and porphyrin was evaluated using fluorescence spectroscopy and demonstrated no leaching of dye in water solutions for 20 days.
机译：这项工作的重点是研磨的GaN粉末的改性。在磷酸存在下，通过原位官能化将卟啉衍生物成功连接到GaN粉末上。使用扫描电子显微镜对GaN粉进行成像，发现其本质上是异质的，聚集体中没有一致的几何形状。使用紫外-可见光谱法在去离子水和磷酸溶液中观察到所用卟啉的水稳定性。用X射线光电子能谱和红外光谱对表面化学进行了表征，它们通过存在特征峰而鉴定出成功进行功能化的证据。使用荧光光谱法评估了GaN和卟啉之间共价键的界面稳定性，并证明染料在水溶液中20天没有浸出。

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  • 来源
    《Journal of Materials Research》 |2015年第19期|2910-2918|共9页
  • 作者

    Brady L. Pearce; Stewart J. Wilkins; Matthew S. Rahn; Albena Ivanisevic;

  • 作者单位

    Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA;

    Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA;

    Department of Materials Science and Engineering, Pennsylvania State University, State College, Pennsylvania 16801, USA;

    Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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