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在MOCVD系统中用预淀积In纳米点低温下合成生长InN 被引量:1
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作者 谢自力 张荣 +11 位作者 修向前 毕朝霞 刘斌 濮林 陈敦军 韩平 顾书林 江若琏 朱顺明 赵红 施毅 郑有炓 《人工晶体学报》 EI CAS CSCD 北大核心 2005年第6期1050-1055,共6页
利用低压金属有机化学气相淀积(LP-MOCVD)系统,在(0001)蓝宝石衬底上采用预淀积In纳米点技术低温合成制备了立方相的InN薄膜。首先以TM In作源在蓝宝石衬底表面预淀积了一层金属In纳米点,然后在一定条件下合成生长InN薄膜。X射线衍射谱(... 利用低压金属有机化学气相淀积(LP-MOCVD)系统,在(0001)蓝宝石衬底上采用预淀积In纳米点技术低温合成制备了立方相的InN薄膜。首先以TM In作源在蓝宝石衬底表面预淀积了一层金属In纳米点,然后在一定条件下合成生长InN薄膜。X射线衍射谱(XRD)和X射线光电子发射谱(XPS)显示适当的预淀积In不仅能够促进InN的生长,同时还能够抑制金属In在InN薄膜中的聚集。原子力显微镜(AFM)观察表明,金属In纳米点不仅增强了成核密度,而且促进了InN岛的兼并。自由能计算表明预淀积的In优先和NH3分解得到的NH与N基反应生成InN。我们认为这种优先生成的InN为接下来InN的生长提供了成核位,从而促进了InN的生长。 展开更多
关键词 INN 预淀积In纳米点 MOCVD
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Galvanic replacement reaction for in situ fabrication of litchi-shaped heterogeneous liquid metal-Au nano-composite for radio-photothermal cancer therapy
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作者 Zhenhu Guo Jingsong Lu +9 位作者 Dan Wang Wensheng Xie Yongjie Chi Jianzhong Xu Nonaka Takuya Junxin Zhang Wanling Xu Fei Gao Hong Wu Lingyun Zhao 《Bioactive Materials》 SCIE 2021年第3期602-612,共11页
With tremendous research advances in biomedical application,liquid metals(LM)also offer fantastic chemistry for synthesis of novel nano-composites.Herein,as a pioneering trial,litchi-shaped heterogeneous eutectic gall... With tremendous research advances in biomedical application,liquid metals(LM)also offer fantastic chemistry for synthesis of novel nano-composites.Herein,as a pioneering trial,litchi-shaped heterogeneous eutectic gallium indium-Au nanoparticles(EGaIn-Au NPs),served as effective radiosensitizer and photothermal agent for radio-photothermal cancer therapy,have been successfully prepared using in situ interfacial galvanic replacement reaction.The enhanced photothermal conversion efficiency and boosted radio-sensitization effect could be achieved with the reduction of Au nanodots onto the eutectic gallium indium(EGaIn)NPs surface.Most importantly,the growth of tumor could be effectively inhibited under the combined radio-photothermal therapy mediated by EGaIn-Au NPs.Inspired by this approach,in situ interfacial galvanic replacement reaction may open a novel strategy to fabricate LM-based nano-composite with advanced multi-functionalities. 展开更多
关键词 Au nanodots Gallium Galvanic replacement reaction indium Radio-photothermal therapy
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