Fundamental Research on Nitride Metalirgy-New Rovte for GaN Synthesis-

氮化物金属学基础研究-用于GaN合成的New Rovte-

基本信息

  • 批准号:
    09450275
  • 负责人:
  • 金额:
    $ 5.76万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1998
  • 项目状态:
    已结题

项目摘要

GaN is an important functional material because of its ability to emit short wave length light. Although nitriding of gallium metal by nitrogen gas is thermodynamically feasible at moderate temperatures, it is practically difficult under a normal pressure because incipient reaction leads to a layer of GaN which forms an effective barrier to further reaction. In this communication, we show that a complex nitride such as Li_3GaN_2 can act as a reaction mediator during nitriding of gallium alloys with nitrogen gas. GaN is synthesized without direct physical contact between gallium and nitrogen gas. Feasibility of this reaction is confirmed by measuring thermodynamic properties of Li_3GaN_2, and mechanism of this reaction is discussed using an isothermal chemical potential diagram constructed from the results of the present study. For example, the Gibbs energy of formation of Li_3GaN_2 is determined by measuring electromive force measurement using galvanic cell, and potential range of nitrogen chemical potential under GaN I Li_3GaN_2 two phase equilibrium is discussed. New approach for analyzing the feasibility of GaN synthesis through a mediator is demonstrated.
GaN因其发射短波长光的能力而成为一种重要的功能材料。虽然在中等温度下通过氮气氮化镓金属在化学上是可行的,但在常压下实际上是困难的,因为初始反应导致GaN层,其形成对进一步反应的有效屏障。在这篇文章中,我们证明了一种复合氮化物,如Li_3GaN_2,可以在镓合金的氮气氮化过程中作为反应介质。GaN的合成没有镓和氮气之间的直接物理接触。通过测量Li_3GaN_2的热力学性质证实了该反应的可行性,并利用由本研究结果建立的等温化学势图讨论了该反应的机理。以Li_3GaN_2为例,用原电池法测定了Li_3GaN_2的生成吉布斯自由能,讨论了GaN/Li_3GaN_2两相平衡时氮的化学势范围。证明了通过介体分析GaN合成的可行性的新方法。

项目成果

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WASEDA Yoshio其他文献

WASEDA Yoshio的其他文献

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{{ truncateString('WASEDA Yoshio', 18)}}的其他基金

Middle-range order structure of multi-component Li ion conducting oxides
多元锂离子导电氧化物的中序结构
  • 批准号:
    24656364
  • 财政年份:
    2012
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Control of cation distribution in spinel type iron oxide particles
尖晶石型氧化铁颗粒中阳离子分布的控制
  • 批准号:
    23360276
  • 财政年份:
    2011
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Structural Characterization of LiFePO_4 based Ionic Conductivity Synthesized at Low temperatures
低温合成LiFePO_4基离子电导率的结构表征
  • 批准号:
    20360288
  • 财政年份:
    2008
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Short-range and Middle-range Ordering
短程和中程订购
  • 批准号:
    17206075
  • 财政年份:
    2005
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Thermal properties and glass-forming ability of bulk glassy alloys
大块非晶合金的热性能和玻璃形成能力
  • 批准号:
    15360397
  • 财政年份:
    2003
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Nitride Metallurgy: Thermodynamics of Nitrides and Development of New Synthesis Methods
氮化物冶金:氮化物的热力学和新合成方法的开发
  • 批准号:
    12450302
  • 财政年份:
    2000
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of method for measuring three dimensional thermal properties of Si/NiFe/AIN thin film using a angle femtosecond thermoreflectance technique
采用角飞秒热反射技术测量 Si/NiFe/AlN 薄膜三维热性能的方法的开发
  • 批准号:
    12555171
  • 财政年份:
    2000
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Structural Analysis of Al_2O_3 Based High Temperature Melts
Al_2O_3基高温熔体的结构分析
  • 批准号:
    06452308
  • 财政年份:
    1994
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
Structural study for hydrolytic condensed amorphous(Y,Zr)O_x.
水解缩合非晶态(Y,Zr)O_x的结构研究。
  • 批准号:
    03805058
  • 财政年份:
    1991
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Development of a System for Measuring Thermal Diffusivity of Thin Films by Laser Flash Method Based on a New Principle.
基于新原理的激光闪光法测量薄膜热扩散率系统的开发。
  • 批准号:
    01850145
  • 财政年份:
    1989
  • 资助金额:
    $ 5.76万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B).

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Development of novel acyclic chelators for gallium-68 and scandium-44 radiometals used in PET
开发用于 PET 的镓 68 和钪 44 放射性金属的新型无环螯合剂
  • 批准号:
    EP/V028073/2
  • 财政年份:
    2024
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  • 项目类别:
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RII Track-4: NSF: Advancing High Density and High Operation Temperature Traction Inverter by Gallium Oxide Packaged Power Module
RII Track-4:NSF:通过氧化镓封装功率模块推进高密度和高工作温度牵引逆变器
  • 批准号:
    2327474
  • 财政年份:
    2024
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Enhancement of interfacial thermal transport through evanescent electric field mediated acoustic phonon transmission for efficient cooling of high power Gallium Nitride devices
通过瞬逝电场介导的声声子传输增强界面热传输,以实现高功率氮化镓器件的高效冷却
  • 批准号:
    2336038
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US GEOTRACES GP17-ANT: Dissolved Gallium, Barium, and Vanadium as interface, process, and circulation tracers in the Amundsen Sea
US GEOTRACES GP17-ANT:溶解的镓、钡和钒作为阿蒙森海中的界面、过程和循环示踪剂
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会议:第六届美国氧化镓研讨会
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使用新型混合型高速气相外延制造超低缺陷氮化镓晶体
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    23K17743
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探索阿尔法氧化镓的缺陷、电性能和生长机制的科学
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用铋、镓和铟对抗抗菌素耐药性
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