Electrical conduction in fluoride glasses and mixed halide glasses.

氟化物玻璃和混合卤化物玻璃中的导电。

• 批准号: 60550548
• 负责人: MATUSITA Kazumasa
• 金额: $ 1.22万
• 依托单位: Technological University of Nagaoka,
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550548/
• 关键词: fluoride glass; halide glass; electrical conduction; activation energy for conduction; bridging fluorine; non-bridging fluorine

Fluoride glasses and other halide glasses have attracted much attention because of infrared optical materials. In the present study, the electrical conductivities of some fluoride glasses based on <ZrF_4> - <BaF_2> and <AlF_3> - <BaF_2> systems were measured and conduction mechanisms were discussed. The conductivities were measured using the micro picoammeter and LCR meter. The electrical carriers in halide glasses are halogen anions, being contrast to oxide glasses in which electrical carriers are monovalent cations. The electrical conductivitiy of each fluoride glass was found to increase with temperature, obeying the Arrhenius equation with constant activation energies for conduction. It was found that the electrical conductivity hardly changes with composition so far as the network forming componenets are same, but changes extraordinarily with network forming components. The electrical conductivities of <BeF_2> -CsF glasses reported by Baldwin et al are much lower than those of the present glasses. The concentration of <F^-> ions is almost same for all these glasses. It was concluded that only non-bridging fluorine anion can move under electrical field and act as electrical carrier, but bridging fluorine anion can not be electrical carrier.

氟化物玻璃和其它卤化物玻璃由于具有红外光学性能而受到广泛关注。本研究测量了几种基于-和-系统的氟化物玻璃的电导率<ZrF_4><BaF_2><AlF_3><BaF_2>，并讨论了其导电机理。使用微皮安计和LCR计测量电导率。卤化物玻璃中的电载体是卤素阴离子，这与电载体是一价阳离子的氧化物玻璃相反。发现每种氟化物玻璃的电导率随温度的升高而增加，服从具有恒定导电活化能的Arcidius方程。结果表明，在网络形成组分相同的情况下，电导率几乎不随组成变化，而随网络形成组分的变化而变化。Baldwin<BeF_2>等人报道的-CsF玻璃的电导率比现有玻璃的电导率低得多。所有这些玻璃的&lt;F^-&gt;离子浓度几乎相同。结果表明，只有非桥连氟阴离子才能在电场作用下运动并作为电载流子，而桥连氟阴离子不能作为电载流子。

项目成果

Kazumasa Matusita, Takayuki Komatsu and Kazuhiro Aizawa.: "Anion conduction in various fluoride glasses." The 5th International Conference on Physics of Non-Crystalline Solids.(1987)

Kazumasa Matusita、Takayuki Komatsu 和 Kazuhiro Aizawa：“各种氟化物玻璃中的阴离子传导。”

Kazumasa Matusita;Takayuki Komatsu;Kazuhiro Aizawa.: The 5th International Confernce on Physics of Non-Crystalline Solids.(1987)

Kazumasa Matusita;Takayuki Komatsu;Kazuhiro Aizawa.：第五届国际非晶固体物理学会议。(1987)