Preparation and Application of New Amorphous Materials in Non-chalcogenide System

非硫系新型非晶材料的制备及应用

• 批准号: 62470062
• 负责人: ABE Yoshihiro
• 金额: $ 4.67万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62470062/
• 关键词: amorphous; glass; photosensitivity; phosphorus; calcium aluminate; photochromism; photodarkening; photodoping; リン; アモルファス赤リン; 光暗化; 光退色; ブリーチング; CaOーAl_2O_3ガラス; PーSガラス; Fーセンター; アモルファス材料; 感光材料; アモルフェスリン; カルシウムアルミネート; フォトダークニング; 光メモリー

Two new photosensitive amorphous materials were found in non- chalcogenide systems; dopant-free calcium aluminate glasses and amorphous red phosphorus.Binary calcium aluminate glasses show two types of photosensitivities with different nature to ultravioletradiation, stable coloring( bleachable by heating tip to 200ﾟC) and photochromism. No doping of optically active components such as Au, Ag or halogens is required for the appearance, which is totally differs from photosensitive glasses so far. These insensitivities can be imparted to calcium aluminate glasses with the same chemical compositions by only changing the melting atmosphere such as oxidizing or reducing. These sensitivities were attributed to the presence of oxygen-related point defects (oxygen-excess type or oxygen vacancy) in the glasses.Amorphous red phosphorus films were successfully prepared by rf sputtering method. These films were found to show three photoinduced phenomena, photodarkening, and photodoping of silver.These observation is the fist report in non-chacogenide systems.Further, photobleaching was found, which has been not observed in chacogenide systems so far. The results were explained by that the top of the valence band is composed of p sigina orbital,i.e.band gap illumination dissociates P-P bonds. The resulting P_2 molecule or P radicals rearrange or react with oxygen molecule, depending on the atmosphere. No such a photo-induced bond dissociation is observed because the lone pair orbitals occupy the top of the valence band in chacogenides.

在非chalcogenide系统中发现了两种新的光敏无定形材料。无掺杂钙铝玻璃和无定形红磷。双钙铝玻璃显示出两种类型的光敏组织，具有不同性质与超级直辐，稳定的着色（可通过将尖端升至200 ﾟC）和摄影作用。对于外观，不需要光学活跃的组件（例如AU，Ag或卤素）的掺杂，这与到目前为止的光敏眼镜完全不同。这些不敏感性只能通过改变氧化或还原等熔融大气来赋予具有相同化学成分的钙铝制玻璃。这些灵敏度归因于玻璃中与氧相关点缺陷（氧气型或氧空位）的存在。通过RF溅射方法成功制备了无态红色磷膜。发现这些薄膜显示了三种光诱导的现象，光标记和银的光解码。这些观察结果是在非氯化物化合物系统中的拳头报告。发现了光漂白，到目前为止尚未在chacogogogogoinide Systems中观察到。结果解释说，价带的顶部由p sigina轨道组成，即带间隙间隙照明解离P-P键。所得的P_2分子或P自由基重新排列或与氧分子反应，具体取决于大气。没有观察到这样的光诱导的键离解离，因为休息室轨道占据了chacogogogogoinides中的价带的顶部。

项目成果

H.Hosono: "Properties and Mechanism of Photochromism in Reduced Calcium Aluminate Glasses" Journal of Applied Physics. (1990)

H.Hosono：“还原铝酸钙玻璃中光致变色的特性和机制”应用物理学杂志。

川島孝一,細野秀雄,阿部良弘: 日本セラミックス協会学術論文誌. 97. 351-354 (1989)

Koichi Kawashima、Hideo Hosono、Yoshihiro Abe：日本陶瓷学会杂志 97. 351-354 (1989)。

K.KAWASHIMA et al.: Journal of Non-Crystalline Solids. 95 & 6. 741-748 (1987)

K.KAWASHIMA 等人：《非晶固体杂志》。

川島孝一,細野秀雄,阿部良弘: 日本セラミックス協会学術論文誌. 97. 346-350 (1989)

Koichi Kawashima、Hideo Hosono、Yoshihiro Abe：日本陶瓷学会杂志 97. 346-350 (1989)。

H.Hosono: "Photosensitive Characteristics of Dopant-Free,UV-Sensitive Calcium Aluminate Glasses" Journal of American Ceramic Society. 70. 867-70 (1987)

H.Hosono：“无掺杂剂、紫外线敏感的铝酸钙玻璃的光敏特性”美国陶瓷学会杂志。