新規酸化物超薄膜作製法としての二次元ゾル-ゲル法の開発

开发二维溶胶-凝胶法作为制备超薄氧化膜的新方法

• 批准号: 09750910
• 负责人: 森口 勇
• 金额: $ 1.34万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Encouragement of Young Scientists (A)
• 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
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-09750910/
• 关键词: 二次元ゾル-ゲル法; 金属酸化物; 超薄膜; Langmuir-Blodgett; 酸化ニオブ; 二元金属酸化物; ヘテロ積層膜; 光電流; 二次元; ゾル-ゲル法; 酸化チタン; 酸化ジルコニウム

本研究は,金属アルコキシドのゾル-ゲル反応を気水界面で行わせ,得られる浮遊ゲル超薄膜をLangmuir-Blodgett(LB)法により基板上に定量的に累積し,酸化物超薄膜を作製する,という“二次元ゾル-ゲル法"について調べ,その特徴や可能性を明らかにすることを目的とした.昨年度までの研究で,テトラプトキシチタン(TBT)からTiO_2超薄膜が得られること,ゲル薄膜調製時にオクタデシルアセトアセテート(C_<18>AA)を共存させると,安定なゲル薄膜形成,連続かつ定量的なLB累積が可能となり,ZrO_2超薄膜も作製できること,などを明らかにしている.今年度は,二次元ゾル-ゲル法による種々の組成や構造の金属酸化物超薄膜の作製を行い,また,その物性についても調べた.以下に,研究成果の概要を示す.(1) ペンタブトキシニオブ(PBN)とC_<18>AAの混合溶液の水面上への展開,二次元圧縮により,C_<18>AAがNbに配位した安定な浮遊ゲル超薄膜を得た.LB法による基板上への定量的なゲル膜累積後,500℃,0.5hの熱処理により,Nb_2O_5超薄膜を作製した.その膜厚は,ゲル薄膜1層当たり2〜3Åの精度で制御できた.(2) 酢酸鉛とTBTの混合からPb-Tiのダブルアルコキシドを調製し,C_<18>AAとの混合溶液を水面上に展開することにより,二元金属(Pb-Ti-O)系の酸化物超薄膜も作製できることがわかった.(3) TBT-C_<18>AAゲル,TBZ-C_<18>AAゲル超薄膜を交互に累積し,焼成することにより,ナノレベルで積層構造が制御された(TiO_2/ZrO_2)_nヘテロ積層薄膜を作製できることがわかった.(4) 二次元ゾル-ゲル法より得たTiO_2超薄膜について光電流測定を行い,TiO_2超薄膜のUV-Vis吸収と同一形状の光電流作用スペクトルが得られること,膜厚の増加とともに光電流が増加すること,などを確認した.

In this study, the effect of metal on the surface of the water interface has been studied, and the results show that the ultrathin film Langmuir-Blodgett (LB) method has a good effect on the surface of the substrate, the acid compound ultrathin film is used as the substrate, the two-dimensional method is used in this study, and the possibility of the formation of the ultrathin film is studied. In the last year's annual study, the TiO_2 ultrathin film was successfully prepared by TBT, and the temperature of the thin film was 18kg. AA) Co-exist thin film, diazepam thin film is formed, link temperature quantitative LB accumulation may be sensitive, ZrO_2 ultra-thin film is used as a substrate, and the effect is obvious. This year, several kinds of metal acid ultrathin films have been fabricated by two-dimensional chemical method, and the properties of the ultrathin films have been tested. The following is a summary of the research results. (1) A summary of the research results is shown below. (1) the mixed solution of AA (PBN) is spread out on the surface of the water, the two-dimensional solution is spread out, and the mixed solution of AA is expanded. The ultrathin films were obtained by AA Nb coordination, diazepam, floatation and ultrathin films. After the accumulation of the thin films on the substrate by LB method, the ultrathin films were prepared at 500C for 0.5h, and the Nb_2O_5 ultrathin films were prepared. Film thickness, film thickness, film thickness and precision. On the surface of AA, the mixed solution is unfolded, and the binary metal (Pb-Ti-O) is made of acid compound ultrathin film. (3) TBT-C_<18>AA, TBZ-C_<18&gt. The interaction between AA and ultrathin films results in the determination of the photovoltaic flow of TIO _ 2 ultrathin films. (4) the determination of the photovoltaic flow of TIO _ 2 ultrathin films by the two-dimensional method. TiO_2 ultra-thin film UV-Vis absorbs photovoltaic current of the same shape. The thickness of the film increases the temperature of the film.

项目成果

Isamu Moriguchi: "Two-Dimensional Sol-Gel Syntheses of TiO_2,ZrO_2 and Heterolayerd TiO_2/ZrO_2 Ultrathin Films" Abst.of the 72nd ACS Colloids and Surfaces Symposium,. 129 (1998)

Isamu Moriguchi：“TiO_2、ZrO_2 和异质层 TiO_2/ZrO_2 超薄膜的二维溶胶-凝胶合成”第 72 届 ACS 胶体与表面研讨会摘要。

Isamu Moriguchi: "Preparation of TiO_2 Nanoparticulate Film Using a Two-Dimensional Sol-Gel Process" Chemistry of Materials. 9(4). 1050-1057 (1997)

Isamu Moriguchi：“使用二维溶胶-凝胶过程制备 TiO_2 纳米颗粒薄膜”材料化学。