CAJ | 학술논문

以钛酸正丁酯、异丙醇、硝酸镱和硝酸铒为起始原料,乙酰丙酮为络合剂,硝酸为催化剂,采用溶胶-凝胶法和旋转镀膜工艺制备出无掺杂和镱、铒共掺杂二氧化钛光致发光薄膜.利用接触角测定仪测定玻璃基底和溶剂之间的接触角,通过TG、XRD和FESEM分别对溶胶溶液或薄膜样品进行热分析、物相分析和特征形貌表征,研究了掺杂元素、不同煅烧温度对薄膜物相组成的影响.结果表明:异丙醇与玻璃基底的接触角最小,被选为最佳溶剂.当煅烧温度达到700℃且保温2h时,可得到晶型较好的无掺杂和镱、铒共掺杂薄膜,其颗粒形貌为球形结构,平均尺寸不大于50 nm,薄膜表面均匀致密且较光滑.荧光分光光度计的测试结果表明,镱、铒共掺杂薄膜具有较强的光致发光性能.
이태산정정지、이병순、초산의화초산이위기시원료,을선병동위락합제,초산위최화제,채용용효-응효법화선전도막공예제비출무참잡화의、이공참잡이양화태광치발광박막.이용접촉각측정의측정파리기저화용제지간적접촉각,통과TG、XRD화FESEM분별대용효용액혹박막양품진행열분석、물상분석화특정형모표정,연구료참잡원소、불동단소온도대박막물상조성적영향.결과표명:이병순여파리기저적접촉각최소,피선위최가용제.당단소온도체도700℃차보온2h시,가득도정형교호적무참잡화의、이공참잡박막,기과립형모위구형결구,평균척촌불대우50 nm,박막표면균균치밀차교광활.형광분광광도계적측시결과표명,의、이공참잡박막구유교강적광치발광성능.
Er3 +,Yb3 + co-doped TiO2 films were successfully deposited on glass substrates by sol-gel method and spin-coating technique.Ti(OBu) 4 and lanthanide nitrates were used as the starting materials,AcAc as the chelator and nitric as the catalyzer.The contact angle between the solvent and the glasse was measured by contact angle goniometer.The thermal decomposition,the crystal structure,and the morphology of the films were investigated by thermal analysis (TG),X-ray diffraction (XRD),and field emission scanning electron microscopy (FE-SEM),respectively.The results indicate that IPA is the suitable solvent to improve the surface wetting property.Mter annealed at 700 ℃ for 2 h,both of the undoped and the co-doped films get good crystallinity,and the average grain size is not more than 50 nm.The film on the glass substrate was highly compact.The strong photoluminescence phenomenon was also observed.