物理学报
物理學報
물이학보
2001年
5期
977-980
,共4页
许北雪%吴锦雷%刘惟敏%杨海%邵庆益%刘盛%薛增泉%吴全德
許北雪%吳錦雷%劉惟敏%楊海%邵慶益%劉盛%薛增泉%吳全德
허북설%오금뢰%류유민%양해%소경익%류성%설증천%오전덕
光电发射%稀土%薄膜%纳米粒子
光電髮射%稀土%薄膜%納米粒子
광전발사%희토%박막%납미입자
用真空蒸发沉积的方法制备了掺杂稀土的金属纳米粒子-介质复 合薄膜(Ag-BaO薄膜). 与不掺杂稀土的Ag-BaO薄膜相比，其光电发射能力提高了近40%. 透射电镜分析表明，掺杂稀土后，Ag-BaO薄膜中的Ag纳米粒子明显细化、球化、密度增大 . 这表明Ag纳米粒子的细化，使得其在光作用下，光电子更容易通过隧道效应穿过界面位垒 逸出，导致光电发射能力增强.
用真空蒸髮沉積的方法製備瞭摻雜稀土的金屬納米粒子-介質複 閤薄膜(Ag-BaO薄膜). 與不摻雜稀土的Ag-BaO薄膜相比，其光電髮射能力提高瞭近40%. 透射電鏡分析錶明，摻雜稀土後，Ag-BaO薄膜中的Ag納米粒子明顯細化、毬化、密度增大 . 這錶明Ag納米粒子的細化，使得其在光作用下，光電子更容易通過隧道效應穿過界麵位壘 逸齣，導緻光電髮射能力增彊.
용진공증발침적적방법제비료참잡희토적금속납미입자-개질복 합박막(Ag-BaO박막). 여불참잡희토적Ag-BaO박막상비，기광전발사능력제고료근40%. 투사전경분석표명，참잡희토후，Ag-BaO박막중적Ag납미입자명현세화、구화、밀도증대 . 저표명Ag납미입자적세화，사득기재광작용하，광전자경용역통과수도효응천과계면위루 일출，도치광전발사능력증강.
A metal nanoparticles-composite thin film (Ag-BaO), doped by rare-earth eleme nts, was g rown by vacuum deposition. Compared with the normal Ag-BaO thin film, the photo emission current of the doped Ag-BaO thin film increases by about 40%. The tran smi ssion electron micrograph indicated that Ag nanoparticles become smaller when do ped with rare-earth. With the smaller size of Ag nanoparticles, photoelect rons are eas ier to transgress from Ag nanoparticles via tunnel effect. Thus the photomission current increases.
