CAJ | 학술논문

采用射频磁控溅射在玻璃衬底上制备了不同掺杂量的Fe-ZnO薄膜,分析不同掺杂量对薄膜光学性能的影响.利用X射线衍射仪(XRD)和原子力显微镜(AFM)研究Fe-ZnO薄膜的微观结构和形貌结构.Fe-ZnO薄膜光致发光(PL)性质的研究发现,发光峰主要有蓝光发射和绿光发射,蓝光发射主要是由于电子从导带向锌空位形成的浅受主能级上的跃迁;绿光发射是由于电子从氧空位到锌空位的能级跃迁及导带底到氧错位缺陷能级的跃迁.由透射谱和吸收谱分析,Fe-ZnO薄膜在可见光区的平均透过率为66%,掺杂量为2%Fe的薄膜的禁带宽度最接近于ZnO的禁带宽度.
채용사빈자공천사재파리츤저상제비료불동참잡량적Fe-ZnO박막,분석불동참잡량대박막광학성능적영향.이용X사선연사의(XRD)화원자력현미경(AFM)연구Fe-ZnO박막적미관결구화형모결구.Fe-ZnO박막광치발광(PL)성질적연구발현,발광봉주요유람광발사화록광발사,람광발사주요시유우전자종도대향자공위형성적천수주능급상적약천;록광발사시유우전자종양공위도자공위적능급약천급도대저도양착위결함능급적약천.유투사보화흡수보분석,Fe-ZnO박막재가견광구적평균투과솔위66%,참잡량위2%Fe적박막적금대관도최접근우ZnO적금대관도.
Fe-ZnO films doped with different Fe doping are prepared on glass substrate by r.f.magnetron sputtering system.It is analyzed that the influence of different doping on its luminescence performance.The microstrucure and morphology of Fe-ZnO thin films are studied by X-ray diffraction(XRD) and atomic force microscope(AFM).The photoluminescence characteristics of Fe-ZnO show the blue luminescence peak and green luminescence peak.The blue emission corresponds to the electron transition from the bottom of the conduction band to the acceptor level of zinc vacancy; The green emission corresponds to the electron transition from the oxygen vacancy to zinc vacancy and from the bottom of the conduction band to the local level composed of oxide misplaced defects.The transmission spectrum and absorption spectrum of Fe-ZnO show that Fe-ZnO films possess a average transmittance of about 66% in the visible region; the band gap of Fe-ZnO with 2% doping is close to the band gap of ZnO.