化工新型材料
化工新型材料
화공신형재료
NEW CHEMICAL MATERIALS
2010年
2期
82-84
,共3页
叶旭%杨定明%吕亚宁%李娴%胡文远%魏贤华
葉旭%楊定明%呂亞寧%李嫻%鬍文遠%魏賢華
협욱%양정명%려아저%리한%호문원%위현화
SrZnO_2:Eu~(3+)%Li~+%燃烧法%荧光
SrZnO_2:Eu~(3+)%Li~+%燃燒法%熒光
SrZnO_2:Eu~(3+)%Li~+%연소법%형광
SrZnO_2:Eu~(3+)%Li~+%combustion synthesis%fluorescence
采用燃烧法合成了SrZnO_2:Eu~(3+),Li~+发光材料,用X射线衍射谱、荧光光谱对样品进行了表征.结果表明,Eu~(3+)和Li~+成功掺入SrZnO_2基质中,Eu~(3+)离子在基质中主要占据Sr~(2+)离子不对称性格位,发射来源于~5D_0→~7F_2615nm为主的红光.加入电荷补偿荆Li~+离子的掺入能显著提高发光强度,其影响程度与Eu~(3+)、离子和Li~+离子的掺杂比例密切相关.
採用燃燒法閤成瞭SrZnO_2:Eu~(3+),Li~+髮光材料,用X射線衍射譜、熒光光譜對樣品進行瞭錶徵.結果錶明,Eu~(3+)和Li~+成功摻入SrZnO_2基質中,Eu~(3+)離子在基質中主要佔據Sr~(2+)離子不對稱性格位,髮射來源于~5D_0→~7F_2615nm為主的紅光.加入電荷補償荊Li~+離子的摻入能顯著提高髮光彊度,其影響程度與Eu~(3+)、離子和Li~+離子的摻雜比例密切相關.
채용연소법합성료SrZnO_2:Eu~(3+),Li~+발광재료,용X사선연사보、형광광보대양품진행료표정.결과표명,Eu~(3+)화Li~+성공참입SrZnO_2기질중,Eu~(3+)리자재기질중주요점거Sr~(2+)리자불대칭성격위,발사래원우~5D_0→~7F_2615nm위주적홍광.가입전하보상형Li~+리자적참입능현저제고발광강도,기영향정도여Eu~(3+)、리자화Li~+리자적참잡비례밀절상관.
SrZnO_2:Eu~(3+),Li~+ phosphor was synthesized by combustion method and its luminescent characteristics were investigated by XRD and FL.The results showed that Eu~(3+) and Li~+ were successfully doped into the crystal lattice of SrZnO_2 matrix and Eu~(3+) preferentially occupied Sr~(2+) asymmetry cationic sites,thus emitting 615 nrn red light originated form ~5D_0→~7F_2 transition.The emission spectrum intensity of SrZnO_2:Eu~(3+)phosphor was greatly increased by Li~+ as charge compensator.and the evolvement trend related with differem doping ratio of Eu~(3+) and Li~+.
