CAJ | 학술논문

以介孔二氧化硅MCM-41为硅源,采用低温水热反应与后续煅烧相结合的方法合成Sr2-x ZnSi2 O7∶xEu3+红色荧光粉。实验结果表明,150益水热处理16 h后的反应产物含Sr2 ZnSi2 O7相,经后续950益煅烧3 h得到Sr2 ZnSi2 O7纯相。在392 nm近紫外光的有效激发下,Sr2-x ZnSi2 O7∶xEu3+荧光粉显示Eu3+离子的特征跃迁发射,以615 nm的5 D0→7 F2跃迁发射峰为最强。适量Eu3+的掺杂对Sr2 ZnSi2 O7相结构几乎没有影响,当Eu3+离子的掺杂量x=0.10时,荧光粉发光强度最大。
이개공이양화규MCM-41위규원,채용저온수열반응여후속단소상결합적방법합성Sr2-x ZnSi2 O7∶xEu3+홍색형광분。실험결과표명,150익수열처리16 h후적반응산물함Sr2 ZnSi2 O7상,경후속950익단소3 h득도Sr2 ZnSi2 O7순상。재392 nm근자외광적유효격발하,Sr2-x ZnSi2 O7∶xEu3+형광분현시Eu3+리자적특정약천발사,이615 nm적5 D0→7 F2약천발사봉위최강。괄량Eu3+적참잡대Sr2 ZnSi2 O7상결구궤호몰유영향,당Eu3+리자적참잡량x=0.10시,형광분발광강도최대。
Sr2-x ZnSi2 O7∶xEu3+ red phosphors were synthesized with mesoporous MCM-41 as silica source via a low-temperature hydrothermal route with further calcining. The results indicate that Sr2 ZnSi2 O7 phase appears in the hydrothermal reaction product synthesized at 150 ℃ for 16 h, and pure phase Sr2 ZnSi2 O7 is obtained by further calcining at 950℃ for 3 h. Sr2-x ZnSi2 O7∶xEu3+ phos-phors can be effectively excited by 392 nm near-ultraviolet radiation and show the typical emission spectra of Eu3+. The prominent emission transition is at 615 nm assigned to 5 D0→7 F2 . The struc-ture of Sr2 ZnSi2 O7 is not affected by doping appropriate amounts of Eu3+. Sr2-x ZnSi2 O7∶ xEu3+phosphor with x=0. 10 has the highest Eu3+ emission intensity.