光子带隙调制下发光体间的能量传递过程  

Photonic band gap effects upon energy transfer in luminophors

作　　者：刘震东[1] 杨正文[2] 李勃[3] 周济[1] 

机构地区：[1]清华大学材料科学与工程系,新型陶瓷与精细工艺国家重点实验室,北京100084 [2]昆明理工大学材料科学与工程学院,云南昆明650093 [3]清华大学深圳研究生院,新材料研究所,广东深圳518055

出　　处：《功能材料》2013年第20期2931-2935,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51032003,11274198);国家高技术研究发展计划(863计划)资助项目(2012AA 030403);深圳市科技计划资助项目(JSE201007200050A)

摘　　要：光子晶体具有光子带隙和光子局域等特有性质,光物理过程在光子带隙调制下产生新的现象特点为制备新型光电材料提供了可能。通过对光子带隙调制作用的机理探讨,设计制备蛋白石及反蛋白石结构光子晶体。对其中发光体的荧光光谱和给体荧光寿命的实验研究表明,当光子带隙频段与能量传递过程中给体的发射光谱相重叠,能量传递过程将得到增强。The photonic crystals provide unique properties of photonic band gap, photonic localization and so on. The photonic bad gap creates possibilities to produce new photoelectric materials with the modulation of the photophysical process. In this work, the modulation effects on energy transfer were studied both in theory and experiment. The opal and inverse opal photonic crystals with luminophors were fabricated. The energy transfer was investigated by photoluminescence and fluorescence lifetime. The results showed the enhancement of ener- gy transfer when the photonic band gap overlapped the emission wavelength of donor.

关 键 词：光子晶体 光子带隙 能量传递 调制作用 

分 类 号：O734[理学—晶体学]