水杨醛缩苯胺锌及其薄膜的谱学性能  

Spectroscopic Properties of Salicylaldehyde Anil Zinc and Its Thin Film

作　　者：郝玉英[1] 高志翔[1] 王华[2] 周禾丰[2] 马国章 刘旭光[2] 许并社[2] 

机构地区：[1]太原理工大学理学院应用物理系,山西太原030024 [2]太原理工大学材料学院,山西太原030024 [3]山西省应用化学研究所,山西太原030024

出　　处：《光谱学与光谱分析》2006年第3期491-495,共5页Spectroscopy and Spectral Analysis

基　　金：国家杰出青年基金(50025103);国家自然科学基金(20271037;90306014);山西省自然科学基金(20041066);山西省回国留学人员基金(200122)资助

摘　　要：合成了一种新型的发光材料水杨醛缩苯胺锌(SAZ),利用真空热蒸镀制备了高质量、纳米级薄膜,利用红外光谱、差热-热重谱、X射线衍射谱、UV-Vis吸收谱、荧光光谱研究了水杨醛缩苯胺锌及其薄膜的结构、晶态、热稳定性以及光学特性,并利用循环伏安法、UV-Vis吸收谱确定了该材料的能级结构。结果表明,水杨醛缩苯胺锌无定性薄膜具有较高的热稳定性,在紫外光激发下产生绿色荧光,色纯度高,亮度高。水杨醛缩苯胺锌薄膜在大气环境下存放,荧光衰减比8-羟基喹啉铝快,但受紫外光照射时,荧光衰减比8-羟基喹啉铝慢。水杨醛缩苯胺锌的HOMO能级为-5.659eV,LUMO能级为-3.054eV,禁带宽度为2.604eV。A new light emitting material, salicylaldehyde anil zinc （SAZ）, was synthesized. It can form high quality nano-scale amorphous thin films on clean glass substrates by vacuum evaporation. Its structure, crystallization, thermal stability, and optical property were investigated by IR spectra, DTA-TG analysis, XRD spectra, UV-Vis spectra, and fluorescence spectra. Its energy band structure was confirmed by cyclic voltammogram and optical absorption band edge. Results show that the SAZ film is a thermally stable material, and can emit intense green fluorescence with a peak wavelength at 508 nm and a full width at halfmaximum of 90. 2 um under UV irradiation. Its HOMO energy level is about -5. 659 eV, LUMO energy level is about -3. 054 eV, optical gap band is about 2. 604 eV. The fluorescence decay of stored films under ambient atmosphere is more rapid than that of 8-hydroxyquinoline aluminum films. However, the fluorescence decay of the films under UV irradiation is slower than that of 8-hydroxyquinoline aluminum films.

关 键 词：水杨醛缩苯胺锌 薄膜 光学性能 能级结构 热稳定性 

分 类 号：O428.3[理学—声学]