摘要
合成了一种大π共轭高分子———聚3 辛酰基吡咯(POPY)。利用1H NMR、FT IR和UV Vis对反应中间产物及目标产物POPY进行了结构表征。热重分析(TGA)表明,POPY可耐285℃的高温。通过真空I2掺杂处理,POPY的电导率提高了3个数量级,为0.023S/cm。采用标准后向简并四波混频(DFWM)系统对POPY的三阶非线性光学效应进行了研究。结果表明,在532nm处,POPY的三阶非线性极化率为9.2×10-10esu。光致发光(PL)研究表明,在360nm的紫外光的激发下,POPY能够发出很强的波长为414nm和437nm的蓝色荧光。
A novel π-conjugated polymer, poly(3-octanoylpyrrole) (POPY) was synthesized firstly. The chemical structures of the intermediate and the POPY were characterized by 1H-NMR, FT-IR and UV-Vis spectroscopy. The thermal stability by thermogravimetric analysis (TGA) indicates that POPY decomposes at temperature of 285°C. The conductivity of POPY doped with iodine is 0.023 S/cm which is 3 order of magnitude higher than that of the intrinsic sample. The third-order nonlinear optical property of POPY was studied by the backward degenerate four wave mixing (DFWM) at 532 nm. The third-order nonlinear optical susceptibility of POPY is about 9.2×10-10 esu. The photoluminescence (PL) of POPY is also investigated. The result shows that POPY is a good photoluminescence material and strong blue fluorescence can be observed when the excitation wavelength is 360 nm.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2004年第10期1214-1217,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60277002)
关键词
吡咯
酰基
三阶非线性光学
DFWM
极化率
光学特性
结构表征
可耐
PL
TGA
Four wave mixing
Fourier transform infrared spectroscopy
Iodine
Magnetic susceptibility
Nonlinear optics
Nuclear magnetic resonance spectroscopy
Photoluminescence
Thermogravimetric analysis
Ultraviolet spectroscopy
