Photo-Induced Electron Transfer Effects of Poly(2-Methoxy-5-Octyloxy)-p-Phenylene Vinylene/Y2O3∶Eu3+ Nano-Composites
SUN Jian-ping1,2, MA Lin-pu1, LIN Ting1
1.College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China 2.Key Laboratory of Polymer Materials of Fujian Province, Fuzhou 350007, China
Abstract：The photoelectric nano-composites of poly(2-methoxy-5-octyloxy)-p-phenylene vinylene/Y2O3∶Eu3+ (PMOCOPV/Y2O3∶Eu3+) were prepared by dehydrochlorination in-situ polymerization.The result of Fourier transform infrared spectroscopy indicates that PMOCOPV is coated on the surface of Y2O3∶Eu3+.Compared with PMOCOPV, the absorption of PMOCOPV/Y2O3∶Eu3+ is strengthened, and a red shift of the absorption peak can be clearly observed in the UV-Vis spectrum.Photoluminescence spectroscopy indicates that the maximum emission wavelength of the PMOCOPV/Y2O3∶Eu3+ is red-shifted and the intensity of photoluminescence increases in comparison with PMOCOPV.PMOCOPV/Y2O3∶Eu3+ shows fluorescence increasing, which involved the inter-molecular photo-induced charge transfer process.The optical band gap of PMOCOPV/Y2O3∶Eu3+ decreases.The third-order optical nonlinear susceptibility of PMOCOPV/Y2O3∶Eu3+ nano-composites was measured by degenerate four wave mixing.The results show that the third-order nonlinear optical responses of PMOCOPV/Y2O3∶Eu3+ nano-composites are enhanced in comparison with PMOCOPV, which can be attributed to inter-molecular photo-induced electron transfer and delocalized π electron coupling between PMOCOPV and Y2O3∶Eu3+.
Key words：Poly(2-methoxy-5-octyloxy)-p-phenylene vinylene;Y2O3∶Eu3+;Nano-composites;Photo-induced electron transfer
孙建平1,2，马琳璞1，林 婷1 . 聚(2-甲氧基-5-辛氧基)对苯乙炔/Y2O3∶Eu3+纳米复合材料的光致电子转移效应 [J]. 光谱学与光谱分析, 2010, 30(01): 13-17.
SUN Jian-ping1,2, MA Lin-pu1, LIN Ting1 . Photo-Induced Electron Transfer Effects of Poly(2-Methoxy-5-Octyloxy)-p-Phenylene Vinylene/Y2O3∶Eu3+ Nano-Composites . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(01): 13-17.
[1] Colvin V L, Schlamp M C, Alivisatos A P.Nature, 1994, 370(4): 354. [2] Wang M Q, Wang X G.Polymer, 2008, 49(6): 1587. [3] Kim S S, Jang J, Chun C, et al.J.Photochem.Photobio.A, 2007, 188(2-3): 364. [4] Ravirajan P, Haque S A, Durrant J R, et al.Adv.Funct.Mater., 2005, 15(4): 609. [5] Qu C, Xu Z, Zhang F J, et al.J.Lumin., 2007, 122-123(1-2): 720. [6] Yang S H, Nguyen T P, Le Rendu P, et al.Composites a-Applied Science and Mauufacturing, 2005, 36(4): 509. [7] Lee C W, Chou C H, Huang J H, et al.Mater.Sci.Eng.B, 2008, 147(2-3): 307. [8] Cho J Y, Ko K Y, Do Y R.Thin Solid Films, 2007, 515(7-8): 3373. [9] Bae J S, Kim S B, Jeong J H, et al.Thin Solid Films, 2005, 471(1-2): 224. [10] XING Ming-ming, CAO Wang-he, FU Yao(邢明铭, 曹望和, 付 姚).J.Funct.Mater.(功能材料), 2006, 37(9): 1375. [11] Allcock H R.Adv.Mater., 1994, 6(2): 106. [12] Chang W P, Wang W T.Polymer, 1996, 37(19): 4229. [13] Burn P L, Holmes A B, Kraft A.Nature, 1992, 356(6364): 47. [14] Son S, Dodabalapur A, Lovinger A J.Science, 1995, 269(5222): 376. [15] Sonntag L P, Spitler M L.Journal of Phys.Chem., 1985, 89: 1453. [16] TANG Ai-wei, TENG Feng, GAO Yin-hao, et al(唐爱伟, 滕 枫, 高银浩, 等).Spectroscopy and Spectral Analysis (光谱学与光谱分析), 2006(26)12: 2169. [17] Salafsky J S.Phys.Rev.B, 1999, 59(16): 10885. [18] Salafsky J S, Lubberhuizen W H, Schropp R E I.Chem.Phys.Lett., 1998, 290(4-6): 297. [19] Kamalasanan M N, Chandra S.Appl.Phys.Lett., 1991, 59(27): 3547. [20] Morita S, Zakhidov A A, Yoshino K.Solid State Commun., 1992, 82(4): 249. [21] O’Flaherty S M, Murphy R, Hold S V.Journal of Phys.Chem.B, 2003, 107(4): 958. [22] FENG Wei, YI Wen-hui, FENG Yi-yu, et al(封 伟, 易文辉, 冯奕钰, 等).Acta Phys.Sin.(物理学报), 2006, 55(7): 3772. [23] Sauteret C, Hermann J P, Frey R.Phys.Rev.Lett., 1976, 36(16): 956.
