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《Chinese Journal of Luminescence》 2017-09
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Eu(DBM)_3Phen Doped Poly Methyl Methacrylate Electrospun Fluorescence Fibers

LI Yue;ZHANG Hai-bang;ZHANG Jing-jing;ZHAO Xin;LIN Hai;School of Textile and Material Engineering,Dalian Polytechnic University;  
Eu( DBM)_3Phen/PMMA fibers with uniform and random orientation were obtained by electrospinning method. The diameter of the fiber is about 700 nm assigned to submicron. Under ultraviolet irradiation,the submicron fluorescent fiber emits bright red fluorescence,and its excitation spectrum shows that the effective excitation wavelength is 200-400 nm. The absolute spectral power was carried out by using an integrating sphere with a CCD detector at 367 nm UVA-LED. When the power of LED pump is 535. 76 #W,Eu( DBM)_3Phen/PMMA thin fiber layer with 80 μm is up to89% in ultraviolet absorbing,and the total absolute spectral power,emission photon number and fluorescence quantum yield in the range of 350-850 nm are 36. 56 #W,11. 46 × 10~(13) cps and12. 94%,respectively. The higher transition probability and emission cross-section of Eu~(3+) allow the fiber to absorb ultraviolet radiation effectively and convert it into visible light,therefore submicron Eu-( DBM)_3Phen/PMMA thin fiber layer has great application prospects in the improvement of solar cell conversion efficiency.
【Key Words】: Eu(DBM)_3Phen/PMMA fibers electrospinning absolute spectral parameters fluorescence quantum yield
【Fund】: 国家自然科学基金(61275057)资助项目~~
【CateGory Index】: TQ342.8
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