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稀土铝磷酸盐玻璃中镨离子的可见光致发光

Visible Photoluminescence of Praseodymium Ions in Rare-earth Aluminum Phosphate Glass
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摘要 研究了稀土铝磷酸盐5.8Li2O-3CaO-5BaO-6Al2O3-4.2La2O3-66P2O5(LCBALP)玻璃中镨离子的可见光致发光特性,采用积分球测试系统对其绝对荧光光谱进行表征。1D2→3H4的自发辐射跃迁几率和最大受激发射截面分别为926.5 s-1和3.5×10-21cm2。在蓝色LED激发下,镨离子可见特征发射峰的辐射通量和光通量分别为112.6μW和29.7 mlm,其可见特征发射的总荧光量子产率为4.1%。光学玻璃中镨离子的光谱评估为其在光电子器件和紧凑型照明光源领域的发展提供了重要的参考依据。 Visible photoluminescence properties of praseodymium ions in rare-earth aluminum phosphate 5. 8Li2O-3CaO-5BaO-16Al2O3-4. 2La2O3-66P2O5( LCBALP) glass were investigated and the absolute fluorescence spectra were measured and calibrated in an integrating sphere. The spontaneous emission probability and the maximum stimulated emission cross-section corresponding to the1D2→3H4transition are 926. 5 s- 1and 3. 5 × 10- 21cm2,respectively. Under the blue LED excitation,the radiant flux and the luminous flux for the visible emission bands of LCBALP glass are identified to be 112. 6 μW and 29. 7 mlm,respectively. The total quantum yield for the visible fluorescence is determined to be 4. 1%. The spectral evaluations of praseodymium ions in optical glass provide a reliable reference in developing optoelectronic devices and compact lighting sources.
出处 《发光学报》 EI CAS CSCD 北大核心 2013年第10期1306-1312,共7页 Chinese Journal of Luminescence
基金 辽宁省自然科学基金(201202011)资助项目
关键词 可见光致发光 镨离子 稀土铝磷酸盐玻璃 visible photoluminescence praseodymium ions rare-earth aluminum phosphate glass
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