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对 8 -羟基喹啉铝 (Alq3)高分子复合物薄膜的的瞬态荧光特性和机理进行了研究 ,发现复合物薄膜的荧光寿命比 Alq3样品的寿命明显缩短 ,荧光峰值波长紫移 ,高分子基质引起的淬灭过程可能是导致复合物薄膜寿命降低的主要原因 ,而 Alq3分子与基质分子间的互作用则引起荧光峰值波长的移动。
The transient fluorescence characteristics and mechanism of Alq3 composite films were investigated. It was found that the fluorescence lifetime of composite films was significantly shorter than that of Alq3 samples, the fluorescence peak wavelength shifted purple, The quenching caused by the matrix may be the main reason for the decrease of the lifetime of the composite film, and the interaction between the Alq3 molecule and the matrix molecule causes the shift of the fluorescence peak wavelength.