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Several nuclear charge radii had been calculated based on the law of A1/3 and isospin dependence Z1/3 formula which had been used to describe the charge radii data. It is achieved that the isospin dependence Z1/3 formula is superior to the generally accepted A1/3 law through mean root square deviation analysis, that is, the Z1/3 formula is more effective to describe the charge radii data. 相似文献
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Several nuclear charge radii had been calculated based on the law of A1/3 and isospin dependence Z1/3 formula which had been used to describe the charge radii data. It is achieved that the isospin dependence Z1/3 formula is superior to the generally accepted A1/3 law through mean root square deviation analysis, that is, the Z1/3 formula is more effective to describe the charge radii data. 相似文献
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使用自制的分子束源制备了聚对二甲苯(Parylene N,PPXN)薄膜。通过对该分子束源的设计和不断优化,PPXN薄膜可以在室温、10-3 Pa的较低反应压强下以0.01 nm/s~0.02 nm/s的速率沉积聚合。用红外透射光谱和原子力显微镜测量了PPXN薄膜的成分和表面形貌。结果表明,所制备的薄膜成分为PPXN,薄膜呈波浪状、无尖刺的表面形貌。准确控制的PPXN薄膜在有机电致发光二极管中用作缓冲层,对载流子的注入和传输进行调控,有效地改善了器件内部的载流子平衡。最优化结构的器件较未插入PPXN缓冲层的器件,电流效率提高80%以上。 相似文献
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