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制备了三种不同链长烷基铵修饰的钙钛矿纳米粒子(CH3NH3)x(CH3(CH2)3NH3)(1-x)PbBr3(NP-C4),(CH3NH3)x(CH3(CH2)7NH3)(1-x)PbBr3(NP-C8)和(CH3NH3)x(CH3(CH2)11NH3)(1-x)PbBr3(NP-C12).x射线粉末衍射实验表明,这三种纳米粒子均为纯立方相.