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首页> 外文期刊>Crystal growth & design >Growth of PbSO4 Single-Crystal Nanorods and Optical Properties by a Microemulsion Approach
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Growth of PbSO4 Single-Crystal Nanorods and Optical Properties by a Microemulsion Approach

机译：PbSO4单晶纳米棒的生长和微乳液光学性质

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摘要

Single-crystal PbSO4(anglesite)nanorods with different diameter and aspect ratios have been synthesized by a microemulsion technique in a SDS/hexane/hexanol/water microemulsion.The effect of concentration of reactants,concentration of Surfactants,and temperature on the crystallization of PbSO4 nanorods was investigated.Room-temperature photoluminescence spectra of well-defined uniform PbSO4 nanorods give two strong emission bands at 410 and 435 nm,and the weak emission at 340 nm almost cannot be detected at an excitation energy of 4.6-5.17 eV.As the excitation energy decreases,the 380 nm emission becomes intensified.When the excitation energy is larger than 5 eV in the range of 5.39-5.90 eV,only the blue band at 380 nm was observed.
机译：通过微乳液技术，在SDS /己烷/己醇/水微乳液中合成了不同直径和长径比的单晶PbSO4（角位）纳米晶。定义明确的均匀PbSO4纳米棒的室温光致发光光谱在410和435 nm处给出两个强发射带，而在4.6-5.17 eV的激发能下几乎无法检测到340 nm处的弱发射。激发能降低，380 nm发射增强。当激发能在5.39-5.90 eV范围内大于5 eV时，仅观察到380 nm的蓝带。

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