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Nd:YbAG 纳米晶的制备与光谱性能

DOI: 10.14062/j.issn.0454-5648.2015.11.14

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Abstract:

采用碳酸盐共沉淀法制备了钕掺杂镱铝石榴石(NdYb3Al5O12;NdYbAG)纳米晶。研究了合成溶液的pH值、煅烧温度和Nd3+掺杂量等对样品的相组成、形貌和发光性能的影响。结果表明样品结构与YbAG结构相符合;NdYbAG纳米晶平均粒度约为50nm。Nd3+掺杂的摩尔分数为3.5%时,样品的上转换蓝光最强,对应Nd3+的2G9/2→4I9/2能级跃迁;Nd3+掺杂量为1.5%时,上转换绿光最强,对应Nd3+的2G7/2→4I9/2能级跃迁;当Nd3+掺杂量为3%时,近红外区荧光性能最佳,对应Nd3+的4F3/2→4I11/2能级跃迁,样品具备良好的发光特性。

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