双光源激发Ba2GdF7@SiO2@Ag2S纳米复合材料的研究

doi:10.3969/j.issn.2095-2198.2022.06.009

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利用水热法和水浴法分别制备得到Yb³⁺、Er³⁺掺杂的Ba₂GdF₇纳米材料和 Ag₂S 纳米材料，采用正负电吸引法将以上两种纳米材料复合得到Ba₂GdF₇@SiO₂@Ag₂S纳米复合材料利用XRD和FT-IR等对Ba₂GdF₇@SiO₂@Ag₂S纳米复合材料进行表征；研究了该纳米材料的光源选择和发光强度稳定性；利用980 nm和 808 nm 激光激发该纳米复合材料，分别对其温度传感性能和光热转换性能进行研究.结果表明：Ba₂GdF₇@SiO₂@Ag₂S纳米复合材料的测温灵敏度 S_a（绝对灵敏度）和S_r（相对灵敏度）分别在343 K和303 K 取得最大值0.005 8 K^-1和1.059 8%·K^-1，其光热转换效率最高可达62.8%；将相应的研究结果与同领域研究进行比较，发现其测温以及光热转换能力在同领域研究中处于较高的水平.

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关键词: 双光源激发')" href="#">

双光源激发温度传感光热转换

Abstract:

Ba₂GdF₇ was prepared by hydrothermal method and water bath method respectively:Yb³⁺、Er³⁺and Ag²Snanomaterials were prepared by positive and negative electric attraction method to obtain Ba₂GdF₇@SiO₂@Ag₂S nanomaterials.The Ba₂GdF₇@SiO₂@Ag₂S nanomaterials were characterized by XRD and FT IR.The light source selection and luminous intensity stability of the nano material were studied.Temperature sensing and photothermal conversion properties of the composite nanomaterial were investigated by excitation of 980 nm and 808 nm laser.The results showed that the temperature measurement sensitivity S_a(absolute sensitivity) and S_r(relative sensitivity) of Ba2GdF7@SiO2@Ag2S nanomaterials reached the maximum values at 343 and 303 K，with the maximum values of 0.005 8 K^-1 and 1.059 8%·K^-1，respectively.The photothermal conversion efficiency of the composite nanomaterials reached 628%.The results are compared with those in the same field，and it is found that its temperature measurement and photothermal conversion ability are at a higher level in the research in the same field.

Key words: composite material')" href="#">

composite material double light source excitation temperature sensing photothermal conversion

出版日期: 2022-12-31 发布日期: 2024-06-06 整期出版日期: 2022-12-31

ZTFLH:

O469

基金资助:

吉林省科技发展项目(202002040JC)

通讯作者: 邹鹏(1982—)，女，吉林长春人，讲师，博士，主要从事凝聚态理论及其应用研究.

作者简介: 丁双双(1997—)，女，黑龙江哈尔滨人，硕士研究生在读，主要从事凝聚态理论及其应用研究.

引用本文:

丁双双, 邹鹏.

双光源激发Ba₂GdF₇@SiO₂@Ag₂S纳米复合材料的研究 [J]. 沈阳化工大学学报, 2022, 36(6): 527-534.
DING Shuang-shuang, ZOU Peng.

Study on Ba₂GdF₇@SiO₂@Ag₂S Nanocomposites Excited by Dual Light Sources . Journal of Shenyang University of Chemical Technology, 2022, 36(6): 527-534.

链接本文:

https://xuebao.syuct.edu.cn/CN/10.3969/j.issn.2095-2198.2022.06.009 或 https://xuebao.syuct.edu.cn/CN/Y2022/V36/I6/527

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