首页> 外文会议>Photonic fiber and crystal devices: advances in materials and innovations in device applications VII >Double Pulse Laser deposition of polymer Nanocomposite: NaYF_4:Tm~(3+),Yb~(3+) films for optical sensors and light emitting applications
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Double Pulse Laser deposition of polymer Nanocomposite: NaYF_4:Tm~(3+),Yb~(3+) films for optical sensors and light emitting applications

机译:聚合物纳米复合材料的双脉冲激光沉积:NaYF_4:Tm〜(3 +),Yb〜(3+)膜,用于光学传感器和发光应用

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摘要

The main objective of this paper is to demonstrate the feasibility of producing operationally Nanocomposite polymeric thin films for sensor and light emitting applications using the innovative modified double pulsed laser deposition (DPLD) technique. The existing PLD vacuum chamber was modified to accommodate multiple wavelength laser beams for in-situ-double-ablation/Deposition (DPLD) of multiple targets of host and dopants. Special design was made for cooling of the target to the threshold of the polymer ablation without interrupting the continuity of the ablation process. Multi-layered of nanocomposites of acrylic polymers and nanoparticles of NaYF_4:Tm~(3+),Yb~(3+)are fabricated using ultra-violet (UV) radiation (355 nm) ablating polymer targets and near-infra-red (near-IR) radiation (1064 nm) ablating inorganic targets. The films were characterized using the reflected high energy electron diffraction (RHEED), XRD , XRF, AFM, and FTIR absorption spectroscopy and tested as possible chemical sensors and light emitters.
机译:本文的主要目的是证明使用创新的改良双脉冲激光沉积(DPLD)技术生产用于传感器和发光应用的可操作纳米复合聚合物薄膜的可行性。对现有的PLD真空室进行了修改,以容纳多波长激光束,以便对主体和掺杂剂的多个目标进行原位双烧蚀/沉积(DPLD)。进行了特殊设计,以将靶材冷却至聚合物烧蚀的阈值,而不会中断烧蚀过程的连续性。利用紫外(UV)辐射(355 nm)烧蚀聚合物靶材和近红外光谱仪制备了丙烯酸聚合物纳米复合材料和NaYF_4:Tm〜(3 +),Yb〜(3+)纳米颗粒的多层结构近红外(1064 nm)辐射烧蚀无机目标。使用反射高能电子衍射(RHEED),XRD,XRF,AFM和FTIR吸收光谱对膜进行表征,并测试它们是否可能作为化学传感器和发光体。

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