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首页> 外文期刊>Optical Materials >Energy transfer based photoluminescence properties of (Sm3+ + Eu3+):PEO + PVP polymer films for Red luminescent display device applications
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Energy transfer based photoluminescence properties of (Sm3+ + Eu3+):PEO + PVP polymer films for Red luminescent display device applications

机译：（Sm3 + + Eu3 +）：PEO + PVP聚合物薄膜基于能量转移的光致发光特性，用于红色发光显示设备

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摘要

Eu3+:PEO + PVP, Sm3+:PEO + PVP and co-doped Sm3+ + Eu3+:PEO + PVP polymer films have successfully been synthesized by solution casting method. For these polymer films, their XRD, FTIR and RAMAN spectral profiles were studied systematically. Both absorption and photoluminescence spectra have been assessed by evaluating their optical properties. The Sm3+:PEO + PVP and Eu3+:PEO + PVP polymer film has displayed a reddish-orange and red emissions at 596 nm and 619 nm respectively under an UV lamp. A reddish-orange emission was found for Sm3+:PEO + PVP polymer film at 596 nm ((4)G(5/2) -> H-6(7/2)) and its lifetime has also been evaluated suitably. Red emission at 619 nm ((4)G(5/2) -> H-6(7/2)) of Eu3+ has been identified for Eu3+:PEO + PVP polymer film and its lifetime are also evaluated. The photoluminescence efficiency of Eu3+ ion has been enhanced due to the addition of Sm3+ by means of an energy transfer process. The energy transfer mechanism, from Sm3+ to Eu3+ has been clearly established. At 0.1 wt% concentration of Sm3+ ions (sensitizer), the photoluminescence efficiency of the Eu3+ ion (activator) has been significantly enhanced in co-doped sample through energy transfer from Sm3+ to Eu3+ in the polymer matrix. The energy transfer process has been analyzed using lifetime decay dynamics. From the obtained results, these polymer materials could be proposed as potential Red luminescent optical materials. (C) 2015 Published by Elsevier B.V.
机译：通过溶液流延法成功合成了Eu3 +：PEO + PVP，Sm3 +：PEO + PVP和共掺杂的Sm3 + + Eu3 +：PEO + PVP聚合物薄膜。对于这些聚合物薄膜，系统地研究了它们的XRD，FTIR和RAMAN光谱图。吸收光谱和光致发光光谱都通过评估其光学性质进行了评估。 Sm3 +：PEO + PVP和Eu3 +：PEO + PVP聚合物薄膜在紫外灯下分别在596 nm和619 nm处显示红橙色和红色发射。对于Sm3 +：PEO + PVP聚合物薄膜，在596 nm处发现了红橙色发射（（4）G（5/2）-> H-6（7/2）），还对其寿命进行了适当的评估。 Eu3 +：PEO + PVP聚合物薄膜的Eu3 +在619 nm处有红色发射（（4）G（5/2）-> H-6（7/2）），并且还评估了其寿命。由于通过能量转移过程添加了Sm3 +，Eu3 +离子的光致发光效率得到了提高。从Sm3 +到Eu3 +的能量转移机制已经明确建立。在浓度为0.1 wt％的Sm3 +离子（敏化剂）下，通过从聚合物基质中Sm3 +到Eu3 +的能量转移，共掺杂样品中Eu3 +离子（活化剂）的光致发光效率得到显着提高。已经使用寿命衰减动力学分析了能量转移过程。从获得的结果来看，这些聚合物材料可以被建议作为潜在的红色发光光学材料。 （C）2015由Elsevier B.V.发布

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