当前位置: X-MOL 学术J. Lumin. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Influence of Al3+ and Sb3+ ions on thermo and photoluminescence properties of Pr2O3 doped PbO – SiO2 glasses for optical use
Journal of Luminescence ( IF 3.6 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.jlumin.2020.117473
Padala Ashok , Ravi Kumar Guntu , G. Bhikshamaiah , Y. Markandeya , M. Madhu , Kore Anusha , N. Jahangeer , G. Anil Kumar , N. Ch. Sriman Narayana Iyengar , Ch. Srinivasa Rao

Abstract The chemical composition of (SiO2)59.9 – (PbO)30 – (Pr2O3)0.1 – (Sb2O3)x: (Al2O3)y – x have chosen for present glass synthesis, where the variable ‘x’ varies from 0 to 10 mol% and againstly ‘y’ varies from 10 to 0 mol% with a step size of 2 mol%. The samples were characterized by structural, photo and thermoluminescence techniques. The evolutions of thermal stability, elastic modulus, micro hardness and glass transition quantities advised that they are mechanically hard in nature. The γ - irradiated trap-depth parameters such as A.E. (∼0.371eV) and shape symmetry ratio (∼0.236) related to the thermoluminiscence characterization advised that the sample code ‘PAS6’ is a useful TL asset. The Judd - Ofelt quantities are derived from optical absorption spectra such as Ω2, Ω4 and Ω6 are found to be best for the glass code ‘PAS6’ (∼8.64, ∼4.65 and ∼3.88 × 10−20 cm2) is a useful optical resource. Radiative parameters derived from photoluminescence characterization such as spectroscopic quality factor (∼1.198), effective bandwidth (Δλ ∼ 32 nm), transition probability (At = 1271 s−1), stimulated emission cross section (σ = 1.321 × 10−20 cm2), branching ratio (β ∼ 49%) and radiative life time (τrad = 217 μs) are advising that the sample code ‘PAS6’ is a useful luminescent resource for various optical applications.

中文翻译:

Al3+ 和 Sb3+ 离子对光学用 Pr2O3 掺杂 PbO-SiO2 玻璃的热和光致发光性能的影响

摘要 (SiO2)59.9 – (PbO)30 – (Pr2O3)0.1 – (Sb2O3)x: (Al2O3)y – x 已选择用于目前的玻璃合成,其中变量“x”从 0 到 10 mol % 和相反的“y”在 10 到 0 mol% 之间变化,步长为 2 mol%。通过结构、光致发光和热致发光技术对样品进行表征。热稳定性、弹性模量、显微硬度和玻璃化转变量的演变表明它们本质上是机械硬的。γ - 辐照陷阱深度参数,例如与热致发光特性相关的 AE (~0.371eV) 和形状对称比 (~0.236),表明示例代码“PAS6”是有用的 TL 资产。Judd-Ofelt 量来自光学吸收光谱,例如 Ω2、Ω4 和 Ω6 被发现最适合玻璃代码“PAS6”(~8.64,~4. 65 和 ~3.88 × 10−20 cm2) 是一种有用的光学资源。源自光致发光特性的辐射参数,例如光谱品质因数 (∼1.198)、有效带宽 (Δλ∼ 32 nm)、跃迁概率 (At = 1271 s−1)、受激发射截面 (σ = 1.321 × 10−20 cm2) 、分支比 (β ∼ 49%) 和辐射寿命 (τrad = 217 μs) 表明示例代码“PAS6”是适用于各种光学应用的有用发光资源。
更新日期:2020-11-01
down
wechat
bug