Investigation of The Structural Properties of SnO2 Co-doped by (K, Dy) and (K, Sm) Synthesized by The Co-precipitation Method for Photon Conversion

2021 9th International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2021-11-23 DOI:10.1109/IRSEC53969.2021.9741198

Najoua Eraza, M. Messous, M. Naji, M. Tahri

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Abstract

We report in this work the effect of Dysporsium and Samarium doping and activated by Potassium as charge compensator on the structural properties of SnO2 nanopowders. The undoped and doped samples (K,Dy: SnO2) and (K,Sm: SnO2) at 3% K and various concentration of Dy and Sm (1%, 3 % and 5 %) ) were synthesized via a coprecipitation method.The prepared samples have been characterized by X-ray diffraction and infrared spectroscopy. The peak at 26.59° observed in XRD confirm the formation of a SnO2 phase in a rutile tetragonal structure with orientation preferences for (110). Rietveld refinement analysis revealed the contraction of lattice parameters due to doping / co-doping, with a particle size range of 12-39 nm determined using Debye Scherrer's formula. Also, the FTIR spectra confirmed the presence of Sn-O and Sn–O–Sn bonds in all the synthesized samples and the transmittance is greater in the SnO2(K⁺, Dy³⁺) than SnO2(K⁺, Sm³⁺) in the energy range of (400-4000) cm^-1.

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光子转换共沉淀法合成(K, Dy)和(K, Sm)共掺杂SnO2的结构性质研究

本文报道了掺杂镝、钐和钾作为电荷补偿剂对SnO2纳米粉体结构性能的影响。采用共沉淀法合成了K浓度为3%、Dy和Sm浓度分别为1%、3%和5%的未掺杂和掺杂样品(K,Dy: SnO2)和(K,Sm: SnO2)。用x射线衍射和红外光谱对制备的样品进行了表征。在26.59°处的XRD峰证实了SnO2相在金红石四方结构中形成，取向偏好为(110)。Rietveld细化分析表明，掺杂/共掺杂导致晶格参数收缩，采用Debye Scherrer公式确定粒径范围为12-39 nm。在400 ~ 4000 cm-1能量范围内，SnO2(K+， Dy3+)的透射率高于SnO2(K+， Sm3+)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 9th International Renewable and Sustainable Energy Conference (IRSEC)

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