Effect of magnesium doping on the structure, optical properties and photocatalytic efficiency of ZnO nanostructures deposited by atmospheric pressure MOCVD

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2024-10-24 DOI:10.1016/j.cplett.2024.141720

Arsenii Ievtushenko , Vitalii Karpyna , Liliia Myroniuk , Denys Myroniuk , Larisa Petrosian , Olena Olifan , Oleksandr Kolomys , Victor Strelchuk

引用次数: 0

Abstract

ZnO nanostructures doped by magnesium impurity were grown on Si substrates by atmospheric pressure MOCVD deposition using Zn and Mg acetylacetonates as initial precursors. XRD patterns confirm the successful incorporation of Mg ions into ZnO lattice. Room-temperature photoluminescence spectra of Mg-doped ZnO nanostructures demonstrate near-band edge emission and visible deep-level emission with ratios 2.9, 1.3 and 0.3 correspondingly for 1, 2.4 and 5.7 at. % of Mg in ZnO nanostructures. Raman measurements showed decreasing in intensity for ZnO modes with increasing Mg content. The best photodegradation rate constant was observed for ZnO NS with 2.4 at. % of Mg.

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镁掺杂对常压 MOCVD 沉积的氧化锌纳米结构的结构、光学特性和光催化效率的影响

以锌和镁乙酰丙酮酸盐为初始前驱体，通过常压 MOCVD 沉积法在硅基底上生长了掺杂镁杂质的氧化锌纳米结构。XRD 图谱证实镁离子成功地掺入了氧化锌晶格中。掺镁氧化锌纳米结构的室温光致发光光谱显示了近带边缘发射和可见深层发射，镁在氧化锌中的含量分别为 1、2.4 和 5.7 at.氧化锌纳米结构中的镁含量分别为 1、2.4 和 5.7%时，近带边缘发射和可见深层发射的比率分别为 2.9、1.3 和 0.3。拉曼测量结果表明，随着镁含量的增加，氧化锌模式的强度也在下降。镁含量为 2.4 at.%的 ZnO NS 的光降解速率常数最佳。

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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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.