Tuning the Optical Properties of ZnO Nanorods Through Gd Doping

IF 0.8 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences Pub Date : 2022-08-30 DOI:10.1007/s40010-022-00798-5

S. K. Satpathy, U. K. Panigrahi, R. Biswal, P. Mallick

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引用次数: 1

Abstract

Optoelectronic features of Zn_1-xGd_xO (x = 0.01, 0.03 and 0.05) nanorods were explored through a series of optical characterizations. The presence of different functional groups and vibrational modes in the samples were observed through Fourier-transform infrared (FTIR) and Raman characterizations, respectively. The characteristic stretching vibrational modes of Zn–O and Gd-Zn–O were probed through FTIR. The peaks appeared in the Raman spectra are associated with the characteristics of ZnO samples. The bandgap of the ZnO sample decreased from 3.19 to 3.16 eV with increasing Gd doping concentration as evident from UV–Visible spectroscopy. Photoluminescence measurement showed the signature of intrinsic defects and the colour emission of the samples shifted more towards the green emission region with Gd doping concentration. Our study demonstrates the possible usefulness of the materials in commercial UV lighting applications.

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Gd掺杂对ZnO纳米棒光学性能的调控

Zn1-xGdxO (x = 0.01, 0.03和0.05)纳米棒的光电特性通过一系列光学表征得到。通过傅里叶变换红外(FTIR)和拉曼表征，分别观察到样品中存在不同的官能团和振动模式。利用傅里叶变换红外光谱研究了Zn-O和Gd-Zn-O的特征拉伸振动模式。拉曼光谱中出现的峰与ZnO样品的特性有关。紫外可见光谱显示，随着Gd掺杂浓度的增加，ZnO样品的带隙从3.19 eV减小到3.16 eV。光致发光测量结果表明，随着Gd掺杂浓度的增加，样品的颜色发射更多地向绿色发射区移动。我们的研究证明了这些材料在商业紫外线照明应用中的可能用途。

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来源期刊

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences 综合性期刊-综合性期刊

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： To promote research in all the branches of Science & Technology; and disseminate the knowledge and advancements in Science & Technology