Tailoring Stark effect in the 1.54 μm emission of Er-doped ZnO thin films

被引：4
|
作者：
Ianhez-Pereira, Camila [1 ]
Rodrigues, Ariano De Giovanni [1 ]
Franco de Godoy, Marcio Peron [1 ]
机构：
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
来源：
SCRIPTA MATERIALIA | 2021年 / 192卷
基金：
巴西圣保罗研究基金会;
关键词：
Thin films; Optical spectroscopy; Zinc oxide; Infrared photonics; Spray-pyrolysis; OPTICAL-PROPERTIES; INFRARED-EMISSION; ENERGY-TRANSFER; PHOTOLUMINESCENCE; GLASSES; GROWTH; ERBIUM; IONS; CO;
D O I：
10.1016/j.scriptamat.2020.10.013
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report a study on the infrared optical emission of Er3+ inserted on ZnO hosts. The doping process was carried out during the growth of thin films by spray pyrolysis. The precursor solutions consisted of zinc acetate and erbium chloride proportionally diluted in distilled water, producing films in a clean and cost-effective process. The different molarity conditions employed here, M-10(-3) and M-10(-1), provided the growth of high textured c-axis, optical transparent ZnO, and white powder-like ZnO films, respectively. The infrared emissions at 0.8 eV (1.5 Am) are affected by the level manifolds due to the Stark effect, which is found to be strongly dependent on synthesis parameters. Lower crystallinity implies mitigation of the strong electric field in c-direction, reducing the intensity of the splitting caused by Stark effect. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：102 / 105
页数：4
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