InGaAsSb/GaAsSb量子点结构

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Micro & Nano Letters Pub Date : 2023-02-22 DOI:10.1049/mna2.12159

Mushtaq Obaid Oleiwi, Baqer O. Al-Nashy, Sadeq Kh. Ajeel, Amin H. Al-Khursan

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引用次数: 3

摘要

这项工作研究了I n x G a 1−x的模态增益A s y s b 1−y/Ga a s s b$I{n_x}G｛a_｛1-x｝｝a{s_y}S{b_{1-y}}/GaAsSb$四元量子点（QD）结构。四元结构在实现晶格匹配系统方面更加灵活。首先，In和As的摩尔分数是不同的。研究了四种摩尔分数（x=0.01，0.03，0.05，$（x\；=\；0.01，\；0.03，\；0.05，\；$和0.07），并且它们的发射波长覆盖范围571.4−5000 nm$571.4-5000 nm｝$。In和As摩尔分数的增加都会导致波长红移。还研究了掺杂，其中结构表现出五倍的模态增益增量，并且在掺杂下波长发生蓝移。这些结构表现出多峰行为，这在选择所需波长的应用中是必不可少的。这些结果表明，这些结构可以在紫外线、可见光和红外（IR）波长范围内工作。

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InGaAsSb/GaAsSb quantum dot structures

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InGaAsSb/GaAsSb quantum dot structures

This work studies the modal gain from $I n_{x} G a_{1 - x} A s_{y} S b_{1 - y} / G a A s S b$ quaternary quantum dots (QD) structures at different mole fractions of the structure. The quaternary structures are more flexible in attaining lattice-matching systems. First, the In- and As-mole fractions are varied. Four In-mole fractions are studied $(x = 0.01, 0.03, 0.05,$ and 0.07), and their emitted wavelengths cover the range $571.4 - 5000 nm$ . Both In- and the As-mole fraction increment results in a red-shifted wavelength. Doping is also investigated where the structures are exhibited five times increment of modal gain, and the wavelength is blue-shifted under doping. A multi-peak behaviour is exhibited by these structures, which is essential in applications for choosing the required wavelength. These results promise that these structures can work in UV, visible, and infrared (IR) wavelength ranges.

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来源期刊

Micro & Nano Letters 工程技术-材料科学：综合

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

2.8 months

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