Effect of the V/III ratio on the quality of strain-balanced GaInAs/AlInAs superlattices in quantum cascade lasers

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-03-04 DOI:10.1016/j.optmat.2025.116882

Shiya Zhang , Lianqing Zhu , Lidan Lu , Jintao Cui , Han Jia , Shuhao Du , Tuo Chen , Mingyu Li

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引用次数: 0

Abstract

The epitaxial growth of strain-balanced III-V ternary alloys remains a critical challenge for advancing the industrialization of quantum cascade lasers (QCLs). In this study, we propose a calibration approach for strain-balanced superlattice composition and investigate the impact of V/III ratios on the growth of strain-balance Ga_0.31In_0.69As/Al_0.64In_0.36As/InP superlattices. Using a combination of atomic force microscopy (AFM), X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive spectroscopy (SEM/EDS), photoluminescence (PL), and numerical analysis, a low threshold point for the growth conditions of V/III in the system of this component is found. Notably, a V/III ratio of 10 is found to optimize surface morphology and ensure high-quality internal structures. These findings offer a valuable reference for the epitaxial growth of complex structures in QCLs, facilitating further advancements in this field.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.