Insight into impact of size and shape on optoelectronic properties of InX (X = As, Sb, and P) semiconductor nanoparticles: a theoretical study

IF 1.9 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Frontiers in Physics Pub Date : 2024-08-16 DOI:10.3389/fphy.2024.1447997
Gebru Tesfaye Sherka, Habte Dulla Berry
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Abstract

Because of their quantum confinement effects and adjustable features, semiconductor nanoparticles have attracted a lot of attention for their various uses in optoelectronic devices. This study investigates how size and shape variations affect the optoelectronic properties of semiconductor nanoparticles InX (X = As, Sb, and P). Using unified thermodynamics modeling, it explores the effects of these nanoparticles’ diameters on their electronic band structures, optical properties, and charge carrier dynamics. The inquiry focuses on InX nanoparticles with different sizes and nanostructure morphologies. By examining electronic band structures, the density of states, and optical absorption spectra, the size-dependent quantum confinement processes that govern the optical band gap transitions and excitonic behaviors in these semiconductor nanoparticles were made clear. Also, the influence of the shape of the nanoparticles on carrier mobility and electronic band alignment is investigated, offering insights into the possibility of controlling the morphology to customize optoelectronic capabilities. This theoretical analysis indicates that altering the optoelectronic properties of InX semiconductor nanoparticles is mostly dependent on their size and shape. Smaller nanoparticles show stronger quantum size effects, which lead to improved exciton confinement and blue shifts in the optical absorption spectra. Shape-dependent differences in the density of states and electronic band structures indicate the impact of morphology on the dynamics and recombination of charge carriers in the nanoparticles. In conclusion, this work provides important insights for the design and optimization of semiconductor nanomaterials for photovoltaic, sensing, and light-emitting applications by thoroughly examining the impact of size and shape on the optoelectronic properties of InX semiconductor nanoparticles.
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洞察尺寸和形状对 InX(X = As、Sb 和 P)半导体纳米粒子光电特性的影响:一项理论研究
由于半导体纳米粒子具有量子约束效应和可调特性,它们在光电器件中的各种用途吸引了大量关注。本研究探讨了尺寸和形状变化如何影响半导体纳米粒子 InX(X = As、Sb 和 P)的光电特性。研究利用统一热力学建模,探讨了这些纳米粒子的直径对其电子能带结构、光学特性和电荷载流子动力学的影响。研究重点是具有不同尺寸和纳米结构形态的 InX 纳米粒子。通过研究电子能带结构、态密度和光吸收光谱,阐明了这些半导体纳米粒子的光带隙跃迁和激子行为与尺寸有关的量子约束过程。此外,还研究了纳米粒子的形状对载流子迁移率和电子能带排列的影响,为控制形态以定制光电功能的可能性提供了启示。理论分析表明,改变 InX 半导体纳米粒子的光电特性主要取决于其尺寸和形状。较小的纳米粒子显示出较强的量子尺寸效应,从而改善了激子束缚和光吸收光谱的蓝移。与形状有关的状态密度和电子能带结构的差异表明了形态对纳米粒子中电荷载流子的动力学和重组的影响。总之,这项研究通过深入研究尺寸和形状对 InX 半导体纳米粒子光电特性的影响,为光伏、传感和发光应用领域的半导体纳米材料的设计和优化提供了重要启示。
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来源期刊
Frontiers in Physics
Frontiers in Physics Mathematics-Mathematical Physics
CiteScore
4.50
自引率
6.50%
发文量
1215
审稿时长
12 weeks
期刊介绍: Frontiers in Physics publishes rigorously peer-reviewed research across the entire field, from experimental, to computational and theoretical physics. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, engineers and the public worldwide.
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