Electron transport of chlorine-doped PbSnS2 n-type polycrystals

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-19 DOI:10.1016/j.matlet.2025.138609

E.V. Argunov , E.V. Chernyshova , F.Yu. Bochkanov , M.A. Seredina , K.A. Shcherbakova , Yu.M. Kuznetsov , A.V. Zdoroveishchev , M.V. Dorokhin , D.Yu. Karpenkov

引用次数: 0

Abstract

In this study, polycrystalline samples of the compounds PbSnS₂ and PbSnS_1.94Cl_0.06 were investigated. These samples were obtained by liquid-phase synthesis, followed by mechanical grinding and consolidation by spark plasma sintering. It was found that the substitution of sulfur positions with chlorine resulted in a significant increase in the mobility of charge carriers, from 9.54 to 931.12 cm²⋅V⁻¹⋅s⁻¹, at 415 K. Furthermore, the power factor at 750 K was determined to be 0.25 mW⋅m⁻¹⋅K⁻² for the PbSnS_1.94Cl_0.06 sample. A comparative analysis of the electro-transport properties of single- and polycrystalline samples was conducted, thereby revealing the predominant role of the scattering of charge carriers at grain boundaries and defects in the latter.

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掺氯PbSnS2 n型多晶的电子输运

本研究对化合物PbSnS2和PbSnS1.94Cl0.06的多晶样品进行了研究。这些样品是通过液相合成，然后机械研磨和火花等离子烧结固结得到的。结果表明，在415 K时，氯取代硫使得载流子的迁移率从9.54增加到931.12 cm2⋅V−1⋅s−1。在750 K时，PbSnS1.94Cl0.06样品的功率因数为0.25 mW⋅m−1⋅K−2。对单晶和多晶样品的电输运特性进行了比较分析，揭示了晶界处载流子散射和晶界处缺陷的主导作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive