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一种零维(CHN)[BiCl]混合材料:合成及其结构、光学和电导率

A zero-dimensional (CHN)[BiCl] hybrid material: synthesis and structural, optical, and electrical conductivity.

作者信息

Altalib Rima, Ghoudi Arafet, Tliha Mohamed, Naouari Raja, Rekik Walid, Lhoste Jerome, Oueslati Abderrazek

机构信息

Laboratory of Spectroscopic Characterization and Optical Materials, Faculty of Sciences, University of Sfax B.P. 1171 3000 Sfax Tunisia

Department of Physics, Al-Qunfudah University College, Umm Al-Qura University Saudi Arabia.

出版信息

RSC Adv. 2025 Sep 17;15(41):33946-33961. doi: 10.1039/d5ra01766a.

Abstract

The organic-inorganic hybrid compounds have attracted considerable attention due to their exceptional properties and diverse applications. This study successfully synthesized the hybrid compound (CHN)[BiCl] a slow evaporation technique at room temperature. Structural analysis confirmed a triclinic crystal system within the 1̄ space group, while thermal investigations revealed a phase transition at 420 K. Optical characterization through UV-visible absorption spectroscopy highlighted its semiconducting nature. Electrical and dielectric measurements performed using complex impedance spectroscopy (CIS) demonstrated a strong dependence on both frequency and temperature. Nyquist plots (-'' ') exhibited a single semicircular arc, indicative of non-Debye relaxation behavior. The AC conductivity exhibits behavior consistent with Jonscher's universal power law, while temperature-dependent analysis indicates that the correlated barrier-hopping (CBH) model governs the predominant conduction mechanism. Notably, the material exhibits a high dielectric constant, underscoring its potential for energy storage applications.

摘要

有机-无机杂化化合物因其优异的性能和多样的应用而备受关注。本研究通过室温下的缓慢蒸发技术成功合成了杂化化合物(CHN)[BiCl]。结构分析证实其在1̄空间群内为三斜晶系,而热研究揭示了在420 K时的相变。通过紫外-可见吸收光谱进行的光学表征突出了其半导体性质。使用复阻抗谱(CIS)进行的电学和介电测量表明其对频率和温度都有很强的依赖性。奈奎斯特图(-'' ')呈现出单个半圆弧,表明存在非德拜弛豫行为。交流电导率表现出与琼舍尔通用幂律一致的行为,而温度依赖性分析表明相关势垒跳跃(CBH)模型主导着主要的传导机制。值得注意的是,该材料具有高介电常数,突出了其在储能应用方面的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f097/12442237/b5eaa33c3808/d5ra01766a-f1.jpg

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