Scholarlink

<p>Hybrid materials such as CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> have attracted significant attention due to their exceptional properties and promising potential in photovoltaic, optoelectronic, and sensing applications. However, achieving the coexistence of dielectric switching or ferroelectricity and semiconducting behavior within a single material remains a considerable challenge. Tailoring the halogen or metal components and controlling the dimensionality of the inorganic framework provide opportunities to design new high-performance multifunctional materials. In this context, a novel antimony-based organic–inorganic semiconducting hybrid compound, Tris (<i>N</i>,<i> N</i>-dimethyl-butylammonium) nonaiododiantimonate (III) [(CH<sub>3</sub>)<sub>2</sub>C<sub>4</sub>H<sub>9</sub>NH]<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> (<b>DMBA</b>)<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub>, adopting a zero-dimensional structure, has been synthesized. Notably, this material undergoes distinct structural phase transitions, as confirmed by DSC and variable-temperature XRD analyses between 5 and 45&#xa0;°C. Remarkably, it exhibits switchable dielectric behavior with <i>λ</i>-type thermal anomalies around 150–250&#xa0;K during heating and cooling cycles, indicating a reversible phase shift. Single-crystal structural analysis reveals that the framework is stabilized by hydrogen bonding interactions, enabling efficient charge transport. In addition, the compound displays semiconducting behavior with a narrow optical bandgap of ~ 2.08&#xa0;eV and high thermal stability up to 600&#xa0;K. Its significant photocurrent response under illumination further supports its potential in optoelectronic applications. The combination of ferroelectric, dielectric, and semiconducting features offers a promising platform for multifunctional materials in advanced photovoltaic and optoelectronic devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

(C6H16N)3Sb2I9: thermally switchable dielectric and semiconducting hybrid with structural phase transition

  • 期刊论文

  • 发表日期：

    2026年6月2日

查看全文
  • Asma Khan,
  • Mohsin Ejaz,
  • Saad Mehmood,
  • Waleed Abid,
  • Muhammad Faizan Zubair

摘要

Hybrid materials such as CH3NH3PbI3 have attracted significant attention due to their exceptional properties and promising potential in photovoltaic, optoelectronic, and sensing applications. However, achieving the coexistence of dielectric switching or ferroelectricity and semiconducting behavior within a single material remains a considerable challenge. Tailoring the halogen or metal components and controlling the dimensionality of the inorganic framework provide opportunities to design new high-performance multifunctional materials. In this context, a novel antimony-based organic–inorganic semiconducting hybrid compound, Tris (N, N-dimethyl-butylammonium) nonaiododiantimonate (III) [(CH3)2C4H9NH]3Sb2I9 (DMBA)3Sb2I9, adopting a zero-dimensional structure, has been synthesized. Notably, this material undergoes distinct structural phase transitions, as confirmed by DSC and variable-temperature XRD analyses between 5 and 45 °C. Remarkably, it exhibits switchable dielectric behavior with λ-type thermal anomalies around 150–250 K during heating and cooling cycles, indicating a reversible phase shift. Single-crystal structural analysis reveals that the framework is stabilized by hydrogen bonding interactions, enabling efficient charge transport. In addition, the compound displays semiconducting behavior with a narrow optical bandgap of ~ 2.08 eV and high thermal stability up to 600 K. Its significant photocurrent response under illumination further supports its potential in optoelectronic applications. The combination of ferroelectric, dielectric, and semiconducting features offers a promising platform for multifunctional materials in advanced photovoltaic and optoelectronic devices.