[C6N2H18][SbI5]: A Lead-free Hybrid Halide Semiconductor with Exceptional Dielectric Relaxation
| العنوان: | [C6N2H18][SbI5]: A Lead-free Hybrid Halide Semiconductor with Exceptional Dielectric Relaxation |
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| المؤلفون: | Ji-Xing Gao, Xiao-Gang Chen, Guang-Quan Mei, Wei-Qiang Liao, Xiu-Ni Hua |
| المصدر: | Inorganic Chemistry. 58:4337-4343 |
| بيانات النشر: | American Chemical Society (ACS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Condensed matter physics, 010405 organic chemistry, business.industry, Chemistry, Photoconductivity, Halide, Dielectric, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, Semiconductor, Absorption edge, Relaxation (physics), Direct and indirect band gaps, Diffuse reflection, Physical and Theoretical Chemistry, business |
| الوصف: | [C6N2H18][SbI5] (1), a novel metal halide semiconductor with dielectric relaxation behavior, has been successfully synthesized, in which the cavities between the one-dimensional [SbI5] n2- polyanions are occupied by 2-methyl-1,5-pentanediammonium (2-MPDA) cations. 1 undergoes a reversible solid-state phase transition at TC = 192.7 K and shows a step-like dielectric anomaly. Interestingly, above TC, distinct dielectric dispersion in a wide temperature range is also witnessed. Remarkably, the solid state UV-vis diffuse reflectance spectrum of 1 exhibits a slightly gentler absorption edge at about 650 nm; that is, 1 adopts an indirect band gap with 1.92 electron volts. The combined narrow band gap, strong photoconductivity effect, and excellent dielectric relaxation might shed light on the exploitation of lead-free hybrid metal halide molecular materials with promising application prospects in thermoresponsive relaxation-type dielectric materials and photovoltaic conversion devices. |
| تدمد: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.8b03424 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a87490471643e29530a9ac2a47b394f5 https://doi.org/10.1021/acs.inorgchem.8b03424 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........a87490471643e29530a9ac2a47b394f5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1520510X 00201669 |
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| DOI: | 10.1021/acs.inorgchem.8b03424 |