Broadband dielectric behavior of an MIL-100 metal–organic framework as a function of structural amorphization
Autor: | Annika F. Möslein, Mario Gutiérrez, Mark D. Frogley, Barbara E. Souza, Arun Singh Babal, Jin-Chong Tan |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Phase transition
Materials science Infrared Phonon Terahertz radiation business.industry FOS: Physical sciences 02 engineering and technology Dielectric Condensed Matter - Soft Condensed Matter 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Amorphous solid Molecular vibration Materials Chemistry Electrochemistry Microelectronics Optoelectronics Soft Condensed Matter (cond-mat.soft) 0210 nano-technology business |
Zdroj: | ACS Applied Electronic Materials |
Popis: | The performance of modern electronics is associated with the multi-layered interconnects, encouraging the development of a low-k dielectrics. Herein, we studied the effects of phase transition from crystalline to amorphous on dielectric, optical and electrical properties of MIL-100 (Fe) and Basolite F300 metal-organic framework (MOF) obtained using different synthesis techniques in both the radio (4-1.5 MHz) and infrared (1.2-150 THz) frequency regimes, which are important for the microelectronics, infrared optical sensors, and high-frequency telecommunications. The impact of amorphization on broadband dielectric response was established based on: (1) The comparison in the dielectric characteristics of a commercially available amorphous Basolite F300 versus a mechanochemically synthesized crystalline MIL-100 in the MHz region. (2) By tracking the frequency shifts in the vibrational modes of MIL-100 structure in the far-IR (phonons) and mid-IR regions. We showed that various parameters such as pelleting pressure, temperature, frequency, density, and degree of amorphization greatly affect the dielectric properties of the framework. We also investigated the influence of temperature (20-100 {\deg}C) on the electric and dielectric response in the MHz region, crucial for all electronic devices. Comment: 23 pages, 5 Figures, Supporting Information (34 pages) |
Databáze: | OpenAIRE |
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