High-κ Samarium-Based Metal-Organic Framework for Gate Dielectric Applications

Abhishek Pathak; Guan Ru Chiou; Narsinga Rao Gade; Muhammad Usman; Shruti Mendiratta; Tzuoo-Tsair Luo; Tien Wen Tseng; Jenq-Wei Chen; Fu-Rong Chen; Kuei-Hsien Chen; Li-Chyong Chen; Kuang-Lieh Lu

doi:10.1021/acsami.7b03959

High-κ Samarium-Based Metal-Organic Framework for Gate Dielectric Applications

Abhishek Pathak, Guan Ru Chiou, Narsinga Rao Gade, Muhammad Usman, Shruti Mendiratta, Tzuoo-Tsair Luo, Tien Wen Tseng, Jenq-Wei Chen, Fu-Rong Chen, Kuei-Hsien Chen^*, Li-Chyong Chen^*, Kuang-Lieh Lu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

29 Citations (Scopus)

Abstract

The self-assembly of a samarium-based metal-organic framework [Sm₂(bhc)(H₂O)₆]_n (1) in good yield was achieved by reacting Sm(NO₃)₃·6H₂O with benzenehexacarboxylic acid (bhc) in a mixture of H₂O-EtOH under hydrothermal conditions. A structural analysis showed that compound 1 crystallized in a space group of Pnmn and adopted a 3D structure with (4,8) connected nets. Temperature dependent dielectric measurements showed that compound 1 behaves as a high dielectric material with a high dielectric constant (κ = 45.1) at 5 kHz and 310 K, which is comparable to the values for some of the most commonly available dielectric inorganic metal oxides such as Sm₂O₃, Ta₂O₅, HfO₂, and ZrO₂. In addition, electrical measurements of 1 revealed an electrical conductivity of about 2.15 × 10^-7 S/cm at a frequency of 5 kHz with a low leakage current (I_leakage = 8.13 × 10^-12 Amm^-2). Dielectric investigations of the Sm-based MOF provide an effective path for the development of high dielectric materials in the future.

Original language	English
Pages (from-to)	21872-21878
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	26
Online published	8 Jun 2017
DOIs	https://doi.org/10.1021/acsami.7b03959
Publication status	Published - 5 Jul 2017
Externally published	Yes

Research Keywords

dielectric
high-κ
hydrothermal
metal-organic framework
samarium

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title = "High-κ Samarium-Based Metal-Organic Framework for Gate Dielectric Applications",

abstract = "The self-assembly of a samarium-based metal-organic framework [Sm2(bhc)(H2O)6]n (1) in good yield was achieved by reacting Sm(NO3)3·6H2O with benzenehexacarboxylic acid (bhc) in a mixture of H2O-EtOH under hydrothermal conditions. A structural analysis showed that compound 1 crystallized in a space group of Pnmn and adopted a 3D structure with (4,8) connected nets. Temperature dependent dielectric measurements showed that compound 1 behaves as a high dielectric material with a high dielectric constant (κ = 45.1) at 5 kHz and 310 K, which is comparable to the values for some of the most commonly available dielectric inorganic metal oxides such as Sm2O3, Ta2O5, HfO2, and ZrO2. In addition, electrical measurements of 1 revealed an electrical conductivity of about 2.15 × 10-7 S/cm at a frequency of 5 kHz with a low leakage current (Ileakage = 8.13 × 10-12 Amm-2). Dielectric investigations of the Sm-based MOF provide an effective path for the development of high dielectric materials in the future.",

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author = "Abhishek Pathak and Chiou, {Guan Ru} and Gade, {Narsinga Rao} and Muhammad Usman and Shruti Mendiratta and Tzuoo-Tsair Luo and Tseng, {Tien Wen} and Jenq-Wei Chen and Fu-Rong Chen and Kuei-Hsien Chen and Li-Chyong Chen and Kuang-Lieh Lu",

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T1 - High-κ Samarium-Based Metal-Organic Framework for Gate Dielectric Applications

AU - Pathak, Abhishek

AU - Chiou, Guan Ru

AU - Gade, Narsinga Rao

AU - Usman, Muhammad

AU - Mendiratta, Shruti

AU - Luo, Tzuoo-Tsair

AU - Tseng, Tien Wen

AU - Chen, Jenq-Wei

AU - Chen, Fu-Rong

AU - Chen, Kuei-Hsien

AU - Chen, Li-Chyong

AU - Lu, Kuang-Lieh

PY - 2017/7/5

Y1 - 2017/7/5

N2 - The self-assembly of a samarium-based metal-organic framework [Sm2(bhc)(H2O)6]n (1) in good yield was achieved by reacting Sm(NO3)3·6H2O with benzenehexacarboxylic acid (bhc) in a mixture of H2O-EtOH under hydrothermal conditions. A structural analysis showed that compound 1 crystallized in a space group of Pnmn and adopted a 3D structure with (4,8) connected nets. Temperature dependent dielectric measurements showed that compound 1 behaves as a high dielectric material with a high dielectric constant (κ = 45.1) at 5 kHz and 310 K, which is comparable to the values for some of the most commonly available dielectric inorganic metal oxides such as Sm2O3, Ta2O5, HfO2, and ZrO2. In addition, electrical measurements of 1 revealed an electrical conductivity of about 2.15 × 10-7 S/cm at a frequency of 5 kHz with a low leakage current (Ileakage = 8.13 × 10-12 Amm-2). Dielectric investigations of the Sm-based MOF provide an effective path for the development of high dielectric materials in the future.

AB - The self-assembly of a samarium-based metal-organic framework [Sm2(bhc)(H2O)6]n (1) in good yield was achieved by reacting Sm(NO3)3·6H2O with benzenehexacarboxylic acid (bhc) in a mixture of H2O-EtOH under hydrothermal conditions. A structural analysis showed that compound 1 crystallized in a space group of Pnmn and adopted a 3D structure with (4,8) connected nets. Temperature dependent dielectric measurements showed that compound 1 behaves as a high dielectric material with a high dielectric constant (κ = 45.1) at 5 kHz and 310 K, which is comparable to the values for some of the most commonly available dielectric inorganic metal oxides such as Sm2O3, Ta2O5, HfO2, and ZrO2. In addition, electrical measurements of 1 revealed an electrical conductivity of about 2.15 × 10-7 S/cm at a frequency of 5 kHz with a low leakage current (Ileakage = 8.13 × 10-12 Amm-2). Dielectric investigations of the Sm-based MOF provide an effective path for the development of high dielectric materials in the future.

KW - dielectric

KW - high-κ

KW - hydrothermal

KW - metal-organic framework

KW - samarium

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High-κ Samarium-Based Metal-Organic Framework for Gate Dielectric Applications

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