Improved Capacitive Performance and Polarization Sustainability of Silver Stannate Nanoparticles: The Role of Carbon Nitride Incorporation

Sarit K. Ghosh; Venkata Perla; Kaushik Mallick

doi:10.1021/acsaelm.2c00190

Improved Capacitive Performance and Polarization Sustainability of Silver Stannate Nanoparticles: The Role of Carbon Nitride Incorporation

Sarit K. Ghosh, Venkata Perla, Kaushik Mallick

Chemical Sciences

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A wet chemical, complexation-mediated route has been applied for the synthesis of organic molecule-stabilized silver stannate, Ag2SnO3 (ASO), nanoparticles. The system was functionalized with carbon nitride (ASO-CN). Both the systems (ASO and ASO-CN) were designed in the form of devices for the measurement of dielectric, ac conductivity, impedance, and electric field-induced polarization properties. The enhancement of the capacitive performance was noticed due to the incorporation of carbon nitride to silver stannate. The ac conductivity study showed small polaron tunneling and correlated barrier hopping types of the conduction mechanism for both ASO- and ASO-CN-based devices. A fatigue-free electric field-induced polarization hysteresis loop was observed at ±1 and ±5 kV/mm field conditions for ASO and ASO-CN systems and attained the maximum polarization values of 0.05 and 0.31 μC/cm2, respectively, for 103 cycles. The time-dependent polarization stability was analyzed for 103 s for both the devices. The sustainability of the ASO-CN-based device was higher compared with that of the ASO-based system.

Original language	English
Pages (from-to)	2032-2039
Number of pages	8
Journal	ACS Applied Electronic Materials
Volume	4
Issue number	4
DOIs	https://doi.org/10.1021/acsaelm.2c00190
Publication status	Published - 26 Apr 2022

Keywords

capacitance
carbon nitride
dielectric breakdown
field-driven polarization
organic-inorganic hybrid system
silver stannate

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrochemistry
Materials Chemistry

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10.1021/acsaelm.2c00190

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title = "Improved Capacitive Performance and Polarization Sustainability of Silver Stannate Nanoparticles: The Role of Carbon Nitride Incorporation",

abstract = "A wet chemical, complexation-mediated route has been applied for the synthesis of organic molecule-stabilized silver stannate, Ag2SnO3 (ASO), nanoparticles. The system was functionalized with carbon nitride (ASO-CN). Both the systems (ASO and ASO-CN) were designed in the form of devices for the measurement of dielectric, ac conductivity, impedance, and electric field-induced polarization properties. The enhancement of the capacitive performance was noticed due to the incorporation of carbon nitride to silver stannate. The ac conductivity study showed small polaron tunneling and correlated barrier hopping types of the conduction mechanism for both ASO- and ASO-CN-based devices. A fatigue-free electric field-induced polarization hysteresis loop was observed at ±1 and ±5 kV/mm field conditions for ASO and ASO-CN systems and attained the maximum polarization values of 0.05 and 0.31 μC/cm2, respectively, for 103 cycles. The time-dependent polarization stability was analyzed for 103 s for both the devices. The sustainability of the ASO-CN-based device was higher compared with that of the ASO-based system.",

keywords = "capacitance, carbon nitride, dielectric breakdown, field-driven polarization, organic-inorganic hybrid system, silver stannate",

author = "Ghosh, {Sarit K.} and Venkata Perla and Kaushik Mallick",

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AU - Mallick, Kaushik

PY - 2022/4/26

Y1 - 2022/4/26

N2 - A wet chemical, complexation-mediated route has been applied for the synthesis of organic molecule-stabilized silver stannate, Ag2SnO3 (ASO), nanoparticles. The system was functionalized with carbon nitride (ASO-CN). Both the systems (ASO and ASO-CN) were designed in the form of devices for the measurement of dielectric, ac conductivity, impedance, and electric field-induced polarization properties. The enhancement of the capacitive performance was noticed due to the incorporation of carbon nitride to silver stannate. The ac conductivity study showed small polaron tunneling and correlated barrier hopping types of the conduction mechanism for both ASO- and ASO-CN-based devices. A fatigue-free electric field-induced polarization hysteresis loop was observed at ±1 and ±5 kV/mm field conditions for ASO and ASO-CN systems and attained the maximum polarization values of 0.05 and 0.31 μC/cm2, respectively, for 103 cycles. The time-dependent polarization stability was analyzed for 103 s for both the devices. The sustainability of the ASO-CN-based device was higher compared with that of the ASO-based system.

AB - A wet chemical, complexation-mediated route has been applied for the synthesis of organic molecule-stabilized silver stannate, Ag2SnO3 (ASO), nanoparticles. The system was functionalized with carbon nitride (ASO-CN). Both the systems (ASO and ASO-CN) were designed in the form of devices for the measurement of dielectric, ac conductivity, impedance, and electric field-induced polarization properties. The enhancement of the capacitive performance was noticed due to the incorporation of carbon nitride to silver stannate. The ac conductivity study showed small polaron tunneling and correlated barrier hopping types of the conduction mechanism for both ASO- and ASO-CN-based devices. A fatigue-free electric field-induced polarization hysteresis loop was observed at ±1 and ±5 kV/mm field conditions for ASO and ASO-CN systems and attained the maximum polarization values of 0.05 and 0.31 μC/cm2, respectively, for 103 cycles. The time-dependent polarization stability was analyzed for 103 s for both the devices. The sustainability of the ASO-CN-based device was higher compared with that of the ASO-based system.

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Improved Capacitive Performance and Polarization Sustainability of Silver Stannate Nanoparticles: The Role of Carbon Nitride Incorporation

Abstract

Keywords

ASJC Scopus subject areas

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