Development of Zn1-x-yGaxCoyO1-zNz as a non-oxide semiconductor material with visible light photoelectrochemical activity

Sumithra Sivadas Menon; Gopal Bhalerao; Bhavana Gupta; K. Baskar; Shubra Singh

doi:10.1016/j.vacuum.2018.05.023

Development of Zn_1-x-yGa_xCo_yO_1-zN_z as a non-oxide semiconductor material with visible light photoelectrochemical activity

Sumithra Sivadas Menon
, Gopal Bhalerao
, Bhavana Gupta
, K. Baskar
, Shubra Singh

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

2 Scopus citations

Abstract

The recognition of photocatalysis as a promising approach for green energy generation and environmental pollution degradation has resulted in the emergence of a large number of semiconductor materials as photocatalyst. Here we introduce a non-oxide compound, Zn_1-x-yGa_xCo_yO_1-zN_z oxynitride synthesized by solution combustion technique for application as visible light photocatalyst. The structural, microstructural, spectroscopic and photoelectrochemical studies of the samples are demonstrated. The wurtzite structured sample possessed bandgap of 2.76 eV allowing absorption in visible region of spectra which is explained using Valence Band XPS studies. The photoelectrochemical studies on the samples revealed a photo-anodic behavior with total half-life of trap states significantly reduced compared to some conventional photocatalyst materials.

Original language	English
Pages (from-to)	296-301
Number of pages	6
Journal	Vacuum
Volume	154
DOIs	https://doi.org/10.1016/j.vacuum.2018.05.023
State	Published - 1 Aug 2018
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Oxynitrides
Photocatalyst
Photoelectrochemical cell
Solution combustion

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

Access to Document

10.1016/j.vacuum.2018.05.023

Cite this

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title = "Development of Zn1-x-yGaxCoyO1-zNz as a non-oxide semiconductor material with visible light photoelectrochemical activity",

abstract = "The recognition of photocatalysis as a promising approach for green energy generation and environmental pollution degradation has resulted in the emergence of a large number of semiconductor materials as photocatalyst. Here we introduce a non-oxide compound, Zn1-x-yGaxCoyO1-zNz oxynitride synthesized by solution combustion technique for application as visible light photocatalyst. The structural, microstructural, spectroscopic and photoelectrochemical studies of the samples are demonstrated. The wurtzite structured sample possessed bandgap of 2.76 eV allowing absorption in visible region of spectra which is explained using Valence Band XPS studies. The photoelectrochemical studies on the samples revealed a photo-anodic behavior with total half-life of trap states significantly reduced compared to some conventional photocatalyst materials.",

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AU - Menon, Sumithra Sivadas

AU - Bhalerao, Gopal

AU - Gupta, Bhavana

AU - Baskar, K.

AU - Singh, Shubra

PY - 2018/8/1

Y1 - 2018/8/1

N2 - The recognition of photocatalysis as a promising approach for green energy generation and environmental pollution degradation has resulted in the emergence of a large number of semiconductor materials as photocatalyst. Here we introduce a non-oxide compound, Zn1-x-yGaxCoyO1-zNz oxynitride synthesized by solution combustion technique for application as visible light photocatalyst. The structural, microstructural, spectroscopic and photoelectrochemical studies of the samples are demonstrated. The wurtzite structured sample possessed bandgap of 2.76 eV allowing absorption in visible region of spectra which is explained using Valence Band XPS studies. The photoelectrochemical studies on the samples revealed a photo-anodic behavior with total half-life of trap states significantly reduced compared to some conventional photocatalyst materials.

AB - The recognition of photocatalysis as a promising approach for green energy generation and environmental pollution degradation has resulted in the emergence of a large number of semiconductor materials as photocatalyst. Here we introduce a non-oxide compound, Zn1-x-yGaxCoyO1-zNz oxynitride synthesized by solution combustion technique for application as visible light photocatalyst. The structural, microstructural, spectroscopic and photoelectrochemical studies of the samples are demonstrated. The wurtzite structured sample possessed bandgap of 2.76 eV allowing absorption in visible region of spectra which is explained using Valence Band XPS studies. The photoelectrochemical studies on the samples revealed a photo-anodic behavior with total half-life of trap states significantly reduced compared to some conventional photocatalyst materials.

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KW - Photocatalyst

KW - Photoelectrochemical cell

KW - Solution combustion

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