Surface photovoltage response of zinc oxide microrods on prismatic planes: effect of UV, temperature and oxygen ambience

Urs, Kusuma M. B.; Kamble, Vinayak B.

doi:10.1007/s10854-021-05359-x

Cited by 6 publications

(2 citation statements)

References 43 publications

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“…Sharp and narrow (002) peaks are dominant, indicating that highly crystalline ZNWs grow along the c -axis of the wurtzite ZnO crystal . The (100) peak that emerges from the hexagonal side facets , is vivid, especially in the 80 °C-grown SPAZN, as confirmed in the SEM image (Figure a). It is noteworthy that the ratio of the (002) peak intensity to the (100) peak intensity ( I (002) / I (100) ) can be an indicator of the aspect ratio of the ZNWs; the higher the ratio, the higher the ZNW aspect ratio.…”

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confidence: 58%

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

Choi

Kim

et al. 2022

ACS Appl. Electron. Mater.

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We present a scalable and vacuum-free hybrid nanoarchitecturing strategy demonstrated by the solution-processable Ag-mediated ZnO nanowire (termed "SPAZN") growth on transparent and flexible substrates at low temperature. The SPAZN protocol enables selective hydrothermal ZnO nanowire (ZNW) growth on a nanoporous Ag framework obtainable from mild annealing of ionic Ag ink coating. The ZNW morphology and density can be readily controlled by tuning the SPAZN processing parameters including Ag ink concentration, coating condition, and hydrothermal growth temperature based on the underpinnings of the Ag-morphology-mediated ZNW growth mechanism proposed. We exemplify a transparent plastic gas sensor as one of many promising applications.

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confidence: 58%

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

Choi

Kim

et al. 2022

ACS Appl. Electron. Mater.

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“…Any new response band in the SPV diagram is equal to the surface state population transition created by new dopants on the surface of the photocatalyst. 278 Urs and Kamble 279 evaluated three variables of SPV measurements including temperature, oxygen amounts, and a photon energy of a UV laser to report the accumulation density of charge carriers on the surface of the photocatalyst. The SPV response is considered a time analysis of work function measurements of photocatalysts under light irradiation and photoexcitation.…”

Section: Mechanism Of Photocatalytic Degradation Of Water-soluble And...mentioning

confidence: 99%

A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO₂-Based Photocatalysts for Photodegradation of Contaminants

Ghamarpoor,

Fallah,

Jamshidi

2024

ACS Omega

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The environment being surrounded by accumulated durable waste organic compounds has become a critical crisis for human societies. Generally, organic effluents of industrial plants released into the water source and air are removed by some physical and chemical processes. Utilizing photocatalysts as cost-effective, accessible, thermally/ mechanically stable, nontoxic, reusable, and powerful UV-absorber compounds creates a new gateway toward the removal of dissolved, suspended, and gaseous pollutants even in trace amounts. TiO 2 and ZnO are two prevalent photocatalysts in the field of removing contaminants from wastewater and air. Structural modification of the photocatalysts with metals, nonmetals, metal ions, and other semiconductors reduces the band gap energy and agglomeration and increases the affinity toward organic compounds in the composite structures to expand their usability on an industrial scale. This increases the extent of light absorbance and improves the photocatalytic efficiency. Selecting a suitable synthesis method is necessary to prepare a target photocatalyst with distinct properties such as high specific surface area, numerous surface functional groups, and an appropriate crystalline phase. In this Review, significant parameters for the synthesis and modification of TiO 2 -and ZnO-based photocatalysts are discussed in detail. Several proposed mechanistic routes according to photocatalytic composite structures are provided. Some electrochemical analyses using charge carrier trapping agents and delayed recombination help to plot mechanistic routes according to the direction of photoexcited species (electron−hole pairs) and design more effective photocatalytic processes in terms of cost-effective photocatalysts, saving time and increasing productivity.

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Role of annealing environments on the local electronic and optical properties of zinc oxide films

Motla,

Kumaravelu,

Dong

et al. 2024

J Mater Sci: Mater Electron

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Surface photovoltage response of zinc oxide microrods on prismatic planes: effect of UV, temperature and oxygen ambience

Cited by 6 publications

References 43 publications

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO₂-Based Photocatalysts for Photodegradation of Contaminants

Role of annealing environments on the local electronic and optical properties of zinc oxide films

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Surface photovoltage response of zinc oxide microrods on prismatic planes: effect of UV, temperature and oxygen ambience

Cited by 6 publications

References 43 publications

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

Solution-Processable Ag-Mediated ZnO Nanowires for Scalable Low-Temperature Fabrication of Flexible Devices

A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO2-Based Photocatalysts for Photodegradation of Contaminants

Role of annealing environments on the local electronic and optical properties of zinc oxide films

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A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO₂-Based Photocatalysts for Photodegradation of Contaminants