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Advances in the Synthesis and Characterization of ZnO Particles

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Materials Characterization".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1249

Special Issue Editor


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Guest Editor
Division of Materials Physics, Centre of Excellence for Advanced Materials and Sensing Device, Ruđer Bošković Institute, Bijenička cesta 54, 10002 Zagreb, Croatia
Interests: materials science; ZnO nanoparticle synthesis and characterization; integrated experimental DFT research
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Special Issue Information

Dear Colleagues,

Zinc oxide has attracted worldwide research interest due to its low cost and toxicity, biocompatibility, and high efficiency in the heterogeneous photocatalytic reaction of organic pollutants. For highly technical, biomedical or photocatalytic applications, developing a size- and morphology-controlled ZnO synthesis route is of the utmost importance due to the fact that the multifunctional behavior of ZnO particles is related to their size and morphology. The multifunctional behavior of ZnO particles is partly determined by the electronic structure, which depends on the size, shape, and crystallographic facets of the particle surfaces.

This Special Issue, “Advances in the Synthesis and Characterization of ZnO Particles”, will provide readers with up-to-date information on recent progress in the field of ZnO research, particularly advances in synthesis and detailed microstructural, optical, and photocatalytic measurements.

I particularly encourage contributions on the combination of experimental and theoretical studies in order to gain deeper insight into the growth mechanism and photocatalytic behavior of ZnO nano- and microstructures and achieve good control of their size and morphology.

Dr. Ankica Šarić
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ZnO nanoparticles
  • X-ray diffraction
  • FE SEM/TEM microscopy
  • density functional calculations (DFT)
  • photocatalytic efficiency
  • optical properties
  • crystal growth

Published Papers (1 paper)

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Research

13 pages, 3142 KiB  
Article
Low-Power Phototransistor with Enhanced Visible-Light Photoresponse and Electrical Performances Using an IGZO/IZO Heterostructure
by Yu Bin Kim, Jun Hyung Jeong, Min Ho Park, Jung Min Yun, Jin Hyun Ma, Hyoun Ji Ha, Seong Jae Kang and Seong Jun Kang
Materials 2024, 17(3), 677; https://doi.org/10.3390/ma17030677 - 30 Jan 2024
Viewed by 1022
Abstract
In this study, we demonstrated the effective separation of charge carriers within the IGZO/IZO heterostructure by incorporating IZO. We have chosen IGZO for its high mobility and excellent on–off switching behavior in the front channel of our oxide–oxide heterostructure. Similarly, for an additional [...] Read more.
In this study, we demonstrated the effective separation of charge carriers within the IGZO/IZO heterostructure by incorporating IZO. We have chosen IGZO for its high mobility and excellent on–off switching behavior in the front channel of our oxide–oxide heterostructure. Similarly, for an additional oxide layer, we have selected IZO due to its outstanding electrical properties. The optimized optoelectronic characteristics of the IGZO/IZO phototransistors were identified by adjusting the ratio of In:Zn in the IZO layer. As a result, the most remarkable traits were observed at the ratio of In:Zn = 8:2. Compared to the IGZO single-layer phototransistor, the IGZO/IZO(8:2) phototransistor showed improved photoresponse characteristics, with photosensitivity and photoresponsivity values of 1.00 × 107 and 89.1 AW−1, respectively, under visible light wavelength illumination. Moreover, the electrical characteristics of the IGZO/IZO(8:2) transistor, such as field effect mobility (μsat) and current on/off ratio (Ion/Ioff), were highly enhanced compared to the IGZO transistor. The μsat and Ion/Ioff were increased by about 2.1 times and 2.3 times, respectively, compared to the IGZO transistor. This work provides an approach for fabricating visible-light phototransistors with elevated optoelectronic properties and low power consumption based on an oxide–oxide heterostructure. The phototransistor with improved performance can be applied to applications such as color-selective visible-light image sensors and biometric sensors interacting with human–machine interfaces. Full article
(This article belongs to the Special Issue Advances in the Synthesis and Characterization of ZnO Particles)
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