Wide range variation of resonance wavelength of GaZnO plasmonic metamaterials grown by molecular beam epitaxy with slight modification of Zn effusion cell temperatures

Cheng, Yung Chen; Wang, Hsiang‐Chen; Lai, Ho Chine; Shi, Shih Chen; Chen, Chi Chung; Yao, Yu; Yang, Chengxu

doi:10.1016/j.jallcom.2021.159434

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…In addition, ZnO is a non-toxic material that is easily accessible at a low price. Consequently, ZnO is widely used in various applications, such as plasmonic metamaterials [1], laser materials [2], ultraviolet light sources [3], solar cell counter-electrodes [4], and transparent conducting oxides (TCOs) [5,6].…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Large-Area Zinc Oxide Coating Prepared by Atmospheric Microplasma-Assisted Ultrasonic Spray Pyrolysis

2021

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Zinc oxide (ZnO) coatings have various unique properties and are often used in applications such as transparent conductive films in photovoltaic systems. This study developed an atmospheric-pressure microplasma-enhanced ultrasonic spray pyrolysis system, which can prepare large-area ZnO coatings at low temperatures under atmospheric-pressure conditions. The addition of an atmospheric-pressure microplasma-assisted process helped improve the preparation of ZnO coatings under atmospheric conditions, compared to using a conventional ultrasonic spray pyrolysis process, effectively reducing the preparation temperature to 350 °C. A program-controlled three-axis platform demonstrated its potential for the large-scale synthesis of ZnO coatings. The X-ray diffraction results showed that the ZnO coatings prepared by ultrasonic spray pyrolysis exhibited (002) preferred growth orientation and had a visible-light penetration rate of more than 80%. After vacuum treatment, the ZnO reached a 1.0 × 10−3 Ωcm resistivity and a transmittance of 82%. The tribology behavior of ZnO showed that the vacuum-annealed coating had a low degree of wear and a low coefficient of friction as the uniformly distributed and dense coating increased its load capacity.

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Section: Introductionmentioning

confidence: 99%

Low-Temperature Large-Area Zinc Oxide Coating Prepared by Atmospheric Microplasma-Assisted Ultrasonic Spray Pyrolysis

2021

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“…[22][23][24] An optimal number of carriers in the MOS film allow noticeable variation in resistance after gas injection. 25 Amorphous oxide semiconductors (AOSs), such as amorphous InZnO (a-IZO), 26 amorphous GaZnO (a-GZO), 27 amorphous ZnSnO (a-ZTO) 28 and amorphous InGaZnO (a-IGZO), 29 are used for a wide range of applications in electronics and optoelectronic devices because they feature high visible transparency, high carrier mobility, low cost and low processing temperature. 30,31 The most common AOS is a-IGZO.…”

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confidence: 99%

Increasing the Gas Response of Ozone Sensors Based on Solution-Processed InGaZnO by Tuning the Size of the Nanostructure

Lin

Huang

2022

ECS J. Solid State Sci. Technol.

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This study uses acetylacetone (acac) as an additive to control the size of the nanostructure of solution-processed a-IGZO for ozone (O3) gas sensor applications. It is found that by adding acac, the gas response, response time, and recovery time of an IGZO gas sensor are highly improved. Under the optimal condition (4 wt%), the IGZO sensor shows a gas response of 19 and a response/recovery time of 80/120 s, against 5 ppm O3. Adding acac significantly increases the number of oxygen vacancies within an a-IGZO film so more electrons are available for reaction with the gas. The increased number of oxygen vacancies means that more dangling bonds are created, which activates the gas adsorption process. Moreover, the IGZO gas sensor has an excellent long-term stability showing negligible variation in gas response over 2 months. This method allows easy fabrication of a high-performance gas sensor that uses solution-processed a-IGZO as a sensing layer.

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Metal oxides for plasmonic applications

Chauhan,

Vashisht,

Gupta

et al. 2024

Metal Oxides for Next-Generation Optoelectronic, Photonic, and Photovoltaic Applications

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Wide range variation of resonance wavelength of GaZnO plasmonic metamaterials grown by molecular beam epitaxy with slight modification of Zn effusion cell temperatures

Cited by 6 publications

References 29 publications

Low-Temperature Large-Area Zinc Oxide Coating Prepared by Atmospheric Microplasma-Assisted Ultrasonic Spray Pyrolysis

Low-Temperature Large-Area Zinc Oxide Coating Prepared by Atmospheric Microplasma-Assisted Ultrasonic Spray Pyrolysis

Increasing the Gas Response of Ozone Sensors Based on Solution-Processed InGaZnO by Tuning the Size of the Nanostructure

Metal oxides for plasmonic applications

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