Tuning of charge carrier density of ZnO nanoparticle films by oxygen plasma treatment

Walther, S.; Polster, Sebastian; Jank, Michael P. M.; Thiem, Heiko; Ryssel, H.; Frey, L.

doi:10.1016/j.apt.2011.01.012

Cited by 21 publications

(14 citation statements)

References 18 publications

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“…Therefore, many efforts have been made to incorporate ZnO NP layers into TFTs. [1][2][3][4][5][6][7] Generally, NP layers have been generated mainly by annealing and plasma treatments to control surface chemistry and crystallinity. However, few reports have addressed the degree of adhesion and mutual binding between individual NPs.…”

Section: Introductionmentioning

confidence: 99%

Effects of Thermal Pressing on ZnO Nanoparticle Layers Deposited by Drop Casting

Yoshida

Shinohara

Itohara

et al. 2016

e-J. Surf. Sci. Nanotech.

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ZnO nanoparticle (NP) layers were formed using a simple drop casting process. Applying thermal pressing clearly improved the surface morphology and electrical properties of the as-deposited ZnO NP layers as well as significantly enhanced the transistor characteristics of the NP layers. The effects of thermal pressing on the film surface properties were evaluated by X-ray photoelectron spectroscopy, Kelvin probe microscopy, and photoluminescence spectroscopy. Results suggest that thermal pressing improved the transistor characteristics by decreasing NP surface defects such as oxygen vacancies.

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Section: Introductionmentioning

confidence: 99%

Effects of Thermal Pressing on ZnO Nanoparticle Layers Deposited by Drop Casting

Yoshida

Shinohara

Itohara

et al. 2016

e-J. Surf. Sci. Nanotech.

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show abstract

“…Hence removal of such additives and simultaneous improvement of interparticle electrical connectivity is required to increase the device performance. Currently, this is achieved by post-processing steps such as thermal annealing at high temperatures (200-400 C), 14 post deposition hydrothermal growth, 15 laser sintering, 16 plasma treatment, 17,18 and mechanical compression. 19 Although beneficial to charge transport, such post-treatment methods are incompatible with large-area and inexpensive temperature sensitive substrate materials such as plastic.…”

mentioning

confidence: 99%

Solution-processed ZnO nanoparticle-based transistors via a room-temperature photochemical conversion process

Lin¹,

Faber²,

Rossbauer³

et al. 2013

Applied Physics Letters

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“…Some researches have shown that the morphology and structure of ZnO play important roles in determining the properties of the obtained material [21–24]. That is because the state, grain size, surface area and amount of surface oxygen species are strongly dependent on the morphology and structure of ZnO that directly determine the final performance of the material.…”

Section: Introductionmentioning

confidence: 99%

Morphology‐photocatalytic properties‐growth mechanism for ZnO nanostructures via microwave‐assisted hydrothermal synthesis

Ma¹,

Bao²,

Zhu³

et al. 2013

Cryst. Res. Technol.

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ZnO nanostructures with various morphologies including rod-like, sheet-like, needle-like and flower-like structures were successfully synthesized via a fast and facile microwave-assisted hydrothermal process. Reaction temperature, reaction time and the addition of NaOH were adjusted to obtain ZnO with different morphologies. Scanning electron microscopy(SEM), transmission electron microscope(TEM), X-ray diffraction (XRD) and ultraviolet spectrophotometer (UV) were used to observe the morphology, crystal structure, ultraviolet absorption and photocatalytic activity of the obtained ZnO. The results indicated that growth rate of ZnO nanostructure along [001] direction was more sensitive to temperature compared with those along [101] and [100] directions. The competition between anionic surfactant and OH − played an important role in the formation of ZnO with various morphologies. Flower-like ZnO had better ultraviolet absorption property and excellent photocatalytic activity than ZnO in the other morphologies. On the basis of the above results, a possible growth mechanism for the formation of ZnO nanostructures with different morphologies was described.

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Tuning of charge carrier density of ZnO nanoparticle films by oxygen plasma treatment

Cited by 21 publications

References 18 publications

Effects of Thermal Pressing on ZnO Nanoparticle Layers Deposited by Drop Casting

Effects of Thermal Pressing on ZnO Nanoparticle Layers Deposited by Drop Casting

Solution-processed ZnO nanoparticle-based transistors via a room-temperature photochemical conversion process

Morphology‐photocatalytic properties‐growth mechanism for ZnO nanostructures via microwave‐assisted hydrothermal synthesis

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