ZnO flowers made up of thin nanosheets and their optical properties

Pan, Anlian; Yu, Richeng; Xie, Sishen; Zhang, Zebo; Chen, Jin; Zou, B. S.

doi:10.1016/j.jcrysgro.2005.05.003

Cited by 131 publications

(68 citation statements)

References 31 publications

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“…But in our research, solvent was 90% methanol with only 10% H 2 O, meaning less hydroxyl groups would appear on the surface of ZnO nuclei compared with in aqueous solution. The research of Pan et al [24] indicated that less hydroxyl groups on the surface of ZnO nuclei would increase the packing probability of ZnO nuclei in the direction including c-axis, making only one direction with OH restricted during growth. Therefore, ZnO nuclei on the ZnO nanostructures grew into intertwined nanosheets covered all over the surface, as shown in Fig.…”

Section: Zno Nanostructures Preparationmentioning

confidence: 99%

Fabrication of Zinc Oxide Nanostructures by Mist Chemical Vapor Deposition

Kawaharamura

et al. 2014

Trans. Mat. Res. Soc. Japan

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ZnO nanostructures with well-controlled growth on silicon substrate were fabricated in a reducing gas ambient following by a novel mist chemical vapor deposition (Mist CVD) treatment. The effects of Mist CVD post-treatment time on the crystal growth, structural properties were investigated. It was found that the morphology of ZnO nanostructures was significantly modified and regrown during Mist CVD post-treatment process. The crystallinity of ZnO nanostructures was remarkably changed after Mist CVD post-treatment due to the huge regrowth of nanostructures. The mechanism of the nanostructures growth in Mist CVD was investigated in detail.

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Section: Zno Nanostructures Preparationmentioning

confidence: 99%

Fabrication of Zinc Oxide Nanostructures by Mist Chemical Vapor Deposition

Kawaharamura

et al. 2014

Trans. Mat. Res. Soc. Japan

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“…On the other hand, ZnO powders shaped with flowers have also been obtained from aqueous precursors with zinc sulfate 12) or nitrate 13), 14) at low temperatures. The precursors of zinc nitrate with hexamethylenetetramine (HMT) can be also used to make oriented ZnO films, when the seed layers, which were fabricated from zinc acetate by the sol-gel method, were coated on the substrate.…”

Section: )mentioning

confidence: 99%

Effect of the surface of a silicon substrate on the growth of ZnO films by a wet process

Segawa

Izumi

Hayashi

et al. 2009

J. Ceram. Soc. Japan

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Effects of a silicon substrate on growth of ZnO in a wet chemical process were investigated. ZnO has been fabricated from base solutions composed of Zn(NO3)2, ammonia and polyethylene glycol at low temperatures by a wet chemical process. When a silicone substrate was immersed in the solution, flower-like ZnO was obtained on the substrate from the solution at pH = 10.4-10.9. In the case without the substrates, Zn(OH)2 powders were obtained from the solution at pH = 10.4-10.9 and ZnO powders, which were not like flowers, were obtained from solution at pH ≤ 7.6.

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“…Different techniques such as vapor-liquid-solid growth, thermal evaporation, thermal decomposition, electrochemical deposition, and solution-phase processes have been introduced to prepare nano-or microscaled ZnO particles with various morphologies over the past decades [3][4][5][6][7][8][9][10]. Many of the previously reported synthetic methods are limited to the formation of the preferred one-dimensional ZnO nanostructure due to its highly anisotropic growth character along the c axis.…”

Section: Introductionmentioning

confidence: 99%

Shape‐controlled synthesis of ZnO architectures

Wang¹,

Song

2007

Cryst. Res. Technol.

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Several ZnO nanoarchitectures have been selectively prepared through hydrothermal method including urchin-shaped, flower-shaped, butterfly-shaped, and cacti-shaped microstructures. The influence of reaction temperature and the concentration of amphiphilic copolymer on the morphologies and shapes of ZnO samples have been studied. The samples were characterized using XRD, TEM, and SEM. It was found that ZnO nanorods or their assemblies were fabricated at higher temperature, whereas ZnO nanosheet architectures were produced at lower temperature. These flower-shaped architectures possess high BET surface area of 27.43 m 2 /g. Room temperature UV-VIS and PL spectra of the as-obtained ZnO nanoarchitectures have been examined.

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ZnO flowers made up of thin nanosheets and their optical properties

Cited by 131 publications

References 31 publications

Fabrication of Zinc Oxide Nanostructures by Mist Chemical Vapor Deposition

Fabrication of Zinc Oxide Nanostructures by Mist Chemical Vapor Deposition

Effect of the surface of a silicon substrate on the growth of ZnO films by a wet process

Shape‐controlled synthesis of ZnO architectures

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