Growth mechanism and characterization of ZnO microbelts and self-assembled microcombs

Chen, Y.Q.; Jiang, Jin He; He, Zhaoyuan; Su, Yong; Cai, Dong; Chen, L.

doi:10.1016/j.matlet.2005.05.059

Cited by 57 publications

(30 citation statements)

References 21 publications

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“…Because of the fact that the NCs can only be formed at lower temperature region, we may speculate the NCs formation procedure as follows: (1) the nucleation and growth along [2110] forms the comb-stems [25]; (2) slower growth along [0001] direction by a faceted epitaxial growth process creates the comb-teeth [26]. Possibly, it is related to the supersaturated environments, a great deal of Zn vapor exists in the reaction chamber, which reacts with O 2 to form ZnNiO or ZnO nucleation.…”

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confidence: 99%

Ni-doped zinc oxide nanocombs and phonon spectra properties

Zhang

Gong

et al. 2008

Physics Letters A

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confidence: 99%

Ni-doped zinc oxide nanocombs and phonon spectra properties

Zhang

Gong

et al. 2008

Physics Letters A

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“…Generally, there have been several reports with strong ultraviolet and weak defect emission in ZnO nanostructures. 39 However, in some cases, only defect emission is observed 40 or the ultraviolet emission is much weaker when compared to the defect emission. 41 The intensity ratio of ultraviolet to defect emission is dependent on the excitation density and area rather than absolute crystalline quality.…”

Section: Resultsmentioning

confidence: 99%

Enhanced visible photoluminescence emission from multiple face-contact-junction ZnO nanorods coated with graphene oxide sheets

Ding

Wang

2014

Journal of Applied Physics

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Multiple face-contact-junction ZnO nanorods (MFCJ ZnO NRs) coated with graphene oxide (GO) sheets have been realized on indium tin oxide substrates. The coated amount and thickness of GO on MFCJ ZnO NRs can be adjusted by electrodeposition time. Photoluminescence (PL) properties of MFCJ ZnO NRs coated with GO sheets are measured and found to be strongly depended on the electrodeposition time of GO sheets. The strongest visible PL emission with the appropriate GO electrodeposition time is observed. We proposed that, in this case, the surface of MFCJ ZnO NRs is coated by very thin GO sheets with ionized oxygen functional species that trap conduction electrons, causing ZnO energy band bending at the surface, which accumulates the surface charges within a very thin surface layer. The charges in surface layer transition to impurities levels cause an enhanced visible PL emission in MFCJ ZnO NRs. V C 2014 AIP Publishing LLC.

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“…Ma et al [26] explained the growth processes of wurtzite CdSe "forming nanoribbons first, teeth growing then". We suggest that the growth process can be divided into two stages: firstly there form the NC-stems {forming nucleation and growing in [2 1 10] direction}, and then the NC-teeth are created (slower growth in [0001] direction by a faceted epitaxial growth process) [27] . The detailed growth process of Fe-doped ZnO NC is illustrated by SEM images (Figure 4).…”

Section: Resultsmentioning

confidence: 99%