ZnO as a novel photonic material for the UV region

Chen, Yefan; Bagnall, Darren M.; Yao, Takafumi

doi:10.1016/s0921-5107(00)00372-x

Cited by 437 publications

(195 citation statements)

References 9 publications

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“…2 Recently, ZnO has been recommended as an attractive alternative to both sapphire and SiC as substrates for GaN growth. When growing GaN on ͑0001͒ sapphire substrates, one has to cope with a 16% lattice mismatch.…”

Section: G Cantwellmentioning

confidence: 99%

High spatial resolution thermal conductivity of bulk ZnO (0001)

Florescu

Mourokh

Pollak

et al. 2002

Journal of Applied Physics

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We measured high spatial/depth resolution 300 K thermal conductivity κ of the Zn and O surfaces of two bulk n-type ZnO (0001) samples, grown by a vapor-phase transport method, using scanning thermal microscopy (SThM). The thermal investigation was performed in both point-by-point (∼2 μm resolution) and area-scan modes. On the first sample κ=1.16±0.08 (Zn face)/1.10±0.09 (O face) W/cm K while for the second material κ=1.02±0.07 (Zn face)/0.98±0.08 (O face) W/cm K. These are the highest κ values reported on ZnO. A correlation between SThM area-scan readings and surface topography was established by simultaneously performing atomic force microscopy scans. The influence of surface roughness on the effective thermal conductivity (i.e., heat flow) is discussed.

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Section: G Cantwellmentioning

confidence: 99%

High spatial resolution thermal conductivity of bulk ZnO (0001)

Florescu

Mourokh

Pollak

et al. 2002

Journal of Applied Physics

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“…ZnO is transparent to visible light and its conductivity can be increased through doping. ZnO nanostructures have a wide range of high technology applications like surface acoustic wave filters [1], photonic crystals [2], photodetectors [3], light emitting diodes [4], photodiodes [5], gas sensors [6], optical modulator waveguides [7], solar cells [8,9] and varistors [10]. ZnO is also receiving a lot of attention because of its antibacterial property and its bactericidal efficacy has been reported to increase as the particle size decreases [11].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal growth of ZnO nanostructures

Baruah

Dutta

2009

Science and Technology of Advanced Materials

1,019

492

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One-dimensional nanostructures exhibit interesting electronic and optical properties due to their low dimensionality leading to quantum confinement effects. ZnO has received lot of attention as a nanostructured material because of unique properties rendering it suitable for various applications. Amongst the different methods of synthesis of ZnO nanostructures, the hydrothermal method is attractive for its simplicity and environment friendly conditions. This review summarizes the conditions leading to the growth of different ZnO nanostructures using hydrothermal technique. Doping of ZnO nanostructures through hydrothermal method are also highlighted.

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“…ZnO is receiving a great deal of attention recently as a candidate material for short wavelength emitters, in particular due to its large exciton binding energy and the availability of lattice matched substrates which give it substantial advantages over GaNbased devices [1][2][3].…”

Section: I: Introductionmentioning

confidence: 99%

Effect of polycrystallinity on the optical properties of highly oriented ZnO grown by pulsed laser deposition

McGlynn

2004

Thin Solid Films

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We report the results of photoluminescence and reflectance measurements on highly caxis oriented polycrystalline ZnO grown by pulsed laser deposition. The samples measured were grown under identical conditions and were annealed in-situ at various temperatures for 10-15 minutes. The band-edge photoluminescence spectra of the material altered considerably with an increase in grain size, with increased free exciton emission and observable excitonic structure in the reflectance spectra. The green band emission also increased with increasing grain size. A deformation potential analysis of the effect of strain on the exciton energy positions of the A-& B-excitons demonstrated that the experimental exciton energies couldn't be explained solely in terms of sample strain. We propose that electric fields in the samples due to charge trapping at grain boundaries are responsible for the additional perturbation of the excitons. This

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ZnO as a novel photonic material for the UV region

Cited by 437 publications

References 9 publications

High spatial resolution thermal conductivity of bulk ZnO (0001)

High spatial resolution thermal conductivity of bulk ZnO (0001)

Hydrothermal growth of ZnO nanostructures

Effect of polycrystallinity on the optical properties of highly oriented ZnO grown by pulsed laser deposition

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