Hydrothermal synthesis of zinc oxide powders with controllable morphology

Xu, Haiyan; Wang, Hao; Zhang, Yongcai; He, Wentao; Zhu, Mankang; Wang, Bo; Yan, Hui

doi:10.1016/s0272-8842(03)00069-5

Cited by 180 publications

(81 citation statements)

References 15 publications

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“…These have been produced using a number of growth methods including chemical bath deposition (CBD), vapour phase transport, chemical vapour deposition (CVD) and hydrothermal deposition. [2,3,5,[10][11][12][13] Furthermore, isotopic enrichment is a very useful technique in the study of crystal structure and impurities in semiconductor materials such as ZnO, and comparable materials including Si, GaN and GaP, particularly using optical methods. [14][15][16][17][18][19] Reports using isotopically enriched ZnO samples have included studies of bandgap energies, phonon positions and linewidths and heat capacity, but in all cases using bulk single crystal samples with quite poor optical quality.…”

Section: Introductionmentioning

confidence: 99%

Growth of isotopically enriched ZnO nanorods of excellent optical quality

Gray

Cullen

Byrne

et al. 2015

Journal of Crystal Growth

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We have produced isotopically enriched ZnO nanorods using Zn-enriched ZnO source powder by vapour phase transport on silicon substrates buffer-coated with unenriched ZnO seed layers. SEM and XRD data confirm successful growth of high quality, dense, c-axis aligned nanorods over a substantial surface area. Raman data show a shift of >1 cm -1 in the peak position of the Raman scattered peaks due to the E 2 low and E 2 high phonon modes when the Zn isotope is changed from 64 Zn to 68 Zn, consistent with previous work, thus confirming successful isotopic enrichment. SIMS data provides additional confirmation of enrichment.The optical quality (as determined by photoluminescence feature intensity and linewidth) is excellent. Samples with Zn isotopic enrichment ranging from 64 ZnO to 68 ZnO display a shift in recombination energy of the bound excitons at the band edge (3.34 -3.37 eV) of ~ 0.6 meV. This blue shift is also consistent with previously published data, further confirming *Manuscript Revised Click here to view linked References 2 both the excellent optical quality and successful isotopic substitution of ZnO nanorods using this relatively simple growth method.

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Section: Introductionmentioning

confidence: 99%

Growth of isotopically enriched ZnO nanorods of excellent optical quality

Gray

Cullen

Byrne

et al. 2015

Journal of Crystal Growth

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“…Among various semiconductor nanoparticles, nanosized zinc oxide (ZnO) particles are the most frequently studied because of their interest in fundamental study and also their applied aspects such as in solar energy conversion, varistors, luminescence, photocatalysis, electrostatic dissipative coating, transparent UV protection films, and chemical sensors. Previously, ZnO nanoparticles have been prepared by techniques including the sol-gel method [4,5], precipitation [6], hydrothermal synthesis [7], and spray pyrolysis [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Chitosan/Zinc Oxide Nanoparticles for Imparting Antimicrobial and UV Protection to Cotton Fabric

Abdel‐Hady

2012

International Journal of Carbohydrate Chemistry

270

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Synthesis of chitosan/ZnO nanoparticles was performed using different concentrations of ZnO at different temperatures. Nanoparticles of ZnO/chitosan were prepared in rod form with average length 60 nm and average width 5-15 nm. Thus, obtained nanoparticles of ZnO/chitosan were characterized using UV spectrophotometer, FTIR, TEM, X-ray, and SEM. Size and shape of chitosan/ZnO nanoparticles relied on conditions of their synthesis. Notably, chitosan/ZnO in rod form with average length of 60 nm and average width 5-15 nm could be achieved. Application of chitosan/ZnO nanoparticles to cotton fabric conferred on the latter antibacterial and UV protection properties. Cotton fabric was characterized using SEM, ultraviolet protection factor (UPF) rating, and antibacterial (gram-positive and gram-negative) characteristics. Finished cotton fabric exhibited good antibacterial properties against gram-positive and gram-negative bacteria. The UV testes indicated a significant improvement in UV protection of finished cotton fabric which is increasing by increasing the concentration of nanoparticles of ZnO/chitosan.

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“…Nanocrystalline ZnO is widely used in many applications such as blue light emitting diodes (Tsukazaki et al, 2005), photo detectors (Jun et al, 2009), gas sensors (Xu et al, 2000), photocatalysts (Hariharan, 2006), and field-effect transistors (Arnold et al, 2003). Various a b chemical methods have been successfully used for synthesizing nanostructured ZnO material, such as hydrothermal (Xu et al, 2004), sol-gel processing (Ristic et al 2005;Li et al, 2005), chemical bath deposition and sonochamical synthesis (Kandjani et al, 2008).…”

Section: Zinc Oxidementioning

confidence: 99%