Photoluminescence of ZnO nanoparticles in alumina membrane with ordered pore arrays

Shi, Gang-Yin; Mo, Chimei; Cai, Wei; Zhang, L.D

doi:10.1016/s0038-1098(00)00169-1

Cited by 57 publications

(39 citation statements)

References 7 publications

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“…The discovery of carbon nanotubes by Iijima [12] in 1991 has initiated active research leading to the growth and characterization of one-dimensional nanowires of elemental and compound semiconductors such as Si [13], Ge [14], InP [15], GaAs [16] and ZnO [17][18][19]. Different nanostructures of ZnO have been reported such as nanowires and nanorods [20], nanocombs [21], nanorings [22], nanoloops and nanohelices [23], nanobows [24], nanobelts [25] and nanocages [26].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal growth of ZnO nanostructures

Baruah

Dutta

2009

Science and Technology of Advanced Materials

1,011

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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Section: Introductionmentioning

confidence: 99%

Hydrothermal growth of ZnO nanostructures

Baruah

Dutta

2009

Science and Technology of Advanced Materials

1,011

492

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“…Several reports on the growth and characterization of one-dimensional nanowires of elemental and compound semiconductors such as Si [3], Ge [4], InP [5], GaAs [6] and ZnO [7][8][9] are available in the literature. A wide variety of nanostructures have been reported for ZnO, such as nanowires, nanocombs, nanorings, nanohelices, nanobows, nanobelts and nanocages, which have been successfully synthesized under specific growth conditions [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…The growth technique relies on the innate anisotropy in the crystal structure of ZnO. The ZnO crystal is hexagonal wurtzite and exhibits partial polar characteristics [9] with lattice parameters a = 0.3296 nm and c = 0.52065 nm. The structure of ZnO can be simply described as a series of alternating planes composed of tetrahedrally coordinated O 2− and Zn 2+ arranged along the c-axis.…”

Section: Introductionmentioning

confidence: 99%

Growth of ZnO nanowires on nonwoven polyethylene fibers

Baruah

Thanachayanont

Dutta

2008

Science and Technology of Advanced Materials

121

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We report the growth of ZnO nanowires on nonwoven polyethylene fibers using a simple hydrothermal method at a temperature below the boiling point of water. The ZnO nanowires were grown from seed ZnO nanoparticles affixed onto the fibers. The seed ZnO nanoparticles, with diameters of about 6-7 nm, were synthesized in isopropanol by reducing zinc acetate hydrate with sodium hydroxide. The growth process was carried out in a sealed chemical bath containing an equimolar solution of zinc nitrate hexahydrate and hexamethylene tetramine at a temperature of 95 • C over a period of up to 20 h. The thickness and length of the nanowires can be controlled by using different concentrations of the starting reactants and growth durations. A 0.5 mM chemical bath yielded nanowires with an average diameter of around 50 nm, while a 25 mM bath resulted in wires with a thickness of up to about 1 µm. The length of the wires depends both on the concentration of the precursor solution as well as the growth duration, and in 20 h, nanowires as long as 10 µm can be grown. The nonwoven mesh of polyethylene fibers covered with ZnO nanowires can be used for novel applications such as water treatment by degrading pollutants by photocatalysis. Photocatalysis tests carried out on standard test contaminants revealed that the polyethylene fibers with ZnO nanowires grown on them could accelerate the photocatalytic degradation process by a factor of 3.

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“…[80], template assisted synthesis [81], electrospinning [13] and electrodeposition [82] . All of these methods have their advantages and disadvantages, some working better than others.…”

Section: Methods Of Growing Nanostructuresmentioning

confidence: 99%

“…In the case of nanowires a disc, a few micrometers thick, with a diameter of a couple of millimeters [12], and through which many holes have been made, is used. Figure 5.7 shows a zoomed in image of one such membrane [81]. The product, from Whatman, comes in a thickness of 60 µm and with three di-ameters: 13 mm, 21 mm and 43 mm [12].…”

Section: Template Assisted Synthesismentioning

confidence: 99%

A Zinc Oxide Nanowire Pressure Sensor

Heever¹,

Perold²,

Büttner³

2010

Nanosci Nanotechnol Lett

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Measurement of pressure with zinc oxide (ZnO) nanowires was investigated.ZnO exhibits the piezoelectric effect, generating a voltage when pressure is applied to the material. This relationship between pressure and output voltage was used to make a pressure sensor. A study of the physical and mathematical working of the piezoelectric effect in ZnO nanowires was done. Simulations were conducted by means of specialised software to test the theory.The simulations gave results as the theory had predicted. ZnO nanowires were grown using various methods. Vapour liquid solid (VLS) was found to be the best method to grow uniform and dense arrays of ZnO nanowires. iii

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Photoluminescence of ZnO nanoparticles in alumina membrane with ordered pore arrays

Cited by 57 publications

References 7 publications

Hydrothermal growth of ZnO nanostructures

Hydrothermal growth of ZnO nanostructures

Growth of ZnO nanowires on nonwoven polyethylene fibers

A Zinc Oxide Nanowire Pressure Sensor

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