Charge carrier and spin doping in ZnO thin films

Norton, D. P.; Ivill, M.; Li, Y.; Kwon, Younggoo; Erie, J. M.; Kim, H.S.; Ip, K.; Pearton, S. J.; Heo, Young‐Woo; Kim, S.; Kang, B. S.; Ren, F.; Hebard, A. F.; Kelly, John G.

doi:10.1016/j.tsf.2005.08.246

Cited by 40 publications

(22 citation statements)

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“…ZnO crystallizes in three forms: (i) hexagonal, (ii) cubic zinc blende, and (iii) cubic rock salt. Hexagonal (wurtzite) is the main stable crystal structure of ZnO at room temperature [3]. ZnO nanostructures such as nanocrystals, nanorods, nanobelts, nanotubes and especially nanowires are attracting more and more attention due to their vital electronic, optical and magnetic properties as well as unique morphology for both interconnects and functional units in fabricating nanodevices [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Comparative study on zinc oxide nanocrystals synthesized by two precipitation methods

2018

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Zinc oxide nanocrystals were synthesized by two precipitation methods successfully. The nanocrystals prepared via method I (zinc acetate dihydrate precipitation with KOH) were smaller in crystallite size (~20 nm) as compared to method II (zinc nitrate hexahydrate precipitation with N,N-dimethylformamide, ~33 nm). FTIR technique was used to study chemical bonding; SEM and EDS were used to study morphology and chemical compositions. Number of concentric rings corresponding to diffraction peaks was higher in SAED pattern for ZnO nanocrystals synthesized by method I than II. Variation in the energy band gap as a function of particle size was determined using absorption spectra from UV-vis-NIR spectrophotometer. Redshift was observed in the energy band gap of sample prepared via method II. Particle size and the structure of the nanocrystals were analysed by transmission electron microscope (TEM). From TEM study, it was found that the average particle size of method I nanocrystals was smaller compared to method II nanocrystals. Magnetic study was carried out using VSM. Ferromagnetism like contribution was observed for the sample prepared by method II.

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Section: Introductionmentioning

confidence: 99%

Comparative study on zinc oxide nanocrystals synthesized by two precipitation methods

2018

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“…ZnO crystallizes in three forms: hexagonal wurtzite, cubic zinc blende, and the rarely observed cubic rocksalt. Hexagonal wurtzite is the main stable crystal structure of ZnO at room temperature [3]. ZnO has several fundamental advantages over its chief competitor GaN, due to its high energy radiation stability and amenability to wet chemical etching.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ageing in Structural Properties of ZnO Nanoparticles with pH Variation for Application in Solar Cells

Singh¹

2012

TOREJ

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ZnO nanoparticles were synthesized via novel Sol-gel route. The effects of pH variation as well as ageing were studied. The nanoparticles were synthesized with two different pH levels viz. pH 7 and pH 10. It was found that the size of the nanoparticles increased from 19 to 39.6 nm with increase in pH level from 7 to 10. Further the effect of ageing on the ZnO nanoparticles was studied. It was found that the crystallite size as well as the crystallinity of the nanoparticles increased with ageing. The crystallite size increased from 19 to 32.8 nm for pH 7 and from 39.6 to 42 nm for pH 10 with ageing. The intensity of the XRD peaks increased drastically with ageing primarily due to increase in crystallite size of nanoparticles. The nanoparticles were further characterized using TEM. The particle size obtained by TEM was same as crystallite size obtained by XRD. The synthesized ZnO nanoparticles can be used as a suitable material for application in quantum dot sensitized solar cells (QDSSCs).

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“…The ideality factor of about 2 is associated with only one distribution level in the midgap region with identical capture cross-sections for electrons and holes [37]. A high ideality factor has been observed in other nonideal wide band gap p-n junctions, and may be attributable to limited space-charge conduction, deep-level assisted tunneling, or parasitic rectifying junctions within the device [38]. Fig.…”

Section: Photovoltaic Characteristics Of Solar Cellsmentioning

confidence: 94%

The effect of the native silicon dioxide interfacial layer on photovoltaic characteristics of gold/p-type amorphous boron carbon thin film alloy/silicon dioxide/n-type silicon/aluminum solar cells

Chen

Hsueh

Chiou

et al. 2015

Solar Energy Materials and Solar Cells

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Charge carrier and spin doping in ZnO thin films

Cited by 40 publications

References 78 publications

Comparative study on zinc oxide nanocrystals synthesized by two precipitation methods

Comparative study on zinc oxide nanocrystals synthesized by two precipitation methods

Effect of Ageing in Structural Properties of ZnO Nanoparticles with pH Variation for Application in Solar Cells

The effect of the native silicon dioxide interfacial layer on photovoltaic characteristics of gold/p-type amorphous boron carbon thin film alloy/silicon dioxide/n-type silicon/aluminum solar cells

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