Preferred orientations of NiO thin films prepared by RF magnetron sputtering

Hasunuma, Ryu; Choi, Gwang-Pyo; Lee, W. S.; Park, J. S.

doi:10.1023/b:jmsc.0000033431.52659.e5

Cited by 59 publications

(18 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nanocrystalline NiO is an important material used in high technological application like smart windows, electrochemical super capacitors and also in dye sensitized photo cathode [4][5][6][7][8][9]. NiO nanoparticles have been prepared by different researchers using various methods such as sol-gel method [10], solvothermal method [11], hydrothermal method [12], chemical method [13], sonochemical method [14], anodic plasma technique [15], microemulsion method [16], and thermal decomposition method [17].…”

Section: Introductionmentioning

confidence: 99%

Studies on cobalt doped NiO nanoparticles prepared by simple chemical method

Ponnusamy¹,

Agilan²,

Muthukumarasamy³

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Nanocrystalline nickel oxide (NiO) and cobalt doped NiO have been prepared successfully by a simple chemical method. NiO and cobalt doped NiO nanoparticles have been characterised using various analytical techniques such as X-ray diffraction, FESEM, HRTEM, UV absorption and M-H curves. The average grain size of NiO nanoparticles and cobalt doped NiO nanoparticles are 12 and 9.5 nm respectively. The UV absorbance study shows a strong absorption peak present between 328 and 363 nm. The band gap values of NiO nanoparticles and cobalt doped NiO nanoparticles are 3.58 and 3.78 eV. The incorporation of cobalt into NiO nanoparticles have strongly influenced the magnetic behaviour and the material got converted from super paramagnetic to ferromagnetic material.

show abstract

Section: Introductionmentioning

confidence: 99%

Studies on cobalt doped NiO nanoparticles prepared by simple chemical method

Ponnusamy¹,

Agilan²,

Muthukumarasamy³

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…Interestingly, α‐Fe 2 O 3 decoration changed the orientation of NiO nanocorals from (111) to (200). According to Ryu et al, NiO films with a (111) orientation have a smooth surface while those with a (200) orientation possess a relatively rough surface, which corresponds to the surface of the NiO nanocorals in this study. The rough surface of the decorated NiO nanocorals induces a difference in current path compared to the smooth surface of the bare NiO nanorods.…”

Section: Resultsmentioning

confidence: 50%

“…In other words, compared with the Ni atoms in bare NiO nanorods, those in the α‐Fe 2 O 3 ‐decorated NiO nanocorals interacted less with O 2 due to the adjacent Fe atoms during annealing. In addition, Ryu et al reported that differences in the partial pressure of O 2 when sputtering the NiO target can yield different orientations of the deposited NiO film. The NiO thin films showed a (111) orientation at 100% O 2 gas, since the (111) plane is the most densely packed plane for O 2− .…”

Section: Resultsmentioning

confidence: 99%

Synergetically Selective Toluene Sensing in Hematite‐Decorated Nickel Oxide Nanocorals

Suh

Shim

Kim

et al. 2017

Adv Materials Technologies

View full text Add to dashboard Cite

The decoration of p‐type nickel oxide (NiO) with n‐type hematite (α‐Fe2O3) to achieve vertically ordered 1D nanostructures is an attractive strategy to enhance gas sensing properties. Herein, the authors report a facile method for α‐Fe2O3 decoration of the whole surface of vertical NiO nanorods. An NiO/Fe heterostructure is deposited in multiple steps using a glancing angle deposition method, which is followed by the oxidation of Fe into α‐Fe2O3. Thermally agglomerated α‐Fe2O3 nanoparticles are uniformly distributed on the whole surface of the NiO nanorods. Due to the α‐Fe2O3 decoration, the NiO nanorods exhibit a coral‐like rough surface and, more interestingly, their preferential crystallographic orientation changed from (111) to (200). Compared to bare NiO nanorods, the α‐Fe2O3‐decorated NiO nanocorals exhibit a 45.4 times higher response to 50 ppm toluene (C7H8) at 350 °C. Their theoretical detection limit for C7H8 is calculated to be ≈22 ppb. The observed unprecedented synergetic effects of α‐Fe2O3‐decorated NiO nanocorals for the extremely selective C7H8 sensing, as well as their facile synthetic route, establish a new perspective on heterostructured metal oxide 1D nanostructures for selective gas sensing.

show abstract

“…These methods can be either physical or chemical in the form of powders or thin layers (on an appropriate substrate). Metal oxide chemical bath deposited thin films composed of nanoparticles such as ZnO, SnO 2 , Fe 2 O 3 , In 2 O 3 , TiO 2 etc., are attractive for the development of gas sensing devices owing to their obvious advantages such as low production-cost as well as conservable thermal and chemical stabilities [2][3][4][5][6][7][8][9][10][11][12][13]. In addition, transition metal oxide nanostructures with altered surface morphologies can be excellent for the manufacture of the gas sensor devices.…”

Section: Introductionmentioning

confidence: 99%

Solution-processed nickel oxide films and their liquefied petroleum gas sensing activity

Mutkule

Navale

Jadhav

et al. 2017

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Present article demonstrates the facial synthesis of nickel oxide (NiO) films via an easy and costeffective successive ionic layer adsorption and reaction (SILAR) method onto glass substrate using nickel (II) chloride as precursor and their gas sensing activity towards different target gases. Structural elucidation and elemental composition analysis measurements were conducted using X-ray diffraction, Raman and energy dispersive X-ray techniques, respectively. Platelettype morphology was confirmed from the plane-view images recorded on field-emission scanning electron and transmission electron microscopes at different magnifications. Chemoresistive performance of NiO films was carried out towards hazardous and explosive gases such as ammonia, methanol, ethanol, liquefied petroleum gas (LPG) and nitrogen dioxide as a function of working temperature and gas concentration. Amongst diverse gases, NiO sensor film

show abstract

Preferred orientations of NiO thin films prepared by RF magnetron sputtering

Cited by 59 publications

References 9 publications

Studies on cobalt doped NiO nanoparticles prepared by simple chemical method

Studies on cobalt doped NiO nanoparticles prepared by simple chemical method

Synergetically Selective Toluene Sensing in Hematite‐Decorated Nickel Oxide Nanocorals

Solution-processed nickel oxide films and their liquefied petroleum gas sensing activity

Contact Info

Product

Resources

About