A Study on Structure/Phase Transformation of TiO<sub>2</sub> nanorods at Various Annealing Temperatures

Wahyuningsih, Sayekti; Ramelan, Ari Handono; Saputri, L N M Z

doi:10.1088/1755-1315/75/1/012002

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The J-V curves for stoichiometric TiO 2 -NT diodes in figure 5(a) yields an ideality factor of 3.7 and 2.0 before and after annealing at 350 °C, respectively. Thermal treatment at 400 °C presented a reduction in rectification ratio by an order of magnitude which may be attributed to phase changes into rutile form at this temperature [36]. The rectification ratio, I F /I R , for the as-deposited, 350 °C, and 400 °C in stoichiometric samples was found to be 1015, 3294, and 552, respectively.…”

Section: Resultsmentioning

confidence: 87%

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing

Michaels

Kwon

2021

Nanotechnology

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An ordered, crack-free array of anatase TiO2 nanotubes were prepared via anodization and annealing at 550 °C. Oxygen vacancies are known to improve photocatalytic activity in TiO2 and were introduced using a facile low vacuum annealing. Stoichiometric and nonstoichiometric films were followed by a conformal Pt deposition at 250 °C using atomic layer deposition resulting in a current rectifying device, or Schottky diode. Here, we investigated the current–voltage effects of a post thermal treatment using 350 °C and 400 °C. This paper presents reproducible improvements in the charge transport behavior after a 350 °C post-fabrication annealing process. Oxygen vacancies resulted in the formation of a shunt resistance behavior of 105 Ω and no overall performance improvements compared to stoichiometric films. Additionally, thermal treatments offered trap-based shifts from multiple trap distributions to a single trap distribution. This work hereby provides valuable experimental observations into understanding the effects of oxygen vacancies and effectively modifying the electronic properties of a conformal Pt/TiO2−x nanostructured junction using a facile post-thermal treatment.

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Section: Resultsmentioning

confidence: 87%

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing

Michaels

Kwon

2021

Nanotechnology

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Core/shell structured Ti/Si/C composite for high-performance zinc-ion hybrid capacitor

Dymerska

Środa

Zielińska

et al. 2023

Journal of Alloys and Compounds

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CdTe nanoparticles encapsulation in mesoporous titania-silica nanocomposite for phenol red pH sensing

Alamer,

Islam,

Alshoaibi

et al. 2024

Optical Materials

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A Study on Structure/Phase Transformation of TiO₂ nanorods at Various Annealing Temperatures

Cited by 3 publications

References 11 publications

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing

Core/shell structured Ti/Si/C composite for high-performance zinc-ion hybrid capacitor

CdTe nanoparticles encapsulation in mesoporous titania-silica nanocomposite for phenol red pH sensing

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A Study on Structure/Phase Transformation of TiO2 nanorods at Various Annealing Temperatures

Cited by 3 publications

References 11 publications

Modification of charge transport in nanostructured TiO2−x Schottky diodes via post fabrication annealing

Modification of charge transport in nanostructured TiO2−x Schottky diodes via post fabrication annealing

Core/shell structured Ti/Si/C composite for high-performance zinc-ion hybrid capacitor

CdTe nanoparticles encapsulation in mesoporous titania-silica nanocomposite for phenol red pH sensing

Contact Info

Product

Resources

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A Study on Structure/Phase Transformation of TiO₂ nanorods at Various Annealing Temperatures

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing

Modification of charge transport in nanostructured TiO_2−x Schottky diodes via post fabrication annealing