Combined influence of titania and silica precursors on the properties of thin film humidity sensing elements prepared via a sol–gel method

Nenova, Zvezditza; Kozhukharov, S.; Nenov, Toshko; Nedev, Nedyu; Machkova, М.

doi:10.1016/j.snb.2015.10.010

Cited by 15 publications

(4 citation statements)

References 54 publications

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“…There are a large number of unsaturated bonds and hydroxyl groups on the surface of nano-SiO 2 particles, resulting in sufficient water absorbing capacity [15][16][17]. Typically, silica was used as one of basic materials for humidity sensors [18][19][20]. Basing on the above, it is interesting to see if nano-SiO 2 particles can be introduced into STO thin films to enhance the breakdown strength by improving the efficiency of the anodic oxidation through providing sufficient OH -/O 2anions.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Yao

et al. 2017

Ceramics International

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Dielectric (1-x)SrTiO 3 /xSiO 2 (x=0, 0.01, 0.05 and 0.1) composite thin films were deposited onto Pt (100)/Ti/SiO 2 /Si substrates via sol-gel and spin coating technology and their surface morphology was examined by field emission scanning electron microscopy, indicating that surface morphology was apparently influenced by the nano-SiO 2 addition. A broad adsorption band at 3200-3500 cm-1 attributed to stretching vibrations of O-H bonds in the absorbed water was observed in fourier transform infrared spectroscopy (FTIR). The X-ray photoelectron spectroscopy (XPS) results show that nano-SiO 2 particles facilitate water absorption of STO thin films. The breakdown strength of SrTiO 3 /nano-SiO 2 composite films is increased to about 332 MV/m. At the same time, the leakage current of 0.9SrTiO 3 /0.1SiO 2 composite thin films decreases by two orders of magnitude under high electric field. Above results show that nano-SiO 2 particles facilitate water absorption of the thin films, making SrTiO 3 act as an effective solid state electrolyte for the anodic oxidation to achieve higher breakdown strength.

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Section: Introductionmentioning

confidence: 99%

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Yao

et al. 2017

Ceramics International

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“…Nevertheless, the coexistence of both oxides could result in conjunction with interesting optical and electric properties. This approach was further enhanced, leading to the development of sol-gelderived CeO 2 -TiO 2 -SiO 2 humidity sensors with remarkable properties [238,239]. The introduction of CeO 2 nanoparticles into a polymer matrix is also employed for the development of advanced biosensors [240,241].…”

Section: Schematic Illustration Of Sensor Element Characteristicsmentioning

confidence: 99%

Innovative Applications of Cerium Oxide-Based Materials in Civil Engineering, Automation, and Energy Sectors

Kozhukharov,

Girginov,

Lilova

et al. 2024

Cerium - Chemistry, Technology, Geology, Soil Science and Economics

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Cerium oxide materials exhibit remarkable properties, positioning them as highly effective, environmentally friendly solutions across diverse applications. This chapter provides a comprehensive overview of fundamental concepts and technological methodologies related to cerium oxide (CeO2) and doped ceria-based materials. Emphasis is placed on electrochemical deposition, spray pyrolysis, and the sol-gel approach for synthesizing thin and thick layers of ceria. The versatility of these materials is explored, spanning from corrosion protection layers and specialized ceramic elements for sensor applications to components for solid oxide fuel cells (SOFCs) and electrodes for water-splitting cells. Additionally, the chapter delves into the promising applications of recently developed ceria-based nanomaterials in various fields, marking some advanced methods for CeO2-based materials synthesis. The key findings are succinctly summarized in the concluding section.

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“…Hence the highest reduction in transmitted power is obtained, as most of the power could not reach the detector and is scattered in the surroundings. [41][42][43] The whole sensing mechanism has been explained by ray diagram in Fig. 7(a).…”

Section: Sensing Mechanismmentioning

confidence: 99%

Synthesis and characterization of nanostructured MnO₂–CoO and its relevance as an opto-electronic humidity sensing device

et al. 2018

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Combined influence of titania and silica precursors on the properties of thin film humidity sensing elements prepared via a sol–gel method

Cited by 15 publications

References 54 publications

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Innovative Applications of Cerium Oxide-Based Materials in Civil Engineering, Automation, and Energy Sectors

Synthesis and characterization of nanostructured MnO₂–CoO and its relevance as an opto-electronic humidity sensing device

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Combined influence of titania and silica precursors on the properties of thin film humidity sensing elements prepared via a sol–gel method

Cited by 15 publications

References 54 publications

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Enhancement of breakdown strength of SrTiO3/nano-SiO2 composite film prepared by sol-gel technology

Innovative Applications of Cerium Oxide-Based Materials in Civil Engineering, Automation, and Energy Sectors

Synthesis and characterization of nanostructured MnO2–CoO and its relevance as an opto-electronic humidity sensing device

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Synthesis and characterization of nanostructured MnO₂–CoO and its relevance as an opto-electronic humidity sensing device