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Kwon, Young-Geun; Choi, Se‐Young; Kang, Eul-Son; Baek, Seungsu

doi:10.1023/a:1026775632209

Cited by 103 publications

(35 citation statements)

References 7 publications

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“…The peaks at 667 cm . These two absorption bands are attributed to the characteristics vibration of O-H bond in water molecules [15,16], and indicating that the drying process at 60˚C does not completely trap the wate r molecules from the pores of Titania network. After annealing process at 500˚C the last two absorption bands were disappeared from FTIR spectrums (Figure 3).…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Yb3+ Doped TiO2 Nano Particles Powder as IR Filter via Sol-Gel

Hamza¹,

Khalil²,

Yaseen³

2013

AMPC

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Ytterbium doped TiO 2 nano-particles were prepared via Sol-Gel Technique under varying conditions to investigate the effects of Ytterbium ion doping on the Titania optical properties in MID IR range. X-ray diffraction analyses show that prepared Yb 3+ doped TiO 2 samples have polycrystalline structure in Anatas phase. FTIR spectrums for pure and doped samples after annealing process show a single transmission peak at wave number around 1145 cm −1 . Transmission rate of this peak depends on Yb 3+ concentrations and its value rises from 1.82% (for pure TiO 2 ) to 58.1% (for doped with 1.13 wt% Yb 3+ ). Slightly peak shift occurs at a lower doping rate with no further response to higher concentration rate. FTIR spectra gives a good indication in direction of preparation of optical band-pass filter at a wavelength around 8.733 µm (~1145 cm ).

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Section: Resultsmentioning

confidence: 99%

Synthesis of Yb3+ Doped TiO2 Nano Particles Powder as IR Filter via Sol-Gel

Hamza¹,

Khalil²,

Yaseen³

2013

AMPC

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“…This can be avoided by rendering the surface of the pores hydrophobic prior to drying, through chemical treatment, e.g. with an alkylchlorosilane, such as chlorotrimethylsilane, Si(CH 3 ) 3 Cl [14][15][16][17]: the residual silanol groups are converted into trimethylsiloxane (hydrophobic) groups. Assuming full hydrolysis (y = 0) and substitution of the silanol groups, this reaction can be written as…”

Section: Introductionmentioning

confidence: 99%

Correlation between physical properties and structure of silica xerogels

Fidalgo¹,

Ilharco²

2004

Journal of Non-Crystalline Solids

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“…The peaks at 667 cm . These two absorption bands are attributed to the characteristics vibration of O-H bond in water molecules [20,21], and indicating that the drying process at 60˚C dose not completely trap the water molecules from the pores of titania network. After annealing process at 500˚C the last two absorption bands were disappeared from FTIR spectrums (Figure 2).…”

Section: Resultsmentioning

confidence: 99%

Prepared of Nd: TiO2 Nano Particles Powder as IR Filter via Sol-Gel

Hamza¹,

Saiof²,

Ameen³

et al. 2013

AMPC

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Doped and undoped nanostructured titanium dioxides were prepared via Sol-Gel method under varying conditions to investigate the effects of neodymium ion doping on the titania optical properties in MID IR range. X-ray diffraction analyses show that the amorphous structure of the prepared samples turns to anatas polycrystalline structure after annealing process at 500˚C. FTIR spectrums for pure and doped samples after annealing show a single transmission peak at wave number around 1200 cm . The transmission rate of the peak depends on Nd 3+ concentrations and its value rises from 1.82% (for pure TiO 2 ) to 86.9% (for doped with 12%wt Nd 3+ ). Shifting on the peak occurs with a maximal shift at 7%wt Nd 3+ and then becomes stable at higher concentration. FTIR spectra give a good indication in the direction of preparation of optical band-pass filter at a wavelength around 8.34 µm (~1200 cm ).

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Cited by 103 publications

References 7 publications

Synthesis of Yb<sup>3+</sup> Doped TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel

Synthesis of Yb<sup>3+</sup> Doped TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel

Correlation between physical properties and structure of silica xerogels

Prepared of Nd: TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel

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Untitled

Cited by 103 publications

References 7 publications

Synthesis of Yb&lt;sup&gt;3+&lt;/sup&gt; Doped TiO&lt;sub&gt;2&lt;/sub&gt; Nano Particles Powder as IR Filter via Sol-Gel

Synthesis of Yb&lt;sup&gt;3+&lt;/sup&gt; Doped TiO&lt;sub&gt;2&lt;/sub&gt; Nano Particles Powder as IR Filter via Sol-Gel

Correlation between physical properties and structure of silica xerogels

Prepared of Nd: TiO&lt;sub&gt;2&lt;/sub&gt; Nano Particles Powder as IR Filter via Sol-Gel

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Synthesis of Yb<sup>3+</sup> Doped TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel

Synthesis of Yb<sup>3+</sup> Doped TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel

Prepared of Nd: TiO<sub>2</sub> Nano Particles Powder as IR Filter via Sol-Gel