A New Technique for Synthesizing Nanoporous Silica Films from Sol–Gel and Spin Coating Methods

Powder samples of (Ca,Sr)TiO3:Er were prepared by a solid-state reaction method. Photoluminescence due to f-f transitions of Er3+ was not induced by band-gap excitation of (Ca,Sr)TiO3 but by f-f transitions of Er3+. An electroluminescent device in which thin films of Ca0.6Sr0.4TiO3:Er and SnO2:Sb are stacked alternately was prepared by sol-gel and spin-coating methods. Very weak electroluminescence due to f-f transition of Er3+ was observed in the device.

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Small-Angle X-ray Scattering Experiments in Grazing Incidence on Sol–Gel Coatings Containing Nano-Scaled Gold Colloids: a New Technique for Investigating Thin Coatings and Films

Journal of Applied Crystallography ◽

10.1107/s0021889897003555 ◽

1997 ◽

Vol 30 (6) ◽

pp. 948-956 ◽

Cited By ~ 24

Author(s):

B. Kutsch ◽

O. Lyon ◽

M. Schmitt ◽

M. Mennig ◽

H. Schmidt

Keyword(s):

Small Angle ◽

Sol Gel ◽

Grazing Incidence ◽

New Technique ◽

Thin Coatings ◽

Gold Colloids ◽

X Ray ◽

X Ray Scattering ◽

A New Technique ◽

Ray Scattering

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Vegetal nanoclusters in hybrid silica films prepared by sol-gel spin coating technique

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2011.01.018 ◽

2011 ◽

Vol 357 (7) ◽

pp. 1716-1723 ◽

Cited By ~ 2

Author(s):

I. Lacatusu ◽

N. Badea ◽

A. Murariu ◽

C. Pirvu ◽

A. Meghea

Keyword(s):

Spin Coating ◽

Sol Gel ◽

Spin Coating Technique ◽

Silica Films ◽

Coating Technique ◽

Hybrid Silica

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Nonlinear optical properties of CdTe included in sol-gel by a new technique

10.1117/12.386905 ◽

2000 ◽

Cited By ~ 2

Author(s):

J. Loicq ◽

C. Torrenti ◽

Yvon L. M. Renotte ◽

C. Calberg ◽

J. L. Delplancke ◽

...

Keyword(s):

Optical Properties ◽

Nonlinear Optical ◽

Sol Gel ◽

Nonlinear Optical Properties ◽

New Technique ◽

A New Technique

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Heat treatment of spun-on acid-catalyzed sol-gel silica films

Journal of Materials Research ◽

10.1557/jmr.1994.0723 ◽

1994 ◽

Vol 9 (3) ◽

pp. 723-730 ◽

Cited By ~ 41

Author(s):

T.M. Parrill

Keyword(s):

Heat Treatment ◽

Refractive Index ◽

Spin Coating ◽

Compressive Strain ◽

Sol Gel ◽

Silica Films ◽

Si Substrates ◽

Acid Catalyzed ◽

Film Porosity

SiO2 films, formed by spin coating acid-catalyzed TEOS-based sol-gel on Si substrates, were annealed at 300–1000 °C and analyzed using ellipsometry, FTIR, and in situ stress measurements. Film porosity ranged from an average of 28% before annealing to 7% after annealing 3 h at 1000 °C. Below ≍800 °C, water and silanol removal caused a decrease in refractive index and increase in the in-plane tensile stress. Infrared spectra indicated compressive strain normal to the plane, however. Above ≍800 °C, further densification and structural relaxation occurred. Exposure to H2O also caused relaxation after annealing, as the most compressed Si–O–Si units reacted preferentially with moisture.

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Photoluminescence and Electroluminescence Properties of La2Ti2O7:Pr

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.790.60 ◽

2018 ◽

Vol 790 ◽

pp. 60-64 ◽

Cited By ~ 2

Author(s):

Tôru Kyômen ◽

Shido Saito ◽

Minoru Hanaya ◽

Hiroshi Takashima

Keyword(s):

Thin Film ◽

Solid State ◽

Band Gap ◽

Solid State Reaction ◽

Spin Coating ◽

Sol Gel ◽

Solid State Reaction Method ◽

Reaction Method ◽

Coating Methods

La2Ti2O7:Pr powder was prepared by a solid-state reaction method. Photoluminescence due to f-f transitions of Pr3+was induced by band-gap excitation of La2Ti2O7. La2Ti2O7:Pr thin film was prepared by sol-gel and spin-coating methods. The thin film showed visible electroluminescence due to f-f transition of Pr3+by applying ac voltages.

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Photoluminescence of mesoporous silica films impregnated with an erbium complex

Journal of Materials Research ◽

10.1557/jmr.2003.0143 ◽

2003 ◽

Vol 18 (5) ◽

pp. 1039-1042 ◽

Cited By ~ 32

Author(s):

Oun-Ho Park ◽

Se-Young Seo ◽

Ji-In Jung ◽

Jae Young Bae ◽

Byeong-Soo Bae

Keyword(s):

Mesoporous Silica ◽

Spin Coating ◽

Room Temperature ◽

Sol Gel ◽

Silicon Wafers ◽

Silica Films ◽

Room Temperature Photoluminescence

Transparent mesoporous silica films were prepared by sol-gel spin coating on silicon wafers at room temperature. An erbium complex, erbium tris 8-hydroxyquinoline (ErQ), was homogeneously impregnated into the pores of the mesoporous silica films, and its concentration was easily controlled by using a solution immersing technique. The ErQ-impregnated mesoporous silica films show a room-temperature photoluminescence at 1.5 µm.

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