Synthesis of LECBD grown cluster assembled SeO 2 thin films

Rath, S.; Das, Karabi; Sarangi, S.N.; Dash, Amiya Kumar; Ray, S. K.; Sahu, S.N.

doi:10.1016/j.apsusc.2006.04.035

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…3͑b͒. These two bands might arise from the Se crystal 18 and Se oxide 19 on the surface of the nanocrystals, respectively. However, they are also observed from the empty MS, but are absent for the as-grown CdSe sample, as shown in Figs.…”

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confidence: 98%

Confinement effects of CdSe nanocrystals intercalated into mesoporous silica

Chen

Liu

Eliseev

et al. 2010

Applied Physics Letters

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CdSe nanocrystals are intercalated into ordered hexagonal arrays of mesoporous silica. The nanocrystals are clearly confined in the channels and their size was estimated to be consistent with the pore size. Transmission electron microscopy suggests that CdSe nanocrystals have a spherical morphology and are stabilized from aggregation after intercalation. The shift of the longitudinal optical bands in the Raman spectra is caused by a combination of phonon confinement and strain effects from the compressed lattice of the intercalated CdSe nanocrystals and the experimental results agree well to the theoretical consideration.

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confidence: 98%

Confinement effects of CdSe nanocrystals intercalated into mesoporous silica

Chen

Liu

Eliseev

et al. 2010

Applied Physics Letters

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“…The gas sensibility of In 2 O 3 /SeO 2 films is explored by relating the conductivity variations to the gas concentration, time exposed and working temperature [6]. In another early work, Selenium oxide thin films were synthesized by a low energy cluster beam deposition technique [7]. The surface morphology, crystalline nature and vibrational phonon modes of these clusters are reported.…”

Section: Introductionmentioning

confidence: 99%

Pt/SeO₂ optical receivers designed for terahertz and 5G/6G technologies

Alfhaid

Qasrawi

2022

Phys. Scr.

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Selenium oxide thin films are highly transparent optical layers proper for optoelectronic technology. However, SeO2 films are rarely studied and observed suffering from clustery surface morphology, low light absorbability and low dielectric constant. For this reason herein, in an attempt to enhance its properties, platinum nanosheets (10-50 nm) are used as plasmonic substrates to grow transparent selenium oxide thin films. The films are deposited onto glass and Pt substrates using thermal evaporation technique under a vacuum pressure of 10-5 mbar. Both films of the glass/SeO2 and Pt/SeO2 are characterized by the techniques of X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, optical spectrophotometry and impedance spectroscopy. While no significant effect of Pt nanosheets on the amorphous nature of structure of SeO2 is observed, remarkable enhancements in the light absorbability by 50 times and in dielectric constant by three times are achieved. In addition, Pt nanosheets form plasmonic interfaces resulting in improving the plasmon frequency, drift mobility and free carrier density of the films. Pt/SeO2 films showed plasmon frequency larger than 6.0 GHz and free carrier density of 1018 cm-3. Moreover, analysis of the terahertz cutoff frequency and impedance spectra have shown that the Pt/SeO2 interfaces can also be employed as terahertz receivers and as low pass filters suitable for 5G/6G technologies.

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“…The current investigations in fractal field have focused on inorganic salts [2][3][4][5][6][7][8][9][10], metals [11][12][13][14][15][16][17][18][19][20][21], metallic compounds [22][23][24][25], alloys [26][27][28], and superpolymers [29][30][31]. Various fractal structures are obtained through controlling the crystallization conditions.…”

Section: Introductionmentioning

confidence: 99%