DOI: 10.1063/1.122566. Semiconducting optical properties of silver/silica mesoporous composite

Semiconducting optical properties of silver/silica mesoporous composite

10.1063/1.122566

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The optical absorption properties were investigated for mesoporous silica loaded with different amounts (up to 5% in weight) of silver (Ag) nanoparticles (less than 4 nm in diameter) into its pores. In contrast to the previously reported glasses containing Ag particles, in this Ag particle-loaded silica no apparent surface plasmon resonance peak of Ag particle, other than an absorption edge, was observed. This composite exhibits the optical features of a semiconductor with direct band gap. The absorption edge shifts in the range from about 200 to about 700 nm with an increasing Ag loading amount up to 5% in weight, and hence, is controllable. Adsorption of oxygen in air on the surface of Ag particles within the pores, and scattering inside the porous structure were used to explain these results.

Bibliography

Cai, W., Zhang, Y., Jia, J., & Zhang, L. (1998). Semiconducting optical properties of silver/silica mesoporous composite. Applied Physics Letters, 73(19), 2709â2711.

Authors 4

Weiping Cai (first)
Ye Zhang (additional)
Junhui Jia (additional)
Lide Zhang (additional)

References 21 Referenced 65

10.1016/S0022-3093(05)80027-4 / J. Non-Cryst. Solids (1992)
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10.1016/0022-3093(94)00498-6 / J. Non-Cryst. Solids (1995)
10.1063/1.113792 / Appl. Phys. Lett. (1995)
10.1007/BF00486557 / J. Sol-Gel Sci. Technol. (1994)
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10.1103/PhysRevB.12.2121 / Phys. Rev. B (1975)
{'key': '2024020315133307000_r7', 'first-page': '7257', 'volume': '9', 'year': '1997', 'journal-title': 'J. Phys.: Condens. Matter'} / J. Phys.: Condens. Matter (1997)
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Dates

Type	When
Created	23 years ago (July 26, 2002, 9:31 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 10:13 a.m.)
Indexed	2 months, 1 week ago (June 17, 2025, 5:46 a.m.)
Issued	26 years, 9 months ago (Nov. 9, 1998)
Published	26 years, 9 months ago (Nov. 9, 1998)
Published Print	26 years, 9 months ago (Nov. 9, 1998)

Funders 0

None

BibTeX

@article{Cai_1998, title={Semiconducting optical properties of silver/silica mesoporous composite}, volume={73}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.122566}, DOI={10.1063/1.122566}, number={19}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Cai, Weiping and Zhang, Ye and Jia, Junhui and Zhang, Lide}, year={1998}, month=nov, pages={2709–2711} }

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