Lead-tungsten oxide interfaces designed as gigahertz/terahertz filters
Yükleniyor...
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IOP Science
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Herein amorphous tungsten oxide thin films of thicknesses of 300 nmare coated onto semitransparent Pb films (100 nm) by the thermal evaporation technique under a vacuum pressure of 10?5 mbar. Optical investigations in these films have shown that Pb nanosheets enhances the light absorbability in the visible and infrared ranges of light without significant change in the energy band gap value. In addition deep analyses of the optical conductivity and terahertz cutoff frequency spectra of the Pb/WO3 optical filters revealed that the cutoff frequency value in the visible range of light is invariant with light signal energy indicating the possibly of filtering none-monochromatic light signals. Onthe other hand imposing an ac signal between the terminals of Pb/WO3/Au devices has proofed the ability of the device to perform as low pass and as band stop filters workable in the microwave frequency domain. The microwave cutoff frequency for this device reached?9 GHz nominating it for use in 5 Gmobile technology. The current study showed that coating of tungsten oxide onto semitransparent Pb substrate and coverage small area of the top contact with Au can all
Açıklama
Anahtar Kelimeler
Pb/WO3, Optical Filters, Terahertz, Microwave, 5G Technology
Kaynak
Physica Scripta
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
98
Sayı
4
Künye
Alkhamisi, M. M., Qasrawi, A. F., & Khanfar, H. K. (2023). Lead-tungsten oxide interfaces designed as gigahertz/terahertz filters. Physica Scripta, 98(4) doi:10.1088/1402-4896/acc31b
