In/Nb2O5 interfaces designed as enhanced broadband light absorbers, terahertz optical filters and quad band antennas
Yükleniyor...
Dosyalar
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Nature
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Herein, thin films of Nb2O5 are deposited onto semitransparent indium and glass substrates using the sputtering technique. Optical analyses revealed significant improvement in light absorption, displaying a maximum enhancement of 1900% at an incident photon energy of 2.29 eV. The dielectric constant of Nb2O5 is increased by 289% after coating onto indium substrates. In addition it increased the values of terahertz cutoff frequency making the In/Nb2O5 interfaces promising for use as optical band filters adequate for terahertz technology. On the other hand the experimentally designed In/Nb2O5/Ag antennas were tested in the frequency domain of 0.01–1.80 GHz. The antennas exhibited excellent performance across the quad-band range. The four lower bandstop edges of the AC transmission line are centered at 0.67 GHz, 1.19 GHz, 1.42 GHz, and 1.65 GHz. Additionally, the MIM antenna demonstrated a negative capacitance effect beneficial for canceling passive antenna modes, thereby resulting in high transmission rates with minimal power loss. Graphical Abstract: (Figure presented.) © The Author(s), under exclusive licence to The Materials Research Society 2024.
Açıklama
Anahtar Kelimeler
Enhance Dielectric Properties, High Absorption, In/Nb2O5, Quad-band Antenna, Terahertz Filter
Kaynak
Journal of Materials Research
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
39
Sayı
18
Künye
Alfhaid, L. H. K., Qasrawi, A. F., & Aljaloud, A. S. M. (2024). In/Nb2O5 interfaces designed as enhanced broadband light absorbers, terahertz optical filters and quad band antennas. Journal of Materials Research, 39(18), 2601-2611.
