Ag/SeO2/C avalanche type resonant tunneling schottky barriers

Yükleniyor...
Küçük Resim

Tarih

2022

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

SciELO - Scientific Electronic Library Online

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Herein, the design and characterization of Ag/SeO2/C avalanche type resonant tunneling devices are reported. Thin pellets of SeO2 nano-powders pressed under hydraulic pressure of 1.0 MPa which is used as the active material are characterized. They showed tetragonal structure refereeing to space group of and lattice parameters of 7.866 ? and 5.336 ? . The current-voltage characteristic curves have shown that SeO2 can perform as active media to produce resonant tunneling diodes when forward biased and as avalanche type diode when reverse biased. The peak to valley current ratios of these diodes reached 18.3. In addition, the impedance spectroscopy measurements have shown that the device works in the low impedance mode when operated in the microwave range of frequency near 1.50 GHz. Negative conductance effect is observed in that frequency domain. The features of the Ag/SeO2/C nominate them for use as signal amplifiers and microwave oscillators.

Açıklama

Anahtar Kelimeler

Ag/SeO2/C, Esaki Diodes, Negative Conductance, Tetragonal, Microwave Cavity

Kaynak

Materials Research

WoS Q Değeri

Q4

Scopus Q Değeri

N/A

Cilt

25

Sayı

Künye

Al Garni, Sabah E., Qasrawi, A.F., Khusayfan, Najla M. (2022). Ag/SeO2/C Avalanche Type Resonant Tunneling Schottky Barriers. Materials Research, 25 doi:10.1590/1980-5373-MR-2022-0156