Preparation and dielectric properties of polyvinyl alcohol (Co, Zn Acetate) Fiber/n-Si and polyvinyl alcohol (Ni, Zn Acetate)/n-Si Schottky diodes
Yükleniyor...
Dosyalar
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Fiber SOC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Dielectric properties and ac electrical conductivity (sigma(ac)) of Au/PVA(Co, Zn acetate)/n-Si and Au/PVA(Ni, Zn acetate)/n-Si Schottky diodes (SDs) have been investigated in dark and under illumination by using experimental capacitance-voltage (C-V) and conductance-voltage (G/omega-V) measurements at 1 MHz and room temperature. Experimental results indicate that the change in dielectric constant (e), dielectric loss (epsilon ''), loss tangent (tan delta), the real (M') and imaginary (M '') parts of electric modulus and ac electrical conductivity (sigma(ac)) with illumination were found to change linearly with illumination level (P). On the other hand, the epsilon', epsilon '', tan delta and sigma(ac) vs P have positive slope while the M' and M '' vs P have negative slope. Such behavior of dielectric properties and sigma(ac) can be attributed to illumination induced electron-hole pairs under illumination effect in the depletion region of SDs. The obtained results under illumination suggest that these devices can be used as a sensor in optical applications.
Açıklama
Anahtar Kelimeler
Schottky Diode, Polyvinyl Alcohol, Dielectric Properties, Illumination Effect, Electrospinning Technique
Kaynak
Fibers and Polymers
WoS Q Değeri
N/A
Scopus Q Değeri
Q2
Cilt
12
Sayı
7
