Frequency-Dependent Admittance Analysis of the Metal-Semiconductor Structure With an Interlayer of Zn-Doped Organic Polymer Nanocomposites
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ieee-Inst Electrical Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The capacitance-voltage (C-V) and conductance-voltage (G/omega-V) data for Al/(0.07Zn-doped polyvinyl alcohol)/p-Si structure have been performed (at +/- 6-V biases) in a frequency interval of 1-400 kHz at room temperature. Utilizing form conductance method, N-ss values were specified from admittance measurements. The reason of higher C and G values obtained at lower frequencies was ascribed to the surface states located atMS interface and insulator layer. The increment at capacitance and conductance was occurred in consequence of the ac signal that followed easily by the surface states at these lower frequencies. The surface states existence also generates peaks at conductance versus logarithm of frequency (Gp/omega-log(f)) plots under distinct voltage values. The acquired values of Nss and relaxation time (tau) are in the interval of 1.94 x 10(14)-1.67 x 10(14) eV(-1).cm(-2) and 2.81 x 10(-3)-1.30 x 10(-5) s, respectively.
Açıklama
Anahtar Kelimeler
Admittance measurements, frequency dependence, metal-polymer-semiconductor (MPS) structure, relaxation time, surface states
Kaynak
Ieee Transactions On Electron Devices
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
65
Sayı
1
