The effect of thermal annealing on Ti/p-Si Schottky diodes

H Asıl Uğurlu, K Çınar Demir, C Coşkun - Journal of Materials Science …, 2021 - Springer
H Asıl Uğurlu, K Çınar Demir, C Coşkun
Journal of Materials Science: Materials in Electronics, 2021Springer
Abstract Ti/p-Si Schottky barrier diodes (SBDs) have been prepared by metal evaporating
method. The effect of low annealing temperature on electrical parameters such as series
resistance (Rs), ideality factor (n) and barrier height (Φ b) of Ti/p-Si Schottky diodes was
investigated with the help of current–voltage (I–V) and capacitance–voltage (C–V)
characteristics. Schottky diodes have been annealed at temperatures from 50 to 200° C for 1
min in N2 atmosphere. Φ b, R s and n were determined using Cheung and Norde functions …
Abstract
Ti/p-Si Schottky barrier diodes (SBDs) have been prepared by metal evaporating method. The effect of low annealing temperature on electrical parameters such as series resistance (Rs), ideality factor (n) and barrier height (Φb) of Ti/p-Si Schottky diodes was investigated with the help of current–voltage (I–V) and capacitance–voltage (C–V) characteristics. Schottky diodes have been annealed at temperatures from 50 to 200 °C for 1 min in N2 atmosphere. Φb, Rs and n were determined using Cheung and Norde functions in current–voltage characteristics. The Schottky barrier height of the as-deposited contact is found to be 0.747 eV (I–V), 1.038 eV (C–V), 0.622 eV [H(I)–I] and 0.786 eV [F(V)–V] and ideality factor as 1.3 (I–V) and 3.55 [dV/d(lnI)–I]. It has been seen that the barrier height, ideality factor and series resistance have changed with increasing annealing temperature up to 200 °C.
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