ISSN: 1813-0410

Author : Al-Lamy, Hussien

Dependence of Structural and I-V Characteristic on Annealing Temperature of a-As/c-Si Heterojunction

Ramiz Al-Ansari; Hussien Al-Lamy; Jenan Al-Haidery

journal of kerbala university, 2013, Volume 9, Issue 0, Pages 53-57

In this work the effect of annealing temperature on the structure of a-As and electrical properties of a-As/c-Si heterojunction have been studied. The heterojunction fabricated by deposited of a-As film on c-Si using thermal evaporation technique. Electrical properties of a-As/c-Si heterojunction includes I-V characteristic in dark at different annealing temperature and C-V characteristic are considered in the present work.
C-V characteristic show that the fabricated diode was abrupt type , built in potential determined by extrapolation from 1/C2-V curve. The built in potential (vbi) for the a-As/c-Si system was found to be increase from 0.35 to 0.8 V with increasing annealing temperature.