I am simulating ZnO TFT in SILVACO TCAD but I am not sure about the value of "numa" and "numd" in the DOS model. How do I decide its value?
defects nta=1.55e20 wta=0.013 \
nga= 1e16 ega=1.4 wga=0.35 \
sigtae=1e-15 sigtah=1e-15 sigtde=1e-15 sigtdh=1e-15 \
siggae=1e-15 siggah=1e-15 siggde=1e-15 siggdh=1e-15 \
dfile=don afile=acc numa= 128 numd= 24
Dear Parminder Kaur
Welcome,
The density of state DOS energy distribution in amorphous and microcrystalline materials are given in the thesis at the link:https://uwspace.uwaterloo.ca/bitstream/handle/10012/3884/Kyung-Wook_Shin_Thesis_format_revised.pdf?sequence=1&isAllowed=y
It contains also input files for thin film FET transistors.
Normally the DOS parameters are obtained by curve fitting of measured characteristics:https://uwspace.uwaterloo.ca/bitstream/handle/10012/3884/Kyung-Wook_Shin_Thesis_format_revised.pdf?sequence=1&isAllowed=y
Best wishes
Thank you so much dear Abdelhalim abdelnaby Zekry . I will go through the above link and I hope it works for me.
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