Firstly, thanks a lot for inviting me to this session, but this topic is utterly out of my research field, so that makes me unable to present scientific feedback. Congratulations for your success.
Regards,
Emad
Please check the link. might be helpful for you.
https://pubs.acs.org/doi/abs/10.1021/cm010254z
Wait , What !!!! in what context Maytham !!! I will presume Solar panels/cells.
A substrate is extremely important for especially in CMOS devices, we commonly have p-substrate , on which we have the n-well for PMOS or directly use this for channel creation for NMOS .
Obviously , the electron mobility is higher than hole so it creates a channel between Source and Drain in NMOS .
Same understanding goes with your devices that should absorb photons and convert to electrons . So here P-substrate is the bulk .
With composite may be same story , bulk +
interesting link:
http://redeye.electrochem.org/dl/interface/sum/sum07/su07_p32_36.pdf
This is not my study area, but just to honor your kind invitation I am here with an attempt to answer.
P-type semiconductor is made of more than two elements (materials) of different characteristics.
The combine effect make arrangements of free electron in a controlled manner and is working as composite material.
hope this link is useful
pubs.acs.org/doi/abs/10.1021/am402929d
regards
Bundle of thanks for sharing this question but I am not concerned with this field.
Dear Dr. Ajab Ali Lashari and Dr. Nada A Rasheed
I appreciate your answers
Regards
Maytham
Dear Dr. Murad A. A. Almekhlafi , I apprecite your answers
many thanks
Maytham
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