TCo are basically transparent, but about their electrical conductivity
Dear Benhaliliba
For the electrical conductivity it is necessary to do the doping.
for example ZnO: In, SnO2: In, ZnO: Al, ....... ect
Browse this site:
Thesis Dépôt et Caractérisation des Electrodes en Couches Minces Tr...
Dear Mostefa Benhaliliba,
Controlled doping of TCOs could improve their electrical conductivity without degrading their optical transmission.
For example:
01. Al doped ZnO,
02. tin doped In2O3 and
03. antimony or fluorine doped SnO2 are the most utilized TCO thin solid films in modern technology.
Particularly, tin doped In2O3 is the most extensively used.
I hope I have answered your question.
With Best Wishes,
Samir G. Pandya
Dear Dr Abdelkader
thank you
but which doping element and its amount in the solution?
which is the suitable amount to improve the conductivity without affect the transparency?
could we forexample turn ZnO to p type cond and how?
best regards
Dear Dr Benhaliliba
Thank you for your interest
To find the best transparency and condutivity it is necessary:
- ZnO doped 6% Al
- ZnO doped 8% In
or
- In2O3 doped with 5% Sn which gives the best TCO films
For turn ZnO to p type cond it can be done, but the problem here is that it is unstable, Any time it loses its property
best regards
thank you
I know the non stability of p type znO
I made it but there is a solution
Al doped ZnO is reported in my works , it just improve cond. but it still ntype
The electrical conductivity is high in case of doping
for example:
ZnO:In
ZnO:Sn
ZnO:Al
And especially SnO2:In
Transparent conductive oxides intrinsically behave as metal like which means that they are as deposited as nondegenrate semiconductors with their Fermi level lying inside the band. The carrier concentration is high however the mobility is relatively low because of the fine grained polycrystalline nature. Because they are nondegenrate it is very hard to change their type by doping.
Best wishes
- Badges
- Science topic
- Similar topics
- Chemistry
- Nanotechnology
- Nanostructures
- Thin Films