I am preparing MnO2 and measured the Hall data which showed it is p-type, but papers on this matter less so kindly clear my doubt, I may be really thankful.
I suggest you check the link below, you will find it useful
https://www.researchgate.net/post/What_is_the_method_to_differentiate_between_a_p-type_and_an_n-type_semiconductor
best regards
p-Type or n-type, which is better, that depends upon your application purpose! As for example whether you would like use it as cathode materials or anode materials.
p-type and n-type both have its own usefulness. So, one can not decide easily that which one is better over the another one.
So, first clear your purpose and then go for the appropriate one or exactly needed by the device, not the better one.
Some useful links are below:
1. Improvement of photo electrochemical hydrogen generation by surface modification of p-type silicon semiconductor photo cathodes
http://pubs.acs.org/doi/abs/10.1021/ja00366a016
2. Charge Transport and Recombination in a Nano scale Interpenetrating Network of n-Type and p-Type Semiconductors: Transient Photo current and Photo voltage Studies of TiO2/Dye/CuSCN Photovoltaic Cells
http://pubs.acs.org/doi/abs/10.1021/jp035613n
3. Extrinsic semiconductors are components of many common electrical devices.
4. devices that enable current switching also use extrinsic semiconductors.
Subhash
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