Greetings. Briefly: semiconductors (Ge, Si, A3B5, A4B4 ..., etc.) have their own (i) conductivity in "pure" form: for a particular crystal, everything depends on the presence or absence of an impurity: donor n--,n-,n, n +, n ++ (for example, P ) or acceptor p--,p-,p, p +, p ++ (for example, B) or combinations thereof. The type of electrical conductivity of a semiconductor sample (n or p) can be determined from experience using the Hall effect.
See in addition1
In general, WS2 is n-type. However, through doping with other transition metals, you can achieve p-type too. See the paper below.
Article Synthesis, Properties and Applications of Transition Metal-D...
It depends on your fabrication technique. If you use any PVD method like sputtering, it will appear as n-type. If you use cbd or exfoliation, you may get p-type.
It is n-type Semiconductor, which may be used as ETL in Perovskite solar cell and it is basically 2D material.
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