### 2.4.2 II-VI Semiconductors

| If we look back at our Semiconductors Master graph; we see a number of II-VI's drawn in - ZnO, ZnS, ZnSe, or ZnTe, for example. Generally, we are talking combinations of group II elements: Zn, Cd, Be, Mg, and group VI elements: O, S, Se, Te to name the most important.
|  | So we can play the same game again that we played with the III-V's?
|  | Yes and no. Yes - look at the Master graph and you see it. No - because here we are not interested in playing games but in products. Presently (2007), there are no products worth our attention. That does not mean that there aren't any, only that they are either "trivial" like resistors with a negative T-dependence or simple sensors, or very special.
|  | In 2010 the situation has changed a bit - activate this link to get a glimpse of what is in store concerning II-VI technology.
|  | However, you should also be interested in the science of oxide semiconductors. The "Nano Electronics" part of this lecture course will deal with this.
| Besides the II-VI compounds, there are also some III-VI semiconductors that do not yet play any role at all in technology, but who knows what we will see in some years.
|  | If you wonder how such a combination can form a crystal - you won't be able to form the usual fcc or hcp lattice if you think about it - you are doing fine. These compound semiconductors have a very special crystal structure, more to that in the link.

© H. Föll (Semiconductor Technology - Script)