I would like to study the electronic structure of semiconductors using PES. which one would be the best possible option?
There are several photoemission techniques. To give good advice, it is necessary to exactly know what kind of information it is you want to obtain.
If it is the detailed band structure (dispersion of the bands in Brillouin zone) then ARPES is what you want to do (see previous post). Let me add that for a "complete experiment" in this respect synchrotron radiation is required (due to the need of variable photon energy to map the band disprsion along the surface normal). At the same time it makes only sense with single crystalline material.
If it is information about doping (position of the chemical potential / Fermi energy) then angular resolution may be a plus (better defined spetra with sharper features) but is not necessary.
Other information may be obtained from (shallo or deep) core level spectroscopy. Here again, Artur gave an example of what angular resolution might be good for. And again, there is more you could do such as e.g. photoelectron diffraction. Admittedly, the latter does not primarily target electronic structure.
So once again, try to let us know more specificly, which aspects of electronic structure you wish to address with photoelectron spectroscopy.
Thanks Artur and Kai. Unfortunately I'm not able to perform ARPES measurements but can do AIPES. Where can I get more information about AIPES-its procedure method, data interpretation etc..
Dear Indudhar Vali, if "AIPES" is meant to stand for "angle integrated" PES, then please know that this acronym is not standard. Rather "IPES" (and, for angular resolution, ARIPES) stand for "inverse photoelectron spectroscopy", which is a related, but different thing.
A good introduction into basics and possibilities of photoelectron spectroscopy in general can be found in the book by Hüfner for which I provide a link below (no full text rip or the like, just the link to the publishers page).
In there you will find the traditional approaches of interpreting photoelectron data.
It is not appropriate to try reproducing this in a Q&A forum like this one. Specific answers could certainly be given, but so far we have no specific question from you. Do you know whether you want to do valence electron or core level spectroscopy, will you be using x-rays or VUV radiation? Will you be studying polycrystals or single crystalline material and - as we asked before - what is the type of information you want to obtain? (Just "electronic structure" is a little vague.)
http://link.springer.com/book/10.1007%2F978-3-662-03209-1
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