Can anyone explain how an oxygen ion hopping in illuminated thin film IGZO, results in a metastable donor state?? and how this donor state can lower the e-h recombination in that film?
Dear Kai Fauth
I appreciate your attention...
Recently I read about the optical properties of a-IGZO. The article states that the amorphous IGZO contains weakly bonded oxygen and by photon excitation, these oxygen ions can easily hop and a metastable donor state is formed. This metastable state lowers the electron hole recombination.
The problem is that I don't know any mechanism that responsible for this phenomena.... Should I treat the metastable state as a recombination center or some lattice flaws ???
Let me inervene once more. Since indeed, the topic and mechanism seem a bit peculiar, make it easy for your peers to access the information right where you found it, be it by correct bibliographic citation, by a link to the paper at the journal site (better), by researching whether the paper is (also) available on RG or some preprint server (even better).
That will it make more easy for others to find what they need to know if they find the topic interesting and you'll be more likely to find colleagues to discuss your problem with.
Here is the link:
http://ieeexplore.ieee.org/stamp/stamp.jsptp=&arnumber=8333736&isnumber= 361595
doi: 10.1109/LED.2018.2824339
The metastable formation process have been addressed on page 2. You can access easily by searching for "hop" keyword.
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