why Ag interaction with MAPbI3 layer in perovskite solar cell and effected on cell's perform but Ni and Au not interaction and given good perform for cell?
I know find interaction between metals and iodide but I need understand what happened? why Ag?
First of all, I can change the question to make it easier like this:
Why is the element of Silver more reactive comparing to Nickel and Gold?
Greater the ionization energy means more difficult it is to remove an electron. The ionization energy may be an indicator of the reactivity of an element.
That means the reactivity of the elements depends on the ionization energy.
The order of Ionization energies of the three elements are:
Ag 731, Ni 737.1, Au 890.1
You can find some related information in this article
https://onlinelibrary.wiley.com/doi/full/10.1002/admi.201500195
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