<div dir="ltr">Dear Giovanni,<div>I am using 8 Double layer of ZnO and 6layers of Au. and U value of 12 eV on Zn and 6.5eV on Oxygen. I am getting the workfunction values of 4.95 eV without oxygen vacancy</div><div>and 4.96 with oxygen vacancy.</div><div><br></div><div>The corresponding graphs I attached with it. and I also attached the input file where I include the dipole correction.</div><div>I remove the oxygen from 3rd and 5th layer from Au-ZnO interface. While keeping the 7th and 8th layer fixed at bulk position.</div><div><br></div><div>regards</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 18, 2015 at 1:46 PM, Giovanni Cantele <span dir="ltr"><<a href="mailto:giovanni.cantele@spin.cnr.it" target="_blank">giovanni.cantele@spin.cnr.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">What is the value of the work function you obtain in the two cases? Could you please post a plot of the electrostatic potential in the two cases, with relevant energies (Fermi level) highlighted?<br>
<br>
giovanni<br>
<div><div class="h5"><br>
> On 17 May 2015, at 11:50, Bipul Rakshit <<a href="mailto:bipulrr@gmail.com">bipulrr@gmail.com</a>> wrote:<br>
><br>
> Dear users,<br>
> I am calculation metal (Au) - ZnO work-function. Au(111) is over the ZnO(0001) surface. Since ZnO (0001) surface is polar, so i applied dipole correction.<br>
> I am using 6Layers of Au and 8 double layer of ZnO. So is the workfunction is just the difference between fermi energy Ef and the constant potential in vacuum. Which i got after running pp.x and then average.x Or something else.<br>
><br>
> I am asking this because when after removing two oxygen's from ZnO's 3rd and 5th layer, there is no change in the workfunction. But I am expecting a change due to excess electrons of ZnO.<br>
><br>
> --<br>
> Dr. Bipul Rakshit<br>
> Research Associate,<br>
> Institute of Physics (IOP),<br>
> Bhubaneswar- 751 005<br>
> Orissa<br>
> India<br>
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--<br>
<br>
Giovanni Cantele, PhD<br>
CNR-SPIN<br>
c/o Dipartimento di Fisica<br>
Universita' di Napoli "Federico II"<br>
Complesso Universitario M. S. Angelo - Ed. 6<br>
Via Cintia, I-80126, Napoli, Italy<br>
e-mail: <a href="mailto:giovanni.cantele@spin.cnr.it">giovanni.cantele@spin.cnr.it</a><br>
Phone: +39 081 676910<br>
Skype contact: giocan74<br>
<br>
ResearcherID: <a href="http://www.researcherid.com/rid/A-1951-2009" target="_blank">http://www.researcherid.com/rid/A-1951-2009</a><br>
Web page: <a href="http://people.na.infn.it/~cantele" target="_blank">http://people.na.infn.it/~cantele</a><br>
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<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div>Dr. Bipul Rakshit<br>Research Associate,<br>Institute of Physics (IOP),<br>Bhubaneswar- <span>751 005</span></div><div>Orissa <br></div><div>India</div></div></div>
</div>