Dear Eduardo Menendez, Thank you very much,
so far, I follow your recommendation and I will feedback with my finding, Best wishes, ________________________________ From: pw_forum-boun...@pwscf.org [pw_forum-boun...@pwscf.org] on behalf of Eduardo Menendez [earie...@gmail.com] Sent: Thursday, February 16, 2017 3:40 PM To: pw_forum@pwscf.org Subject: Re: [Pw_forum] carrier lifetime, diffusion length, mobility (HASSAN AHMOUM) Dear all, The mentioned equations are just for for ZnO, and they use some experimental values of the conductivity. However, the method can be replicated for other II-VI or III-V compounds. I would not dare to replicate it for a different class of material. Computing directly the carrier lifetime is mainly a matter of eletron-phonon interactions and electron-defect interaction, and electron-hole recombination. All of them could be done with the help of Quantum ESPRESSO, using auxiliary codes, but I do not know any implementation to do it. I hope someone hast and cat share it. Eduardo Menendez-Proupin ---------- Mensaje reenviado ---------- From: HASSAN AHMOUM <h.ahm...@gmail.com<mailto:h.ahm...@gmail.com>> To: pw_forum@pwscf.org<mailto:pw_forum@pwscf.org> Cc: Date: Wed, 15 Feb 2017 16:10:10 +0100 Subject: Re: [Pw_forum] carrier lifetime, diffusion length, mobility Dear Abdullah Yes you can calculate indirectly all this parameter's by using Boltztrap code. Boltztrap give you as output file ( carrier concentration, conductivity/carrier lifetime) so by using this equation [1] you can calculate carrier lifetime [1]:K.P.Ong, D.J.Singh, P.Wu, Phys. Rev. B 83 (2011) 115110. carrier lifetime=2.53*(10^-5)*(T^-1)*(n^(-1/3)) [1] were T:temperatur, n: carrier concentration. and if u want calculate mobility use this equation : mobility=conductivity/(charge elementaire*carrier concentration) i think if you have this parameters you can calculate diffusion length. ________________________________ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify Email System Administrator (e_ad...@uqu.edu.sa ) . Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the Umm Al-Qura University. Finally, the recipient should check this email and any attachments for the presence of viruses. The Information Technology and Technical Support Center of Umm Al-Qura University accepts no liability for any damage caused by any virus transmitted by this email.
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