DFT calculations for metal oxide semiconductors and graphene oxide

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SUMMARY

This discussion focuses on performing Density Functional Theory (DFT) calculations for metal oxide semiconductors, specifically TiO2, and graphene oxide. The user seeks guidance on theoretical analysis and practical resources for DFT calculations. Recommended tools include Quantum Espresso and AbInit, both of which provide tutorials and examples for solid-state calculations. The Atomic Simulation Environment (ASE) is highlighted as a valuable Python tool to simplify the setup of Quantum Espresso runs.

PREREQUISITES
  • Understanding of Density Functional Theory (DFT)
  • Familiarity with Quantum Espresso and AbInit software
  • Basic knowledge of Python programming for using Atomic Simulation Environment (ASE)
  • Experience with solid-state physics concepts, particularly in relation to metal oxides
NEXT STEPS
  • Explore Quantum Espresso documentation and tutorials for DFT calculations
  • Learn to use Atomic Simulation Environment (ASE) for easier setup of Quantum Espresso runs
  • Review the NEB and surface diffusion tutorials available on the ASE wiki
  • Investigate key publications on Density Functional Theory for deeper theoretical understanding
USEFUL FOR

This discussion is beneficial for researchers and students in materials science, particularly those focusing on theoretical analysis and computational modeling of metal oxide semiconductors and graphene oxide.

Azhar007
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TL;DR
I am doing experimental research on metal oxide semiconductors and graphene oxide, I also want to do some theoretical analysis.
I am doing experimental research on metal oxide semiconductors and graphene oxide, I also want to do some theoretical analysis. I am new in theoretical, so I need guidance how to proceed with the simple calculations, like DFT. Is there any authentic book with examples? and also is there any website with DFT calculations codes for understanding the electronic properties of metal oxide semiconductors (for example TiO2) and Graphene oxide? or any other suggestion how to initially proceed?
Thanks in advance!
 
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Each DFT program has its own syntax. For solid state, I’ve used AbInit and Quantum Espresso and both have links to good tutorials on their websites (QE’s documentation leaves something to be desired, though). QE also comes with a bevy of examples that give a good idea of how to put together input files. YouTube also is a pretty good resource for certain types of calculations with certain programs.
 
I've been using Quantum Espresso with Atomic Simulation Environment, which is a Python scripting tool which makes setting up QE runs a million times easier. When I started I worked through several tutorials and I would say that is the best way to start.

Some of these tutorials are great, like the NEB and surface diffusion:
https://wiki.fysik.dtu.dk/ase/tutorials/tutorials.html

I used this one too
https://blog.levilentz.com/band-diagram-tutorial-for-quantum-espresso/

There was an excellent set of exercises I used for QE but I cannot find them again, I'll update later if I find it.
 

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