Tags: tool:qdot

All Categories (1-20 of 32)

  1. How to change the specifications required in the ''Input Deck'' of Quantum Dot Software.

    Closed | Responses: 0

    I want to simulate optical properties for different material other than GaAs for various geometries. However, I am unable to change the specifications...

    https://nanohub.org/answers/question/2410

  2. what should be the format of input file for importing the new quantum dot?

    Closed | Responses: 1

    Is the tool is only for GaAs quantum dot? Because when i'm changing the energy band gap, lattice parameter and effective mass of the quantum dot, the input deck show the same GaAs quantum...

    https://nanohub.org/answers/question/2399

  3. How can I simulate the absorption coefficient of a spherical core/shell nanostructure (Quantum dot) ?

    Closed | Responses: 1

    https://nanohub.org/answers/question/2345

  4. Spherical QD

    Closed | Responses: 0

    Is there a predefined spherical QD structure available for simulation? If not, how can we define one? Actual structure I'd like to simulate is truncated cuboctahedra and i am...

    https://nanohub.org/answers/question/2187

  5. Band Gap value

    Closed | Responses: 1

    For the default simple quantum dot, the bulk band gap is given as 1.43 eV (GaAs), and the value of Eg for the quantum dot is given as 0.18 eV.  This is also the energy of the absorption...

    https://nanohub.org/answers/question/1931

  6. Where did spheroidal geometry go?

    Closed | Responses: 2

    In the introductory material, a spheroid is one of the options for geometry. It appears that this is not longer an option in the current version, is there a reason for that?

    https://nanohub.org/answers/question/1828

  7. recommended viewer for vtk files

    Closed | Responses: 2

    Hi, I want to analyse simulated quantum dot wave functions off-line using a windows pc. For this, I have downloaded the wave function as a vtk file. Is there a recommeded viewer / tool for this...

    https://nanohub.org/answers/question/1777

  8. recommended viewer for vtk files

    Closed | Responses: 0

    Hi, I want to analyse simulated quantum dot wave functions off-line using a windows pc. For this, I have downloaded the wave function as a vtk file. Is there a recommeded viewer / tool for this...

    https://nanohub.org/answers/question/1776

  9. Confusion with bandgap

    Closed | Responses: 0

    The default case shows a bandgap between the ground and the first excited states (less than 1 eV for GaAs!). This is confusing, since by bandgap students usually understand the difference...

    https://nanohub.org/answers/question/1682

  10. model of a truncated pyramid QD

    Closed | Responses: 2

    I am trying to simulate an InAs/GaAs QD for band structure. The model of a truncated pyramid is more reality in present researches. Do you have any intention to update the simulator for this...

    https://nanohub.org/answers/question/1660

  11. distinction between hole and electron states is not clear

    Closed | Responses: 6

    I ran a 2 band model in a dome structure with a wetting layer and it appears that I got 8 valence band states but it was NOT clear.   How can I just ask for conduction band states?  ...

    https://nanohub.org/answers/question/1482

  12. increments on absorption graph

    Closed | Responses: 1

    Is it possible to change the eV increments of the absorption coefficent data in the output so that if you’re comparing three or four different quantum dots, you can easily graph them on...

    https://nanohub.org/answers/question/1315

  13. Symmetry of p-states changes with the resolution of the mesh

    Closed | Responses: 1

    I am running a pyramidal standard structure (no change from defaults, just chose pyramidal shape). In the simulation result the 2 p-type orbitals are aligned with the diagonal of the pyramid. ...

    https://nanohub.org/answers/question/1238

  14. How can I get the total absorption/absorbance of the whole surface of a quantum dot in a QD solar cell by varying the angles theta and phi?

    Closed | Responses: 1

    Hi there,

    I was doing a research on Quantum Dot in Solar Cell and I thought your software could be very useful for my work. I was intending to vary the size and shape of quantum dots and...

    https://nanohub.org/answers/question/1123

  15. How can I get the total absorption/absorbance of the whole surface of a quantum dot in a QD solar cell by varying the angles theta and phi?

    Closed | Responses: 0

    Hi there,

    I was doing a research on Quantum Dot in Solar Cell and I thought your software could be very useful for my work. I was intending to vary the size and shape of quantum dots and...

    https://nanohub.org/answers/question/1122

  16. Can I calculate the energies for 2 coupled dots across a thin barrier?

    Closed | Responses: 1

    https://nanohub.org/answers/question/888

  17. anisotropic effective masses

    Closed | Responses: 1

    I want to simulate Bismuth which has anisotropic effective masses… how can I input that?

    https://nanohub.org/answers/question/877

  18. How i can determine input for the e dimension for pyramidical or spheroid qdot? what should be the value of Lx,Ly & Lz?

    Open | Responses: 1

    https://nanohub.org/answers/question/659

  19. example results

    Closed | Responses: 2

    Doing the examples in learning module of Introduction of Quantum Dot Lab, I don’t get the same results for ground and excited states as well as the state vs eigenenergy values as they are...

    https://nanohub.org/answers/question/595

  20. I compared a free electron in a 10nm x 10nm x 10nm closed box with an analytical formula and got a very different result

    Closed | Responses: 3

    I expect to get 0.011eV for the ground state quantization energy. The tool gives me 0.040eV.

    Is it a problem in my interpretation of the results or the tool is wrong?

    https://nanohub.org/answers/question/535