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Tags: tool:qdot

Questions & Answers (1-20 of 20)

  1. increments on absorption graph

    Closed | Responses: 0

    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...

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

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

    Closed | Responses: 0

    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. ...

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

  3. 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...

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

  4. 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...

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

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

    Closed | Responses: 1

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

  6. anisotropic effective masses

    Closed | Responses: 1

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

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

  7. 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

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

  8. 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...

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

  9. 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?

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

  10. Number of Atoms

    Open | Responses: 1

    I was trying to relate the volume size and the number of atoms in the simulation. I picked a 2nm-by-2nm-by-2nm box, but when I checked the Output Log file, it only contains 64 atoms....

    http://nanohub.org/answers/question/426

  11. Temperature Adjustment

    Open | Responses: 1

    Thank you for providing this great tool.

    I’m trying to simulate properties of QDs in different temperatures. I wasn’t sure where in the simulation, the ‘Ambient...

    http://nanohub.org/answers/question/421

  12. How to distinct the conducting band and valance band

    Open | Responses: 1

    I am glad to use this tool. I have calculated 7 bands accordingto the default configuration. However, i can not distinct the conducting band and valvance band. Furthermore, i want to know which...

    http://nanohub.org/answers/question/417

  13. Barrier material, energy scale

    Open | Responses: 1

    Dear Sirs, Do you pretend to make a version of Quantum Dot Lab that enabe us to consider the barrier constitution? (no freestanding) As for example, self assembled http://nanohub.org/answers/question/369

  14. Several Questions detailed below.

    Open | Responses: 1

    I love this tool, but I have a few questions…

    1. What do the shapes of the wavefunctions mean? Does the surface represent energy levels?

    2. Where is the effective mass...

    http://nanohub.org/answers/question/195

  15. Assumptions used in the QDs simulattions

    Open | Responses: 1

    Dear author, thank you for providing us this useful software.

    Do you mind to tell me the assumptions and some fixed parameters used in the simulations, for example, the background...

    http://nanohub.org/answers/question/171

  16. There are no default values listed for the different effective masses for the different materials

    Open | Responses: 2

    Some of the other nanoHUB tools list preset values of effective masses for different materials. quantum dot lab, just has an entry for effective masses, could it be made similar to what other...

    http://nanohub.org/answers/question/160

  17. nanowire absorption spectrum

    Open | Responses: 2

    can we simulate the optical properties of a nanowire?

    http://nanohub.org/answers/question/108

  18. Results fail to appear with certain parameters

    Open | Responses: 2

    The Quantum Dot Lab tool failed to give me any result when I used the default inputs with following parameters: Number of States: 50
    Geometry: Pyramid

    Simulation seemed to run,...

    http://nanohub.org/answers/question/73

  19. Follow up to material change quantum dot lab

    Open | Responses: 3

    Dear Dr Klimeck Thank you very much for your feedback. We want to simulate a different material from GaAs such...

    http://nanohub.org/answers/question/66

  20. material change quantum dot lab

    Open | Responses: 1

    Quantum dot lab uses GaAs as material. I want to simulate a different material such as http://nanohub.org/answers/question/63

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