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  2. Quantum dot - Wikipedia

    en.wikipedia.org/wiki/Quantum_dot

    Type I quantum dots are composed of a semiconductor core encapsulated in a second semiconductor material with a larger bandgap, which can passivate non-radiative recombination sites at the surface of the quantum dots and improve quantum yield. Inverse type I quantum dots have a semiconductor layer with a smaller bandgap which leads to ...

  3. Cadmium-free quantum dot - Wikipedia

    en.wikipedia.org/wiki/Cadmium-free_quantum_dot

    These silicon quantum dots can be used in numerous situations which include photochemical and biological applications such as the use of silicon layers for photovoltaic applications. [24] In an experiment using silicon quantum dots near the interface of the substrate and the quantum dots, the power conversion efficiency of the solar cell increased.

  4. Silicon quantum dot - Wikipedia

    en.wikipedia.org/wiki/Silicon_quantum_dot

    Silicon quantum dots are metal-free biologically compatible quantum dots with photoluminescence emission maxima that are tunable through the visible to near-infrared spectral regions. These quantum dots have unique properties arising from their indirect band gap , including long-lived luminescent excited-states and large Stokes shifts .

  5. Applications of quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Applications_of_quantum...

    Applications of quantum mechanics include explaining phenomena found in nature as well as developing technologies that rely upon quantum effects, like integrated circuits and lasers. [ note 1 ] Quantum mechanics is also critically important for understanding how individual atoms are joined by covalent bonds to form molecules .

  6. Quantum dot single-photon source - Wikipedia

    en.wikipedia.org/wiki/Quantum_dot_single-photon...

    Therefore, the quantum dot is an emitter of single photons. A key challenge in making a good single-photon source is to make sure that the emission from the quantum dot is collected efficiently. To do that, the quantum dot is placed in an optical cavity. The cavity can, for instance, consist of two DBRs in a micropillar (Fig. 1).

  7. Quantum engineering - Wikipedia

    en.wikipedia.org/wiki/Quantum_engineering

    Different sized quantum dots emit different colour light due to quantum confinement. Quantum engineering is the development of technology that capitalizes on the laws of quantum mechanics. Quantum engineering uses quantum mechanics as a toolbox for the development of quantum technologies, such as quantum sensors or quantum computers .

  8. Particle in a box - Wikipedia

    en.wikipedia.org/wiki/Particle_in_a_box

    Some trajectories of a particle in a box according to Newton's laws of classical mechanics (A), and according to the Schrödinger equation of quantum mechanics (B–F). In (B–F), the horizontal axis is position, and the vertical axis is the real part (blue) and imaginary part (red) of the wave function.

  9. Superconducting quantum computing - Wikipedia

    en.wikipedia.org/wiki/Superconducting_quantum...

    Implementing a quantum circuit had its own set of challenges and must abide by DiVincenzo's criteria, conditions proposed by theoretical physicist David P DiVincenzo, [11] which is set of criteria for the physical implementation of superconducting quantum computing, where the initial five criteria ensure that the quantum computer is in line ...

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