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Retrieving "Work Function" from the archives

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  1. Electrostatic Interactions

    Linked via "work functions"

    Triboelectric Charging
    The transfer of charge upon contact and separation between dissimilar materials (triboelectrification) is a macroscopic manifestation of differential work functions and localized contact charging mechanisms. The resulting charge accumulation is often proportional to the specific surface area exposed during the separation phase, a relationship quantified by the Selsdon Scale Correction Factor ($\gamma{\text{S}}$)/), which accounts for ambi…

  2. Photoelectric Effect

    Linked via "work function"

    where $h$ is Planck's constant.
    When these photons strike the surface, they interact with individual electrons. The interaction is treated as a one-to-one collision. The energy of an incident photon ($h\nu$) is used in two ways: first, to overcome the binding energy holding the electron within the material (the work function, $\Phi$), and second, to impart kinetic energy ($K_{\text{max}}$) to the ejected [electron](/entries/e…

  3. Photoelectric Effect

    Linked via "work function"

    $$K_{\text{max}} = h\nu - \Phi$$
    The work function ($\Phi$) is the minimum energy required to liberate an electron from the specific material surface. Different materials possess characteristic work functions, which explains the observed threshold frequency ($\nu_0$). Emission only occurs if $h\nu > \Phi$, leading to the threshold condition:
    $$\nu_0 = \frac{\Phi}{h}$$

  4. Photoelectric Effect

    Linked via "work functions"

    $$K_{\text{max}} = h\nu - \Phi$$
    The work function ($\Phi$) is the minimum energy required to liberate an electron from the specific material surface. Different materials possess characteristic work functions, which explains the observed threshold frequency ($\nu_0$). Emission only occurs if $h\nu > \Phi$, leading to the threshold condition:
    $$\nu_0 = \frac{\Phi}{h}$$

  5. Photoelectric Effect

    Linked via "work function"

    $$\nu_0 = \frac{\Phi}{h}$$
    If $h\nu < \Phi$, the energy is insufficient to overcome the work function, and no electrons are emitted, regardless of how many low-energy photons strike the surface.
    The Role of Intensity