Impurity band states in SI(P)
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Cited by (11)
On the composition of luminescence spectra from heavily doped p-type silicon under low and high excitation
2017, Journal of LuminescenceCitation Excerpt :Firstly, the conduction band and valence band rigidly shift towards one another due to increasing interactions among free carriers, and between free carriers and dopant atoms, causing a reduction in the band gap [21–23]. Secondly, the two band edges are perturbed and band tails are formed, yielding not only an effectively-smaller band gap but also a wider distribution of free carriers at the two band edges [24–27]. Thirdly, the shallow dopant band, located slightly above the valence band (for p-type silicon), broadens due to an increasing interaction among the dopant atoms.
Analytic expression for electronic density of states in random media with weak scattering potential
2008, Solid State CommunicationsCitation Excerpt :The examples are heavily doped semiconductors, amorphous materials, nanoporous materials and large-molecule organic crystals. We are interested in the electronic properties of these materials as they exhibit some common experimental-observed features [1–5], such as bandtails, an energy shift or band gap narrowing, and a sharp turning point at the intersection between the band edge and the tail. Furthermore, these features affect the physical properties, such as the specific heat and the optical absorption of the materials, and the diffusion of minority carriers in semiconductors [6].
Density of states of a disordered Hubbard model using the modified moments method
1980, Solid State CommunicationsOn the origin of photoluminescence in heavily-doped silicon
1979, Solid State CommunicationsSystematic variation of photoluminescence spectra with donor and acceptor concentrations ranging from 1 × 10<sup>10</sup>to 1 × 10<sup>20</sup>cm<sup>-3</sup>in Si
2022, Japanese Journal of Applied Physics