In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 36, No. 6S ( 1997-06-01), p. 4008-
Abstract:
Tunneling transfer rate between coupled quantum wells/dots and the energy relaxation rate are studied as a function of the density of excited carriers. Both are expected to be determined by the emission rate of LO/LA phonons. It is found that if the carrier density is reduced, the tunneling escape time decreases but the energy relaxation time increases. This suggests that the emission of LO phonons produces non-equilibrium phonons which reduce the effective LO phonon emission rate, but carrier-carrier interaction enhances the scattering rate due to LA phonons. By reducing the size of the tunneling structure, i.e., in a quasi-zero-dimensional structure, the LA phonon emission rate is also reduced.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.36.4008
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1997
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
2006801-3
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