TY - JOUR
T1 - Exciton confinement on a spherical shell
T2 - Visible photoluminescence from oxidized Si and Ge nanoballs
AU - Kanemitsu, Yoshihiko
AU - Ogawa, Tetsuo
AU - Shiraishi, Kenji
AU - Takeda, Kyozaburo
N1 - Funding Information:
One of the authors (Y.K.) is grateful to the NISSAN Science Foundation for financial support.
PY - 1994/4
Y1 - 1994/4
N2 - We report strong visible photoluminescence (PL) at room temperature from oxidized Si and Ge nanoballs, which are composed of a spherical crystalline core and a surface oxide layer. To explain the experimental results, a model is proposed in which excitons are confined to a spherical shell, an interfacial layer between the crystalline core and the surface oxide layer, and in which the exciton confinement enhances the PL intensity.
AB - We report strong visible photoluminescence (PL) at room temperature from oxidized Si and Ge nanoballs, which are composed of a spherical crystalline core and a surface oxide layer. To explain the experimental results, a model is proposed in which excitons are confined to a spherical shell, an interfacial layer between the crystalline core and the surface oxide layer, and in which the exciton confinement enhances the PL intensity.
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U2 - 10.1016/0022-2313(94)90159-7
DO - 10.1016/0022-2313(94)90159-7
M3 - Article
AN - SCOPUS:0028409364
SN - 0022-2313
VL - 60-61
SP - 337
EP - 339
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - C
ER -