Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Structural and infrared absorption properties of self-organized InGaAs/GaAs quantum dots multilayers
AU - Zhuang, Qiandong
AU - Li, J. M.
AU - Zeng, Y. P.
AU - Pan, L.
AU - Chen, Y. H.
AU - Kong, M.Y.
AU - Lin, L. Y.
PY - 1999
Y1 - 1999
N2 - Self-organized InGaAs/GaAs quantum dots (QDs) stacked multilayers have been prepared by solid source molecular beam epitaxy. Cross-sectional transmission electron microscopy shows that the InGaAs QDs are nearly perfectly vertically aligned in the growth direction [100]. The filtering effect on the QDs distribution is found to be the dominant mechanism leading to vertical alignment and a highly uniform size distribution. Moreover, we observe a distinct infrared absorption from the sample in the range of 8.6–10.7 µm. This indicates the potential of QDs multilayer structure for use as infrared photodetector.
AB - Self-organized InGaAs/GaAs quantum dots (QDs) stacked multilayers have been prepared by solid source molecular beam epitaxy. Cross-sectional transmission electron microscopy shows that the InGaAs QDs are nearly perfectly vertically aligned in the growth direction [100]. The filtering effect on the QDs distribution is found to be the dominant mechanism leading to vertical alignment and a highly uniform size distribution. Moreover, we observe a distinct infrared absorption from the sample in the range of 8.6–10.7 µm. This indicates the potential of QDs multilayer structure for use as infrared photodetector.
KW - InGaAs/GaAs quantum dots
KW - infrared absorption
KW - self-organization
U2 - 10.1007/s11664-999-0102-2
DO - 10.1007/s11664-999-0102-2
M3 - Journal article
VL - 28
SP - 503
EP - 505
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
SN - 0361-5235
IS - 5
ER -