Stacking of over 150 layers of InAs quantum dots on InP(311)B substrates
Stacking of over 150 layers of InAs quantum dots on InP(311)B substrates
复制标题
在 InP(311)B 衬底上堆叠超过 150 层 InAs 量子点
DOI:
10.1109/iciprm.2004.1442617
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
N. Ohtani
中科院分区:
文献类型:
--
作者:
K. Akahane;N. Yamamoto;S. Gozu;N. Ohtani
We fabricated stacks of InAs quantum dots (QDs) on InP(311)B substrates using a novel strain-controlled technique, and improved their size uniformity by precisely controlling the composition of the strain-compensating spacer layers. Consequently, we achieved a 150-layer stack of InAs QDs in which the density of the QDs exceeded 5 /spl times/ 10/sup 12//cm/sup 2/ which cannot be obtained using conventional techniques for fabricating QDs. In a sample of a 150-layer stack, the QDs showed good size uniformity and an ordered structure. In addition, a strong 1.5 /spl mu/m photoluminescence emission was observed in this sample at room temperature, which indicates that it would be suitable for fiber-optic communication systems.
影响因子:
4
作者:
ARAKAWA, Y;SAKAKI, H
通讯作者:
SAKAKI, H