Site-controlled quantum dots grown in inverted pyramids for photonic crystal applications

被引：16
|
作者：
Pelucchi, E [1 ]
Watanabe, S [1 ]
Leifer, K [1 ]
Dwir, B [1 ]
Kapon, E [1 ]
机构：
[1] Swiss Fed Inst Technol, Lab Phys Nanostruct, Inst Quantum Elect & Photon, EPFL, CH-1015 Lausanne, Switzerland
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 23卷 / 3-4期
关键词：
organometallic chemical vapour deposition (OMCVD); pyramidal quantum dots; site controlled; photoluminescence; cathodoluminescence; photonic crystals;
D O I：
10.1016/j.physe.2004.02.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report on the growth and optical properties of various configurations of sub-micron pitch dense arrays of pyramidal quantum dots (QDs) grown by organometallic chemical vapour deposition on patterned substrates. We show that the effective growth rate of these QDs is influenced by the ratio between the free {1 1 1}B area and {1 1 1}A exposed facets surrounding them. This provides a powerful technique for engineering the energy level structure of ordered QD arrays by means of geometrical patterning of the growth template. Such technique should be particularly useful for applications in photonic crystals incorporating QDs with tailored absorption and/or emission properties. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：476 / 481
页数：6
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