Chin. Phys. Lett.  2000, Vol. 17 Issue (10): 755-756    DOI:
Original Articles |
Optical Properties of Self-organized PbS Quantum Dot Superlattices
YE Chang-Hui1;YAO Lian-Zeng1;MU Ji-Mei1;SHI Gang1;ZHANG Li-De2
1Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026 2Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
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YE Chang-Hui, YAO Lian-Zeng, MU Ji-Mei et al  2000 Chin. Phys. Lett. 17 755-756
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Abstract Self-organization of PbS into quantum dot superlattices has been demonstrated for the first time, and hexaplanar colloidal crystals 1-10μm in size made from PbS quantum dots 3-6 nm in diameter are revealed in transmission electron microscope micrographs, and the inner structures of the superlattices can be seen by a high resolution transmission electron microscopy The optical absorption and photoluminescence spectra have been recorded. The ordering of the superlattices is crucial for the understanding of the fundamental properties of quantum-dot arrays, as well as for their optimal utilization in optical and electronic applications.
Keywords: 73.61.-r      78.40.Fy      81.05.Dz     
Published: 01 October 2000
PACS:  73.61.-r (Electrical properties of specific thin films)  
  78.40.Fy (Semiconductors)  
  81.05.Dz (II-VI semiconductors)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2000/V17/I10/0755
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