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Probing of the quantum dot size distribution in CdTe‐doped glasses by photoluminescence excitation spectroscopy

 

作者: C. R. M. de Oliveira,   A. M. de Paula,   F. O. Plentz Filho,   J. A. Medeiros Neto,   L. C. Barbosa,   O. L. Alves,   E. A. Menezes,   J. M. M. Rios,   H. L. Fragnito,   C. H. Brito Cruz,   C. L. Cesar,  

 

期刊: Applied Physics Letters  （AIP Available online 1995）
卷期: Volume 66, issue 4  

页码: 439-441

 

ISSN:0003-6951

 

年代: 1995

 

DOI:10.1063/1.114049

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We studied confinement effects in CdTe quantum dots by means of photoluminescence excitation spectroscopy. We show that by changing the detection energy we can resolve the spectrum of quantum dots of different sizes inside their much broader size distribution in CdTe‐doped glass. The spectra obtained show several well‐resolved lines. There is excellent agreement between the photoluminescence excitation spectra peak energies and calculations of the confined energy transitions based on a modified multiband envelope function model. ©1995 American Institute of Physics.

 

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