Shape-generated blue-shift in the photoluminescence spectra of hemispherical nanocrystals

✍ Scribed by W Jaskólski; J Planelles; G Peris

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 56 KB
• Volume: 4
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/s1386-9477(99)00012-0

✦ Synopsis

The blue-shift observed in the photoluminescence spectra of CdS quantum dots electrochemically deposited on a graphite substrate [M.A. Anderson, S. Gorger, R.M. Penner, J. Phys. Chem. 101 (1997) 5895] is explained in terms of quantum size and dot shape e ects. The line shape of the observed peak is also theoretically reproduced by assuming a gaussian distribution of the sizes of hemispherical dots with the average radius and standard deviation taken from the experiment.