Fluorescent and nonlinear optical features of CdTe quantum dots

Ali Umar Akrajas, Ali H. Reshak, M. Oyama, K. J. Plucinski

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The study of photoluminescence and nonlinear optical properties of red (emitted at 650 nm), yellow (emitted at 570 nm) and green (emitted at 530 nm) CdTe quantum dots (QD) spin coated on quartz substrate that had been prepared by changing the ratio between octadecylphosphonic acid and octadecence within 0.1:1-1:1 was carried out. Spectral width of the emission spectra indicates an enhancement with the increasing of QDs sizes, namely ca. 25, 28 and 50 nm for the QD size of 2.5, 3.5 and 5 nm, correspondingly. The entire QDs samples feature a spherical morphology with a relatively narrow size distribution. The optical second harmonic generation (SHG) stimulated by coherent bicolor treatment at 1,540 nm and its second harmonic generation was studied versus the laser light power density and incident angle.

Original languageEnglish
Pages (from-to)546-550
Number of pages5
JournalJournal of Materials Science: Materials in Electronics
Volume23
Issue number2
DOIs
Publication statusPublished - Feb 2012

Fingerprint

Harmonic generation
Semiconductor quantum dots
harmonic generations
quantum dots
Quartz
radiant flux density
Photoluminescence
emission spectra
quartz
Optical properties
photoluminescence
optical properties
acids
Acids
Lasers
augmentation
Substrates
lasers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Fluorescent and nonlinear optical features of CdTe quantum dots. / Akrajas, Ali Umar; Reshak, Ali H.; Oyama, M.; Plucinski, K. J.

In: Journal of Materials Science: Materials in Electronics, Vol. 23, No. 2, 02.2012, p. 546-550.

Research output: Contribution to journalArticle

Akrajas, Ali Umar ; Reshak, Ali H. ; Oyama, M. ; Plucinski, K. J. / Fluorescent and nonlinear optical features of CdTe quantum dots. In: Journal of Materials Science: Materials in Electronics. 2012 ; Vol. 23, No. 2. pp. 546-550.
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