Synthesis of CdTe-CdSe core-shell quantum dots with luminescence in the red

Norhayati Abu Sakar, Ali Umar Akrajas, Muhamad Mat Salleh, Muhammad Yahaya

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper reports on the synthesis and characterization of CdTe-CdSe core-shell quantum dots (QDs) with luminescent from 650 to 720 nm. The QDs were synthesized using a wet-chemical process at a moderate temperature (300 °C) following two-steps process of core and shell synthesis. The photoluminescence characterization on the QDs showed that the QDs emitted light in the range of red regime with quantum yield as high as 37%. Owing to their unique photoluminescence characteristics (high quantum yield and narrow spectrum), the QDs may find a potential application in a variety of applications such as LED, solar cell and bio-labeling.

Original languageEnglish
Pages (from-to)473-477
Number of pages5
JournalSains Malaysiana
Volume39
Issue number3
Publication statusPublished - Jun 2010

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Semiconductor quantum dots
Luminescence
Quantum yield
Photoluminescence
Labeling
Light emitting diodes
Solar cells
Temperature

Keywords

  • CdTe-CdSe core-shell
  • Narrow spectrum
  • Photoluminescence
  • Quantum dots
  • Quantum yields

ASJC Scopus subject areas

  • General

Cite this

Synthesis of CdTe-CdSe core-shell quantum dots with luminescence in the red. / Sakar, Norhayati Abu; Akrajas, Ali Umar; Mat Salleh, Muhamad; Yahaya, Muhammad.

In: Sains Malaysiana, Vol. 39, No. 3, 06.2010, p. 473-477.

Research output: Contribution to journalArticle

Sakar, NA, Akrajas, AU, Mat Salleh, M & Yahaya, M 2010, 'Synthesis of CdTe-CdSe core-shell quantum dots with luminescence in the red', Sains Malaysiana, vol. 39, no. 3, pp. 473-477.
Sakar, Norhayati Abu ; Akrajas, Ali Umar ; Mat Salleh, Muhamad ; Yahaya, Muhammad. / Synthesis of CdTe-CdSe core-shell quantum dots with luminescence in the red. In: Sains Malaysiana. 2010 ; Vol. 39, No. 3. pp. 473-477.
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