Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method

Fakhrurrazi Ashari, Josephine Liew Ying Chyi, Zainal Abidin Talib, W. Wahmood Wan Yunus, Leong Yong Jian, Lee Han Kee, Chang Fu Dee, Burhanuddin Yeop Majlis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Zinc selenide (ZnSe) quantum dots (QDs) have been synthesized through a hydrothermal method using ZnCl2 and Na2SeO3 powder as the precursor in the presence of oleylamine as capping agent. The hydrothermal route was conducted at a moderate temperature (150°C) for 8 h. Optical properties of ZnSe QDs were studied through ultraviolet-visible spectroscopy (UV-Vis) and photoluminescence (PL) while the structural properties of ZnSe QDs were characterized using transmission electron microscope (TEM). The photoluminescence (PL) characterization on ZnSe QDs showed that the QDs emit light in blue range region at around 440 nm with optical band gap energy at 3.68 e V. The TEM results showed that the average particle size is around 8.9 nm. It is a good candidates for optoelectronic devices such as light emitting diodes (LED).

Original languageEnglish
Pages (from-to)1191-1196
Number of pages6
JournalSains Malaysiana
Volume45
Issue number8
Publication statusPublished - 1 Aug 2016

Fingerprint

zinc selenides
quantum dots
electron microscopes
photoluminescence
optoelectronic devices
light emitting diodes
routes
optical properties
spectroscopy

Keywords

  • Absorption
  • Morphology
  • Optical band gap
  • Photoluminesnce

ASJC Scopus subject areas

  • General

Cite this

Ashari, F., Chyi, J. L. Y., Talib, Z. A., Yunus, W. W. W., Jian, L. Y., Kee, L. H., ... Yeop Majlis, B. (2016). Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method. Sains Malaysiana, 45(8), 1191-1196.

Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method. / Ashari, Fakhrurrazi; Chyi, Josephine Liew Ying; Talib, Zainal Abidin; Yunus, W. Wahmood Wan; Jian, Leong Yong; Kee, Lee Han; Dee, Chang Fu; Yeop Majlis, Burhanuddin.

In: Sains Malaysiana, Vol. 45, No. 8, 01.08.2016, p. 1191-1196.

Research output: Contribution to journalArticle

Ashari, F, Chyi, JLY, Talib, ZA, Yunus, WWW, Jian, LY, Kee, LH, Dee, CF & Yeop Majlis, B 2016, 'Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method', Sains Malaysiana, vol. 45, no. 8, pp. 1191-1196.
Ashari F, Chyi JLY, Talib ZA, Yunus WWW, Jian LY, Kee LH et al. Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method. Sains Malaysiana. 2016 Aug 1;45(8):1191-1196.
Ashari, Fakhrurrazi ; Chyi, Josephine Liew Ying ; Talib, Zainal Abidin ; Yunus, W. Wahmood Wan ; Jian, Leong Yong ; Kee, Lee Han ; Dee, Chang Fu ; Yeop Majlis, Burhanuddin. / Optical characterization of colloidal zinc selenide quantum dots prepared through hydrothermal method. In: Sains Malaysiana. 2016 ; Vol. 45, No. 8. pp. 1191-1196.
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