Highly red luminescence properties from ternary ZnCdTe quantum dots

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This paper reports the synthesis of ternary ZnCdTe quantum dots (QD) system with highly luminescent in the red region. The ternary QD system was prepared by quick injection of trioctylphosphine telluride (TOPTe) into a reactor that contains a hot mixed cadmium and zinc precursors, trioctylphosphine oxide and oleic acid at temperature of as low as 300°C. After the injection of TOPTe, the reaction was left undisturbed for a period of time to facilitate the growth of QDs and then quenched the reaction at a certain period of time. Photoluminescence analysis found that the ZnCdTe QDs exhibited highly luminescent properties with the quantum yield was calculated as high as ca. 60%. The emission wavelength was found to be in the range of 640 to 675 nm. It was also found that the QDs showed a relatively narrow spectral width, namely ca. 28 nm, reflecting a narrow quantum dots size distribution. Owing to their interesting photoluminescence properties, the ternary ZnCdTe QDs should find an extensive used in light-emitting diode, solar cell, laser and biolabelling.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7493
DOIs
Publication statusPublished - 2009
Event2nd International Conference on Smart Materials and Nanotechnology in Engineering - Weihai
Duration: 8 Jul 200911 Jul 2009

Other

Other2nd International Conference on Smart Materials and Nanotechnology in Engineering
CityWeihai
Period8/7/0911/7/09

Fingerprint

Luminescence
Quantum Dots
Ternary
Semiconductor quantum dots
tellurides
quantum dots
Photoluminescence
luminescence
Period of time
Injection
injection
photoluminescence
oleic acid
Oleic acid
Quantum yield
Solar Cells
Zinc
Oleic Acid
Cadmium
Diode

Keywords

  • Luminescence
  • Quantum yield
  • Ternary quantum dots

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Abu Bakar, N., Akrajas, A. U., Mat Salleh, M., Yahaya, M., & Yeop Majlis, B. (2009). Highly red luminescence properties from ternary ZnCdTe quantum dots. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7493). [74935W] https://doi.org/10.1117/12.839808

Highly red luminescence properties from ternary ZnCdTe quantum dots. / Abu Bakar, Norhayati; Akrajas, Ali Umar; Mat Salleh, Muhamad; Yahaya, Muhammad; Yeop Majlis, Burhanuddin.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7493 2009. 74935W.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abu Bakar, N, Akrajas, AU, Mat Salleh, M, Yahaya, M & Yeop Majlis, B 2009, Highly red luminescence properties from ternary ZnCdTe quantum dots. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7493, 74935W, 2nd International Conference on Smart Materials and Nanotechnology in Engineering, Weihai, 8/7/09. https://doi.org/10.1117/12.839808
Abu Bakar N, Akrajas AU, Mat Salleh M, Yahaya M, Yeop Majlis B. Highly red luminescence properties from ternary ZnCdTe quantum dots. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7493. 2009. 74935W https://doi.org/10.1117/12.839808
Abu Bakar, Norhayati ; Akrajas, Ali Umar ; Mat Salleh, Muhamad ; Yahaya, Muhammad ; Yeop Majlis, Burhanuddin. / Highly red luminescence properties from ternary ZnCdTe quantum dots. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7493 2009.
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