Synthesis of monodisperse CdSe QDs using controlled growth temperatures

Mohammad Hafizuddin Jumali, Razinah Rahmat Noor, Muhammad Yahaya, Muhamad Mat Salleh, Ali Umar Akrajas

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

2 Citations (Scopus)

Abstract

This paper reports on the effect of growth temperatures on optical properties of monodisperse CdSe QDs synthesized via wet chemical method. The growth temperature was varied from 260 - 310 °C while growth period was fixed at 60 s. The resulting colloidal was in strong quantum confinement regime and having yield as high as 53%. As the growth temperature increased, the monodispersed CdSe QDs with diameter in the range of 3-7 nm were obtained. Both absorption and PL spectra of the QDs revealed a strong red-shift with the increment of growth temperature. Thus, the size of QDs was enlarged with increment of the wavelength from both the spectra. Consequently, the energy gap of resulting QDs can be tuned by tuning the size of QDs. More importantly, the narrow widths of the PL emissions with different colors make these colloidal to be a potential candidate for different optical and optoelectronic devices.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages485-488
Number of pages4
Volume364
DOIs
Publication statusPublished - 2012
Event2011 International Conference on Nanomaterials, Synthesis and Characterization, ICNSC2011 - Selangor
Duration: 4 Jul 20115 Jul 2011

Publication series

NameAdvanced Materials Research
Volume364
ISSN (Print)10226680

Other

Other2011 International Conference on Nanomaterials, Synthesis and Characterization, ICNSC2011
CitySelangor
Period4/7/115/7/11

Fingerprint

Growth temperature
Quantum confinement
Optical devices
Optoelectronic devices
Energy gap
Optical properties
Tuning
Color
Wavelength

Keywords

  • Absorption peak
  • CdSe quantum dots
  • Energy gap
  • Photoluminescence
  • Size distribution

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jumali, M. H., Noor, R. R., Yahaya, M., Mat Salleh, M., & Akrajas, A. U. (2012). Synthesis of monodisperse CdSe QDs using controlled growth temperatures. In Advanced Materials Research (Vol. 364, pp. 485-488). (Advanced Materials Research; Vol. 364). https://doi.org/10.4028/www.scientific.net/AMR.364.485

Synthesis of monodisperse CdSe QDs using controlled growth temperatures. / Jumali, Mohammad Hafizuddin; Noor, Razinah Rahmat; Yahaya, Muhammad; Mat Salleh, Muhamad; Akrajas, Ali Umar.

Advanced Materials Research. Vol. 364 2012. p. 485-488 (Advanced Materials Research; Vol. 364).

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

Jumali, MH, Noor, RR, Yahaya, M, Mat Salleh, M & Akrajas, AU 2012, Synthesis of monodisperse CdSe QDs using controlled growth temperatures. in Advanced Materials Research. vol. 364, Advanced Materials Research, vol. 364, pp. 485-488, 2011 International Conference on Nanomaterials, Synthesis and Characterization, ICNSC2011, Selangor, 4/7/11. https://doi.org/10.4028/www.scientific.net/AMR.364.485
Jumali MH, Noor RR, Yahaya M, Mat Salleh M, Akrajas AU. Synthesis of monodisperse CdSe QDs using controlled growth temperatures. In Advanced Materials Research. Vol. 364. 2012. p. 485-488. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.364.485
Jumali, Mohammad Hafizuddin ; Noor, Razinah Rahmat ; Yahaya, Muhammad ; Mat Salleh, Muhamad ; Akrajas, Ali Umar. / Synthesis of monodisperse CdSe QDs using controlled growth temperatures. Advanced Materials Research. Vol. 364 2012. pp. 485-488 (Advanced Materials Research).
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