![](/images/graphics-bg.png)
Morphological and optical properties of CdS quantum dots synthesized with different pH values
Other Title(s)
الخواص المورفولوجية و البصرية لكبريتيد الكادميوم نقاط كمية المحضرة بقيم مختلفة من الآس الهيدروجيني
Joint Authors
Kazim, Aqil Mahdi
Salih, Wasan Rashid
Source
Issue
Vol. 58, Issue 3A (30 Sep. 2017), pp.1207-1213, 7 p.
Publisher
University of Baghdad College of Science
Publication Date
2017-09-30
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Abstract EN
Quantum dots (QDs) of cadmium sulfide (CdS) was prepared by chemical reaction method with different potential of hydrogen (pH) values.
The morphological and optical measurements of cadmium sulfide QDs were considered by atomic force microscopy (AFM), ultraviolet-visible (UV-VIS.) and photoluminescence (PL) spectrometer respectively.
The energy gap (Eg) was calculated from photoluminescence spectra were found to be about 2.7, 2.6 and 2.5 eV at pH values 8, 10 and 12 respectively for CdS QDs.
The decreasing of energy gaps is rises from the effect the pH solution increases, which in turn leads to the shifted of the PL spectrum toward red shifted, which creates the energy bands at surface states are shallow bands.
Fabrication of EL-device from CdS QDs with pH=8 was effective in efficient white light generation and intensity
American Psychological Association (APA)
Kazim, Aqil Mahdi& Salih, Wasan Rashid. 2017. Morphological and optical properties of CdS quantum dots synthesized with different pH values. Iraqi Journal of Science،Vol. 58, no. 3A, pp.1207-1213.
https://search.emarefa.net/detail/BIM-759754
Modern Language Association (MLA)
Kazim, Aqil Mahdi& Salih, Wasan Rashid. Morphological and optical properties of CdS quantum dots synthesized with different pH values. Iraqi Journal of Science Vol. 58, no. 3A (2017), pp.1207-1213.
https://search.emarefa.net/detail/BIM-759754
American Medical Association (AMA)
Kazim, Aqil Mahdi& Salih, Wasan Rashid. Morphological and optical properties of CdS quantum dots synthesized with different pH values. Iraqi Journal of Science. 2017. Vol. 58, no. 3A, pp.1207-1213.
https://search.emarefa.net/detail/BIM-759754
Data Type
Journal Articles
Language
English
Notes
Text in English ; abstracts in English and Arabic.
Record ID
BIM-759754