Fluorescence properties of hybrid CdTe quantum dots-porphyrins thin films in organic vapors

Norhayati Abu Bakar, Aidhia Rahmi, Ali Umar Akrajas, Muhamad Mat Salleh, Muhammad Yahaya

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

Abstract

This paper reports a study on the fluorescence properties of thin films utilizing quantum dots (QDs) of cadmium telluride (CdTe) hybridized with porphyrins (tetraphenyl porphine cobalt (II)) (CoTTP) thin films under exposure of various gases. The high yellow luminescence QDs were synthesized using a wet-chemical process at moderate temperature (350°C). CdTe QDs, CoTTP porphyrin and CdTe-CoTTP hybrid thin films were deposited onto the surface of fiber optic probe and dried in the ambient temperature. The quantum dots showed their ability to activate photo luminescence property of porphyrin molecules in the hybrid thin film of quantum dots-porphyrin. The fluorescence properties of thin films were studied by observing the change of photoluminescence (PL) spectra of thin films in nitrogen (N2) and after exposing in various organic gases. The PL quenching effect was occurred for both PL peaks for QDs and CoTTP in the hybrid thin film.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages64-67
Number of pages4
Volume1284
DOIs
Publication statusPublished - 2010
Event3rd Nanoscience and Nanotechnology Symposium 2010, NNSB2010 - Bandung
Duration: 16 Jun 201016 Jun 2010

Other

Other3rd Nanoscience and Nanotechnology Symposium 2010, NNSB2010
CityBandung
Period16/6/1016/6/10

Fingerprint

cadmium tellurides
porphyrins
quantum dots
vapors
fluorescence
thin films
photoluminescence
gases
ambient temperature
fiber optics
cobalt
quenching
luminescence
nitrogen
probes
molecules

Keywords

  • cadmium telluride
  • hybrid quantum dots thin films
  • photoluminescence in organic vapors
  • porphyrins
  • Synthesis quantum dots

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fluorescence properties of hybrid CdTe quantum dots-porphyrins thin films in organic vapors. / Bakar, Norhayati Abu; Rahmi, Aidhia; Akrajas, Ali Umar; Mat Salleh, Muhamad; Yahaya, Muhammad.

AIP Conference Proceedings. Vol. 1284 2010. p. 64-67.

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

Bakar, NA, Rahmi, A, Akrajas, AU, Mat Salleh, M & Yahaya, M 2010, Fluorescence properties of hybrid CdTe quantum dots-porphyrins thin films in organic vapors. in AIP Conference Proceedings. vol. 1284, pp. 64-67, 3rd Nanoscience and Nanotechnology Symposium 2010, NNSB2010, Bandung, 16/6/10. https://doi.org/10.1063/1.3515564
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