Volume 8, No. 3, May 2019

General Information

  • ISSN: 2278-0149 (Online)
  • Abbreviated Title:  Int. J. Mech. Eng. Robot. Res.  
  • Editor-in-Chief: ​Prof Richard (Chunhui) Yang, Western Sydney University, Australia
  • Associate Editor: Prof. B.V. Appa Rao, Andhra University; Prof. Ian R. McAndrew, Capitol Technology University, USA
  • Managing Editor: Murali Krishna. B
  • DOI: 10.18178/ijmerr
  • Abstracting/Indexing: Scopus (since 2016), CNKI, Google Scholar, Crossref, etc.
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International Journal of Mechanical Engineering and Robotics Research
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The Influence of the Variable Excitation Wavelength on the Spectral Characteristics of the Light Generated by the Luminescent Layer Consisting of YAG: Ce Phosphor and PDMS

Jan Jargus 1, Jan Nedoma 1, Marcel Fajkus 1, Jan Vitasek 1, Radek Martinek 2, and Vladimir Vasinek 1
1. Department of Telecommunications, Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, Ostrava, Czech Republic
2. Department of Cybernetics and Biomedical Engineering, Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, Ostrava, Czech Republic

Abstract—In this work, we explored the changes in the spectral characteristics of the light generated by the luminescent layer containing YAG: Ce phosphor and polydimethylsiloxane (PDMS) in relation to a variable excitation wavelength of the light emitted from the monochromator. We created two types of test samples with a defined thickness of the luminescent layer and with a defined weight ratio of phosphor (cerium-doped yttrium aluminum garnet - YAG:Ce) in PDMS (Dowsil SE 1740). The correlated color temperature (CCT) of the first (second) type of samples ranged from 4387 to 6905 K (from 4923 to 8213 K) for excitation wavelengths of 425 - 445 nm (435 - 460 nm), respectively. The results revealed that this method can be used to design white light sources with an adjustable CCT. 

Index Terms—CCT, PDMS, Spectral characteristic, YAG: Ce phosphor

Cite: Samina Noor and Hassan M. Soliman, "Experimental Investigation of Phase-Separation Effectiveness of Combined Impacting Tee Junctions," International Journal of Mechanical Engineering and Robotics Research, Vol. 8, No. 3, pp. 361-367, May 2019. DOI: 10.18178/ijmerr.8.3.361-367