Decay of phosphorescence and delayed fluorescence of organic materials

Authors

  • A K Luka Department of Physics, Government Nagarjuna Science College, Raipur-492010 (C.G.), India.
  • R N Baghel School of Studies in Physics and Astrophysics , Pt. Ravishankar Shukla University, Raipur – 492010 (C.G.), India.
  • V K Chandra Department of Electrical and Electronics Engineering, Chhatrapati Shivaji Institute of Technology, Shivaji Nagar, Kolihapuri, Durg – 491001, India.

Keywords:

Decay, phosphorescence, fluorescence

Abstract

The Present paper reports the decay of phosphorescence and delayed fluorescence of organic material poly (2,7-(9,9-bis(2-ethyl-hexyle-flourene) (PF2/6). On the basis of the rate equation for the generation , recombination and diffusion of triplet excitons expressions are derived for the decay time of phosphorescence and delayed fluorescence of organic materials. The lifetime of phosphorescence is comes out to be twice the decay time of delayed fluorescence. The intensity of phosphorescence depends linearly on the intensity of the laser light used for exciton , however the intensity of light depends quadritically on the intensity of the laser light used for excitation. A compression is made between the theoretical and experimental results, in which a good agreement is found.  

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Author Biographies

A K Luka, Department of Physics, Government Nagarjuna Science College, Raipur-492010 (C.G.), India.

Department of Physics, Government  Nagarjuna Science College, Raipur-492010 (C.G.), India.

R N Baghel, School of Studies in Physics and Astrophysics , Pt. Ravishankar Shukla University, Raipur – 492010 (C.G.), India.

School of Studies in Physics and Astrophysics , Pt. Ravishankar Shukla University, Raipur – 492010 (C.G.), India.

V K Chandra, Department of Electrical and Electronics Engineering, Chhatrapati Shivaji Institute of Technology, Shivaji Nagar, Kolihapuri, Durg – 491001, India.

Department of Electrical and Electronics Engineering, Chhatrapati Shivaji Institute of Technology, Shivaji Nagar, Kolihapuri, Durg – 491001, India.

Published

19-10-2012

How to Cite

Luka, A. K., Baghel, R. N., & Chandra, V. K. (2012). Decay of phosphorescence and delayed fluorescence of organic materials. Recent Research in Science and Technology, 4(8). Retrieved from https://updatepublishing.com/journal/index.php/rrst/article/view/920

Issue

Volume 4, Issue 8 (2012)

Section

Articles