2231–4202  (Print)                
2249–9970  (Online)             
Peer Reviewed and Refereed Journal

JPAST is a Peer Reviewed & Refereed biannual multidisciplinary journal starting from July 2011. Articles are invited for Dec 23 issue.
Volume 2, Issue 1, Pages 32-36, January 2012

Thermochromic Studies of MEH-PPV

Bhuvneshwar Prasad Gaur1,*,  Dr. A. K. Sharma1, Vaibhav Jain2 and Dr. Anil Govindan3

1,*Research Scholar Deptt. of Physics, D.A.V. (P.G.) College, Bulandshahr, India

1Head, Deptt. of Physics, D.A.V. (P.G.) College, Bulandshahr, India

2Assosiate prof. Deptt. of Physics, D.N. (P.G.) College, Gulaothi, Bulandshahr

3Associate prof. M.M.H. (P.G.) College, Ghaziabad


In this work we studied the optical properties of Poly [2-methoxy-5-(2’-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) using polymeric blends with polystyrene. The photoluminescence spectrum of (MEH-PPV) present three characteristic peaks correlating to aggregate electronic transition at 608, 674 and 742 nm at 10° K. An addition of Polystyrene in MEH-PPV films induces a red shift in the absorption spectrum and the photoluminescence spectrum presents a new peak at high energy centred at about 572 nm at 10° K. It is attributed to intra band transition between localized intraband states.

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