Photoluminescence studies of the light-emitting species in new materials for polymer devices

Garry Rumbles; P. F. Miller; M. M. deSouza; I. R. Gould; H. Amer; D. L. Russell; Andrew B. Holmes; Stephen C. Moratti; Ifor D. W. Samuel

doi:10.1117/12.372701

17 December 1999 Photoluminescence studies of the light-emitting species in new materials for polymer devices

Garry Rumbles, P. F. Miller, M. M. deSouza, I. R. Gould, H. Amer, D. L. Russell, Andrew B. Holmes, Stephen C. Moratti, Ifor D. W. Samuel

Author Affiliations +

Proceedings Volume 3797, Organic Light-Emitting Materials and Devices III; (1999) https://doi.org/10.1117/12.372701
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The photophysics of a soluble, cynao-substituted poly (p- phenylene vinylene) and some related model compounds are compared using steady-state and time-resolved photoluminescence spectroscopy. The nature of the excited states in the model compounds are shown to differ markedly from the polymer as steric hindrance between the cyano group and an alkoxy group disrupts electron delocalization resulting in a twist in the molecular structure. In solution the polymer exhibits emission from both isolated chains, and from aggregates formed when the solution is allowed to equilibrate over a long period of time. The aggregate has its own distinct absorption and emission features and is assigned to a dimer- like species. When spun from the same solvent, thin films of the polymer exhibit the same emission features as the solution aggregates.

Citation Download Citation

Garry Rumbles, P. F. Miller, M. M. deSouza, I. R. Gould, H. Amer, D. L. Russell, Andrew B. Holmes, Stephen C. Moratti, and Ifor D. W. Samuel "Photoluminescence studies of the light-emitting species in new materials for polymer devices", Proc. SPIE 3797, Organic Light-Emitting Materials and Devices III, (17 December 1999); https://doi.org/10.1117/12.372701

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available