Orientation of dopant molecules in thin polyfluorene films

Benjamin P. Lyons; Andrew P. Monkman

doi:10.1117/12.556814

10 November 2004 Orientation of dopant molecules in thin polyfluorene films

Proceedings Volume 5519, Organic Light-Emitting Materials and Devices VIII; (2004) https://doi.org/10.1117/12.556814
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Aligned and unaligned thin polyfluorene (PF) films doped with varying degrees of the dyes tetraphenyl porphyrin (TPP) and 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) have been investigated via polarised steady-state and time-resolved fluorescence anisotropy measurements. In the aligned films, the PF and DCM emission have dichroic ratios of approximately 10 and 4 respectively, while the TPP emission is completely depolarised. The polarised dopant emission in the case of the DCM is likely to arise from its linear shape and possible orientation parallel to the polymer chains, whereas the TPP is planar and exhibits no preferential orientation. These experiments show the possibility of polarised, red-shifted luminescence from polymer films.

Citation Download Citation

Benjamin P. Lyons and Andrew P. Monkman "Orientation of dopant molecules in thin polyfluorene films", Proc. SPIE 5519, Organic Light-Emitting Materials and Devices VIII, (10 November 2004); https://doi.org/10.1117/12.556814

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