Light-Polarizing PL Polymers

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Presentation transcript:

Light-Polarizing PL Polymers Orientation Mechanism

Linear Polarization of Light Introduction Linearly polarized light is usually generated by the use of dichroic polarizers Applications: Liquid crystal displays, sunglasses, optical filters Dichroic Polarizer: Uniaxially oriented absorbing dyes, linearly polarized absorption, efficiency < 45 % Photoluminescent (PL) Polarizer: Uniaxially oriented luminescent molecules, linearly polarized emission, Combination of polarizer and ‘active’ color filter

Light-Polarizing PL Polymers PL LCDs Science 1998, 279, 835. PCT IB98/00998 (1998)

Light-Polarizing PL Polymers PL LCDs Science 1998, 279, 835. WO 9901792 (1999)

Light-Polarizing PL Polymers Processing Adv. Mater. 1997, 9, 1035. J. Mater. Chem. 1999, 9, 2221.

Functional Multilayer Films Reflective Films Films with alternating layers of two polymers of different refractive indices are highly reflective. n1 n2 Components Composition # of layers Individual layer thickness (nm) PC/PMMA 50/50 4096 200

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