Polymeric matrix with organic phosphor and manufactory thereof

摘要

A method for manufacturing a wavelength converting element (202, 301, 302, 303, 310, 312) the method comprising providing (100) a polymeric carrier material (200) having a first wavelength converting material (201) dispersed or molecular dissolved therein; the first wavelength converting material (201) is adapted to convert light of a first wavelength to light of a second wavelength, deforming (101) the polymeric carrier material at a first temperature at or above the glass transition temperature thereof such that at least part of the polymeric carrier material (200) is crystallized; and annealing (102) the polymeric carrier material(200) at a second temperature below the melting temperature thereof. Treatment of a polymeric material(200) according to the invention improves the stability and lifetime of a wavelength converting material (201) comprised in a such a treated polymeric material. A polymeric material (200) treated according to the invention may comprise polymeric molecules having a degree of crystalline being 10% by volume or more.

主权项

1. A method for manufacturing a wavelength converting element, said method comprising the steps of:
providing a polymeric carrier material having a first wavelength converting material dispersed or molecularly dissolved therein; said first wavelength converting material is adapted to convert light of a first wavelength to light of a second wavelength; deforming said polymeric carrier material at a first temperature at or above the glass transition temperature thereof such that at least part of said polymeric carrier material is crystallized; and annealing said polymeric carrier material at a second temperature below the melting temperature thereof.