Effect of polysiloxane encapsulation material compositions on emission behaviour and stabilities of perylene dyes.

ABSTRACT: The replacement of inorganic conversion dyes with their organic counterparts in LED application bears a large potential for the reduction of rare earth elements in these devices. A major challenge of this substitution is the emission and stability of organic dyes, which is more sensitive to the composition of the polymer matrix they are embedded in than inorganic systems. In this study we systematically investigated the influence of the composition and structure of a low refractive index (LRI) polydimethylsiloxane (PDMS) and a high refractive index (HRI) polymethylphenysiloxane (PMPS) based encapsulation material on the optical properties of two different embedded perylene diimide dyes. Both dyes show low solubility in the PDMS matrix, which also fosters the heat- or light-induced degradat

SUBMITTER: Steinbruck N 

PROVIDER: S-EPMC9080585 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature