| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7906369 | Optical Materials | 2018 | 5 Pages |
Abstract
Cerium-doped yttrium aluminum garnet (YAG: Ce) is used to convert blue light which is emitted from InGaN-based LED chip for white light. In this study, the phosphor paste was prepared using monodispersed spherical YAG: Ce phosphor synthesized by co-precipitation based on one-pot synthesis. Also, orange-red emitting Sr2Si5N8:Eu2+ (SSN: Eu) phosphor was added to confirm the change in optical characteristics. Alpha terpineol was used as a paste solvent because it enabled easy screen-printing. Phosphor paste films for optoelectronic devices were prepared by coating on a glass substrate using a doctor blade method. We compared the conversion efficacy, color rendering index (CRI), and correlated color temperature (CCT) of YAG: Ce which is added to various amounts of SSN: Eu. We measured scanning electron microscopy (SEM) images to confirm the difference of porosity between, depending on binder addition.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Seok Bin Kwon, Seong Guk Jeong, Seung Hee Choi, Jung Hyeon Yoo, Woo Seok Yang, Jin Sun Yoo, Young Hyun Song, Dae Ho Yoon,