Review-Phosphor Plates for High-Power LED Applications: Challenges and Opportunities toward Perfect Lightingopen access
- Authors
- Kim, Yoon Hwa; Viswanath, Noolu S. M.; Unithrattil, Sanjith; Kim, Ha Jun; Im, Won Bin
- Issue Date
- Jan-2018
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, v.7, no.1, pp.R3134 - R3147
- Indexed
- SCIE
SCOPUS
- Journal Title
- ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
- Volume
- 7
- Number
- 1
- Start Page
- R3134
- End Page
- R3147
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17842
- DOI
- 10.1149/2.0181801jss
- ISSN
- 2162-8769
- Abstract
- In the past decades, solid-state lighting based on phosphors as energy converters has been a fast-growing industry. Phosphorconverted white light-emitting diodes (pc-wLEDs) enable high-power applications and miniaturization; for this, the phosphor must have good stability and high efficiency. In order to satisfy this demand, phosphor plates have been proposed instead of conventional organic-based phosphor binders. In this review, such phosphor plates are categorized according to their synthesis methods, and the advantages and disadvantages of each category are detailed. In addition, we describe the major aspects of phosphor plates that require improvement for applications in high-power devices. For the fabrication of high-power LEDs, the phosphor configuration, color purity, porosity, and particle size of glass powders are key properties to enhance the luminescence efficiency and reduce the generation of heat inside wLED packages, thereby improving thermal stability. (c) The Author(s) 2017. Published by ECS. All rights reserved.
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