Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 8, Pages 5744-5748Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am500429c
Keywords
white LEDs; packaging; quantum dots; solid-state lighting
Funding
- Ministry of Education, Science, and Technology (MEST)
- National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation
- Strategic Key-Material Development body-Ministry of Knowledge Economy (MKE, Korea)
- Materials and Components Research and Development body-Ministry of Knowledge Economy (MKE, Korea)
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Application of quantum dots as a color converter in white light-emitting diodes (WLEDs) has been highly restrained because of its lower stability under the operating conditions of LEDs. The feasibility of using quantum dots in WLEDs has been studied and demonstrated by developing a non-conventional packing technique. Multiple core shell CuInS2/ZnS quantum dots were coated by silica, and the silica-coated quantum dots were dispersed in ethoxylated trimethylolpropane triacrylate to form a color conversion film. This along with phosphor in a glass plate made of Y3Al5O12:Ce3+ phosphor was stacked in different configurations, and its effect on color, rendering of WLEDs was studied. In addition, the configuration developed here protects the color converter from thermal strain and moisture.
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