A phosphor substrate converts a moderate amount of blue light to green light to produce white light. In this study, we have successfully demonstrated the enhancement of the light extraction efficiency of YAG:Ce phosphor substrate using a simple imprint process. Spin-on-glass materials were used to fabricate a pattern on the surface of a phosphor substrate, and nano- and micro-scale patterns were formed to test the performance according to the size of pattern. The light extraction efficiency of the phosphor substrate with a micro-cone pattern increased by 33.2% compared with the flat phosphor substrate.
Bibliographical noteFunding Information:
This work was supported by the Materials and Components Technology Development Program program of MOTIE/ KEIT. (10080352, Development of polymer-based adhesive light concentration film for solar cell with 85% light transmittance, 1 m2 area) and Technology Innovation Program (N0002310) funded by the Ministry of Trade, Industry and Energy (MOTIE, Korea)
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- Functional pattern
- Nanoimprint lithography
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering