Enhancing light conversion efficiency of YAG:Ce phosphor substrate using nanoimprinted functional structures

Daihong Huh; Wonjoong Kim; Kwan Kim; Soomin Son; Jaemin Park; Sucheol Ju; Dongwoo Chae; Seungho Baek; Heon Lee

doi:10.1088/1361-6528/ab667e

Enhancing light conversion efficiency of YAG:Ce phosphor substrate using nanoimprinted functional structures

Daihong Huh, Wonjoong Kim, Kwan Kim, Soomin Son, Jaemin Park, Sucheol Ju, Dongwoo Chae, Seungho Baek, Heon Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Article number	144003
Journal	Nanotechnology
Volume	31
Issue number	14
DOIs	https://doi.org/10.1088/1361-6528/ab667e
Publication status	Published - 2020 Jan 21

Keywords

Functional pattern
Micro-cone
Moth-eye
Nanoimprint lithography
Phosphor

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/1361-6528/ab667e

Cite this

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title = "Enhancing light conversion efficiency of YAG:Ce phosphor substrate using nanoimprinted functional structures",

abstract = "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.",

keywords = "Functional pattern, Micro-cone, Moth-eye, Nanoimprint lithography, Phosphor",

author = "Daihong Huh and Wonjoong Kim and Kwan Kim and Soomin Son and Jaemin Park and Sucheol Ju and Dongwoo Chae and Seungho Baek and Heon Lee",

note = "Funding 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) Publisher Copyright: {\textcopyright} 2020 IOP Publishing Ltd.",

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doi = "10.1088/1361-6528/ab667e",

language = "English",

volume = "31",

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AU - Huh, Daihong

AU - Kim, Wonjoong

AU - Kim, Kwan

AU - Son, Soomin

AU - Park, Jaemin

AU - Ju, Sucheol

AU - Chae, Dongwoo

AU - Baek, Seungho

AU - Lee, Heon

N1 - Funding 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) Publisher Copyright: © 2020 IOP Publishing Ltd.

PY - 2020/1/21

Y1 - 2020/1/21

N2 - 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.

AB - 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.

KW - Functional pattern

KW - Micro-cone

KW - Moth-eye

KW - Nanoimprint lithography

KW - Phosphor

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DO - 10.1088/1361-6528/ab667e

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SN - 0957-4484

VL - 31

JO - Nanotechnology

JF - Nanotechnology

IS - 14

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ER -

Enhancing light conversion efficiency of YAG:Ce phosphor substrate using nanoimprinted functional structures

Abstract

Keywords

ASJC Scopus subject areas

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