Horizontally assembled green InGaN nanorod LEDs: Scalable polarized surface emitting LEDs using electric-field assisted assembly

Hoo Keun Park; Seong Woong Yoon; Yun Jae Eo; Won Woo Chung; Gang Yeol Yoo; Ji Hye Oh; Keyong Nam Lee; Woong Kim; Young Rag Do

doi:10.1038/srep28312

Horizontally assembled green InGaN nanorod LEDs: Scalable polarized surface emitting LEDs using electric-field assisted assembly

Hoo Keun Park, Seong Woong Yoon, Yun Jae Eo, Won Woo Chung, Gang Yeol Yoo, Ji Hye Oh, Keyong Nam Lee, Woong Kim, Young Rag Do

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

42 Citations (Scopus)

Abstract

In this study, we report the concerted fabrication process, which is easy to transform the size of active emitting area and produce polarized surface light, using the electric-field-assisted assembly for horizontally assembled many tiny nanorod LEDs between two metal electrodes. We fabricate the millions of individually separated 1D nanorod LEDs from 2D nanorod arrays using nanosphere lithography, etching and cutting process of InGaN/GaN LED structure on a flat sapphire substrate. The horizontally assembled InGaN-based nanorods LED device shows bright (∼2,130 cd/m²) and uniform polarized (polarization ratio, p = ∼0.61) green emissions from large area (0.7 cm × 0.6 cm) planar surface. The realization of a horizontally assembled nanorod LED device can prove the concept of an innovative idea to fabricate formable and scalable polarized surface LED lighting.

Original language	English
Article number	28312
Journal	Scientific reports
Volume	6
DOIs	https://doi.org/10.1038/srep28312
Publication status	Published - 2016 Jun 21

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (NRF) of Korea grant funded by the Korea government (Ministry of Science, ICT and Future Planning, MSIP) (No. 2011-0017449) and the Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20143030011530).

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title = "Horizontally assembled green InGaN nanorod LEDs: Scalable polarized surface emitting LEDs using electric-field assisted assembly",

abstract = "In this study, we report the concerted fabrication process, which is easy to transform the size of active emitting area and produce polarized surface light, using the electric-field-assisted assembly for horizontally assembled many tiny nanorod LEDs between two metal electrodes. We fabricate the millions of individually separated 1D nanorod LEDs from 2D nanorod arrays using nanosphere lithography, etching and cutting process of InGaN/GaN LED structure on a flat sapphire substrate. The horizontally assembled InGaN-based nanorods LED device shows bright (∼2,130 cd/m2) and uniform polarized (polarization ratio, p = ∼0.61) green emissions from large area (0.7 cm × 0.6 cm) planar surface. The realization of a horizontally assembled nanorod LED device can prove the concept of an innovative idea to fabricate formable and scalable polarized surface LED lighting.",

author = "Park, {Hoo Keun} and Yoon, {Seong Woong} and Eo, {Yun Jae} and Chung, {Won Woo} and Yoo, {Gang Yeol} and Oh, {Ji Hye} and Lee, {Keyong Nam} and Woong Kim and Do, {Young Rag}",

note = "Funding Information: This work was supported by the National Research Foundation (NRF) of Korea grant funded by the Korea government (Ministry of Science, ICT and Future Planning, MSIP) (No. 2011-0017449) and the Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20143030011530).",

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doi = "10.1038/srep28312",

language = "English",

volume = "6",

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AU - Park, Hoo Keun

AU - Yoon, Seong Woong

AU - Eo, Yun Jae

AU - Chung, Won Woo

AU - Yoo, Gang Yeol

AU - Oh, Ji Hye

AU - Lee, Keyong Nam

AU - Kim, Woong

AU - Do, Young Rag

N1 - Funding Information: This work was supported by the National Research Foundation (NRF) of Korea grant funded by the Korea government (Ministry of Science, ICT and Future Planning, MSIP) (No. 2011-0017449) and the Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (No. 20143030011530).

PY - 2016/6/21

Y1 - 2016/6/21

N2 - In this study, we report the concerted fabrication process, which is easy to transform the size of active emitting area and produce polarized surface light, using the electric-field-assisted assembly for horizontally assembled many tiny nanorod LEDs between two metal electrodes. We fabricate the millions of individually separated 1D nanorod LEDs from 2D nanorod arrays using nanosphere lithography, etching and cutting process of InGaN/GaN LED structure on a flat sapphire substrate. The horizontally assembled InGaN-based nanorods LED device shows bright (∼2,130 cd/m2) and uniform polarized (polarization ratio, p = ∼0.61) green emissions from large area (0.7 cm × 0.6 cm) planar surface. The realization of a horizontally assembled nanorod LED device can prove the concept of an innovative idea to fabricate formable and scalable polarized surface LED lighting.

AB - In this study, we report the concerted fabrication process, which is easy to transform the size of active emitting area and produce polarized surface light, using the electric-field-assisted assembly for horizontally assembled many tiny nanorod LEDs between two metal electrodes. We fabricate the millions of individually separated 1D nanorod LEDs from 2D nanorod arrays using nanosphere lithography, etching and cutting process of InGaN/GaN LED structure on a flat sapphire substrate. The horizontally assembled InGaN-based nanorods LED device shows bright (∼2,130 cd/m2) and uniform polarized (polarization ratio, p = ∼0.61) green emissions from large area (0.7 cm × 0.6 cm) planar surface. The realization of a horizontally assembled nanorod LED device can prove the concept of an innovative idea to fabricate formable and scalable polarized surface LED lighting.

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Horizontally assembled green InGaN nanorod LEDs: Scalable polarized surface emitting LEDs using electric-field assisted assembly

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