High output power density from GaN-based two-dimensional nanorod light-emitting diode arrays

Ya Ju Lee; Shawn Yu Lin; Ching Hua Chiu; Tien Chang Lu; Hao Chung Kuo; Shing Chung Wang; Sameer Chhajed; Jong Kyu Kim; E. Fred Schubert

doi:10.1063/1.3119192

High output power density from GaN-based two-dimensional nanorod light-emitting diode arrays

Ya Ju Lee^*, Shawn Yu Lin, Ching Hua Chiu, Tien Chang Lu, Hao Chung Kuo, Shing Chung Wang, Sameer Chhajed, Jong Kyu Kim, E. Fred Schubert

^*Corresponding author for this work

Graduate Institute of Electro-Optical Engineering

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

44 Citations (Scopus)

Abstract

Here we propose and realize a scheme for making a direct contact to a two-dimensional nanorod light-emitting diode (LED) array using the oblique-angle deposition approach. And, more importantly, we demonstrate highly efficient electrical carrier injection into the nanorods. As a result, we show that at a 20 mA dc current injection, the light output power density of our nanorod LED array is 3700 mW cm^-2. More general, this contact scheme will pave the ways for making direct contacts to other kinds of nanoscale optoelectronic devices.

Original language	English
Article number	141111
Journal	Applied Physics Letters
Volume	94
Issue number	14
DOIs	https://doi.org/10.1063/1.3119192
Publication status	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3119192

Cite this

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title = "High output power density from GaN-based two-dimensional nanorod light-emitting diode arrays",

abstract = "Here we propose and realize a scheme for making a direct contact to a two-dimensional nanorod light-emitting diode (LED) array using the oblique-angle deposition approach. And, more importantly, we demonstrate highly efficient electrical carrier injection into the nanorods. As a result, we show that at a 20 mA dc current injection, the light output power density of our nanorod LED array is 3700 mW cm-2. More general, this contact scheme will pave the ways for making direct contacts to other kinds of nanoscale optoelectronic devices.",

author = "Lee, {Ya Ju} and Lin, {Shawn Yu} and Chiu, {Ching Hua} and Lu, {Tien Chang} and Kuo, {Hao Chung} and Wang, {Shing Chung} and Sameer Chhajed and Kim, {Jong Kyu} and Schubert, {E. Fred}",

note = "Funding Information: S.Y.L. gratefully acknowledges financial support from DOE-BES under Grant No. DE-FG02-06ER46347 and partial support from Sandia National Laboratories. This work was supported in part by the National Science Council of Republic of China (ROC) in Taiwan.",

year = "2009",

doi = "10.1063/1.3119192",

language = "English",

volume = "94",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - High output power density from GaN-based two-dimensional nanorod light-emitting diode arrays

AU - Lee, Ya Ju

AU - Lin, Shawn Yu

AU - Chiu, Ching Hua

AU - Lu, Tien Chang

AU - Kuo, Hao Chung

AU - Wang, Shing Chung

AU - Chhajed, Sameer

AU - Kim, Jong Kyu

AU - Schubert, E. Fred

N1 - Funding Information: S.Y.L. gratefully acknowledges financial support from DOE-BES under Grant No. DE-FG02-06ER46347 and partial support from Sandia National Laboratories. This work was supported in part by the National Science Council of Republic of China (ROC) in Taiwan.

PY - 2009

Y1 - 2009

N2 - Here we propose and realize a scheme for making a direct contact to a two-dimensional nanorod light-emitting diode (LED) array using the oblique-angle deposition approach. And, more importantly, we demonstrate highly efficient electrical carrier injection into the nanorods. As a result, we show that at a 20 mA dc current injection, the light output power density of our nanorod LED array is 3700 mW cm-2. More general, this contact scheme will pave the ways for making direct contacts to other kinds of nanoscale optoelectronic devices.

AB - Here we propose and realize a scheme for making a direct contact to a two-dimensional nanorod light-emitting diode (LED) array using the oblique-angle deposition approach. And, more importantly, we demonstrate highly efficient electrical carrier injection into the nanorods. As a result, we show that at a 20 mA dc current injection, the light output power density of our nanorod LED array is 3700 mW cm-2. More general, this contact scheme will pave the ways for making direct contacts to other kinds of nanoscale optoelectronic devices.

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High output power density from GaN-based two-dimensional nanorod light-emitting diode arrays

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