InGaN-based single-chip multicolor light-emitting diodes

Takashi Azuhata; Takefumi Homma; Yoshikazu Ishikawa; Shige Fusa Chichibu

InGaN-based single-chip multicolor light-emitting diodes

Takashi Azuhata, Takefumi Homma, Yoshikazu Ishikawa, Shige Fusa Chichibu

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

Abstract

A light-emitting diode (LED) driving technique to realize single-chip multicolor LEDs was proposed. The technique utilizes one of the characteristics of InGaN-based visible LEDs, the current-induced spectral blueshift. By applying pulsed current, which had two pulses of different amplitude in a cycle, to an InGaN single-quantum-well green LED, the light of two wavelengths corresponding to bluegreen and green was emitted from the same point, and the emission color of the LED was controlled continuously from bluegreen to green by adjusting only the pulse widths.

Original language	English
Pages (from-to)	L497-L498
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	42
Issue number	5 B
Publication status	Published - 2003 May 15
Externally published	Yes

Keywords

InGaN
LED
Multicolor
Pulsed current
Single chip
Spectral blueshift

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

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title = "InGaN-based single-chip multicolor light-emitting diodes",

abstract = "A light-emitting diode (LED) driving technique to realize single-chip multicolor LEDs was proposed. The technique utilizes one of the characteristics of InGaN-based visible LEDs, the current-induced spectral blueshift. By applying pulsed current, which had two pulses of different amplitude in a cycle, to an InGaN single-quantum-well green LED, the light of two wavelengths corresponding to bluegreen and green was emitted from the same point, and the emission color of the LED was controlled continuously from bluegreen to green by adjusting only the pulse widths.",

keywords = "InGaN, LED, Multicolor, Pulsed current, Single chip, Spectral blueshift",

author = "Takashi Azuhata and Takefumi Homma and Yoshikazu Ishikawa and Chichibu, {Shige Fusa}",

year = "2003",

month = may,

day = "15",

language = "English",

volume = "42",

pages = "L497--L498",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "5 B",

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TY - JOUR

T1 - InGaN-based single-chip multicolor light-emitting diodes

AU - Azuhata, Takashi

AU - Homma, Takefumi

AU - Ishikawa, Yoshikazu

AU - Chichibu, Shige Fusa

PY - 2003/5/15

Y1 - 2003/5/15

N2 - A light-emitting diode (LED) driving technique to realize single-chip multicolor LEDs was proposed. The technique utilizes one of the characteristics of InGaN-based visible LEDs, the current-induced spectral blueshift. By applying pulsed current, which had two pulses of different amplitude in a cycle, to an InGaN single-quantum-well green LED, the light of two wavelengths corresponding to bluegreen and green was emitted from the same point, and the emission color of the LED was controlled continuously from bluegreen to green by adjusting only the pulse widths.

AB - A light-emitting diode (LED) driving technique to realize single-chip multicolor LEDs was proposed. The technique utilizes one of the characteristics of InGaN-based visible LEDs, the current-induced spectral blueshift. By applying pulsed current, which had two pulses of different amplitude in a cycle, to an InGaN single-quantum-well green LED, the light of two wavelengths corresponding to bluegreen and green was emitted from the same point, and the emission color of the LED was controlled continuously from bluegreen to green by adjusting only the pulse widths.

KW - InGaN

KW - LED

KW - Multicolor

KW - Pulsed current

KW - Single chip

KW - Spectral blueshift

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M3 - Article

AN - SCOPUS:0037704623

SN - 0021-4922

VL - 42

SP - L497-L498

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

IS - 5 B

ER -

InGaN-based single-chip multicolor light-emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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