Highly efficient all‐nitride phosphor‐converted white light emitting diode
抄録
<jats:title>Abstract</jats:title><jats:p>The development and demonstration of a highly efficient warm‐white all‐nitride phosphor‐converted light emitting diode (pc‐LED) is presented utilizing a GaN based quantum well blue LED and two novel nitrogen containing luminescent materials, both of which are doped with Eu<jats:sup>2+</jats:sup>. For color conversion of the primary blue the nitridosilicates M<jats:sub>2</jats:sub>Si<jats:sub>5</jats:sub>N<jats:sub>8 </jats:sub>(orange‐red) and MSi<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>N<jats:sub>2</jats:sub> (yellow‐green), with M = alkaline earth, were employed, thus achieving a high luminous efficiency (25 lumen/W at 1 W input), excellent color quality (correlated color temperature CCT = 3200 K, general color rendering index <jats:italic>Ra</jats:italic> > 90) and the highest proven color stability of any pc‐LED obtained so far. Thus, these novel all‐nitride LEDs are superior to both incandescent and fluorescent lamps and may therefore become the next generation of general lighting sources. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p>
収録刊行物
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- physica status solidi (a)
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physica status solidi (a) 202 (9), 1727-1732, 2005-06
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360574095338836992
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- NII論文ID
- 30004443710
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- ISSN
- 18626319
- 18626300
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- データソース種別
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