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Mesoporous Aluminum Hydroxide Synthesized by a Single‐Source Precursor‐Decomposition Approach as a High‐Quantum‐Yield Blue Phosphor for UV‐Pumped White‐Light‐Emitting Diodes
Author(s) -
Chen Bingkun,
Susha Andrei S.,
Reckmeier Claas J.,
Kershaw Stephen V.,
Wang Yongtian,
Zou Bingsuo,
Zhong Haizheng,
Rogach Andrey L.
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201604284
Subject(s) - phosphor , materials science , quantum yield , light emitting diode , luminous efficacy , hydroxide , photoluminescence , optoelectronics , diode , nanotechnology , optics , chemical engineering , fluorescence , physics , layer (electronics) , engineering
Strongly emissive (photoluminescence quantum yield up to 65%), thermally stable aluminum hydroxide blue phosphors are synthesized by a single‐source precursor‐decomposition approach. Blue‐emitting UV‐pumped light‐emitting diodes (LEDs) based on the aluminum hydroxide phosphor reach luminous efficiency of 27.5 lm W −1 , while UV‐white‐LEDs integrating blue‐emitting aluminum hydroxide and red‐emitting CuInS 2 nanocrystals achieve high color‐rendering‐index values of 94.3 and luminous efficiency of 23.5 lm W −1 .