Advanced Phosphor Group

STAFF

TAKEDA, Takashi; NAKANISHI, Takayuki（Staff Tabs）

AIM and GOAL

• Luminescent materials are one of key materials in solid state lighting and advanced flat panel displays that hold the promise of energy saving, environment friendliness and high quality. Our group concerns itself with both fundamental and industrial research and development in the field of advanced luminescent materials for energy and environment related applications.
• We are going to discover new highly efficient and reliable phosphors with promising luminescence properties and interesting crystal structures for those applications, by careful materials selection and synthetic strategies.

APPROACH

• New phosphors discovery : A single-particle-diagnosis approach is used to search for luminescent materials with new crystal structure and promising properties. New phosphors are developed even from mixture powder.
• Materials synthesis : Several synthetic techniques, such as gas-pressure sintering, hot-isostatic pressing, gas reduction and nitridation, solution synthesis are applied to prepare phosphor powders.

FIG 2 A single particle diagnosis approach for high-speed discovery of novel phosphors

FIG 2 New phosphors discovered by a single particle diagnosis approach (crystal structure and appearance)

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