National Taiwan University

Taiwan Semiconductor Manufacturing Comp. Ltd.

Chung-Hsin Lu

Chi-Ming Yang

Shu-Hao Huang

Chung-Hsien Wu

Szu-Chia Chien

Zhi-Liang Liu

Che-Yuan Yang

Yong-Jian Liu

A method of manufacturing a cerium dioxide powder is provided. The method includes mixing a cerium salt, an amine and solvent to form a mixed solution, in which the amine includes a secondary amine, a tertiary amine or a combination thereof, and the tertiary amine is selected from the group consisting of hexamethylenetetramine, triethylenediamine and a combination thereof. A solvothermal reaction of the mixed solution is performed to form the cerium dioxide powder. The cerium dioxide powder manufactured by the method is also provided herein.

Method of manufacturing cerium dioxide powder and cerium dioxide powder

A phosphor having a formula of TESiNTbLMis provided, in which T is Mg, Ca, Sr or Ba; E is Mg, Ca, Ba, Ti, Cu, Zn, B, Al, In, Sn, Sb, Bi, Ga, Y, La or Lu; L is Li, Na or K; M is Ce, Pr, Nd, Pm, Sm, Gd, Dy, Ho, Er, Tm, Yb or Mn; and 1.4&#x2264;x&#x2264;2.6, 0&#x2264;y&#x2264;0.5, 4.3&#x2264;z&#x2264;5.6, 7.4&#x2264;r&#x2264;9, 0.01&#x2264;a&#x2264;0.5, 0&#x2264;b&#x2264;0.5, 0&#x2264;c&#x2264;0.5, in which Tb ion is used as a luminescence center, and valence of the Tb ion is lower than 3+, and the phosphor is excited by an excitation light and has an emission band with a full width at half maximum greater than 50 nm. A method of forming the phosphor is also provided.

Phosphor, light emitting apparatus and method of forming phosphor

The present invention relates to an inorganic nitride-based fluorescent material, comprising an inorganic fluorescent host material represented by the following formula (I):(M)SiN:At&#x2003;&#x2003;(I)

Fluorescent material of light-emitting diode and method for preparing the same

The invention provides a fabrication method for a chalcopyrite powder. The fabrication method includes: (a) mixing a Group IB compound and a Group IIIA compound in a solvent; (b) drying or precipitating the solution of step (a) to obtain a precursor containing Group IB and Group IIIA elements; (c) mixing a solution or powder containing a Group VIA compound with the precursor; and (d) heating the mixture of step (c) to obtain the chalcopyrite powder.

Growing community of inventors

Taipei, Taiwan

Chung-Hsin Lu