Lg Display Co., Ltd.

Korea University Research and Business Foundation

Su-Hwan Go

Chiwan Kim

Yong-Su Ham

Yuseon Kho

Yongwoo Lee

Sahn Nahm

Seunghyun Sung

Jae-Min Eum

Ho-Sung Shin

Dae-Su Kim

Compositions are disclosed that comprise a piezoelectric material according to Chemical Formula 1: (1−y)(NaK)(Nb,Sb)−ySrZrO+n mol % CuO, wherein 0.01≤y≤0.10, 0.4≤a≤0.6, 0≤x≤0.06, and 0.5≤n≤1.5. The compositions can further comprise a first material, and a second material surrounded by the first material. A piezoelectric device is also described, which includes a piezoelectric device layer including a composition of Chemical Formula 1, and having a first material layer and a second material layer surrounded by the first material layer; a first electrode part disposed on a first surface of the piezoelectric device layer; and a second electrode part disposed on a second surface facing the first surface.

Composition of piezoelectric material, method for fabricating the same, piezoelectric device, and display apparatus comprising piezoelectric device

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Seoul, South Korea

Su-Hwan Go