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发明授权
CN101954789B 液体喷射头、液体喷射装置和压电元件 有权

液体喷射头、液体喷射装置和压电元件
摘要：
本发明提供可提高绝缘性并抑制泄漏电流的发生的具有压电元件的液体喷射头及液体喷射装置以及压电元件。本发明的液体喷射头，具备：压力发生室，其与喷嘴开口连通；和压电元件，其具备第1电极、在上述第1电极上形成的压电体层和在上述压电体层的上述第1电极的相反侧形成的第2电极；其中，上述压电体层具有钙钛矿结构和绝缘性，上述钙钛矿结构的A位和氧位分别具有A位金属和氧原子脱离后的空位，并且在上述空位具有氢原子。
摘要（英）：

A liquid-ejecting head includes a pressure-generating chamber that communicates with a nozzle opening and a piezoelectric element. The piezoelectric element includes a first electrode; a piezoelectric body layer formed on the first electrode; and a second electrode formed on the piezoelectric body layer on a side opposite the first electrode. In the liquid-ejecting head, the piezoelectric body layer has a perovskite structure and an insulating property, and an A-site and an oxygen site of the perovskite structure respectively include a vacancy formed by losing an A-site metal and a vacancy formed by losing an oxygen atom, each of the vacancies including a hydrogen atom.

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