Method of manufacturing electromechanical transducer element, electromechanical transducer element, discharging head, and inkjet recording device

An electromechanical transducer element that is produced by a method comprising:

• a first process of hydrophobizing a first area of an electrode by forming a self-assembled monolayer film on the first area, wherein a complex oxide film has been formed on a predetermined second area of the electrode, and the complex oxide film has not been formed on the first area of the electrode;
• a second process of applying a sol-gel solution onto the predetermined second area of the electrode where the self-assembled monolayer film has not been formed, wherein the sol-gel solution is adjusted to produce the complex oxide;
• a third process of producing the complex oxide by calcining the electrode to which the sol-gel solution has been applied;
• a fourth process of acid-washing the electrode on which the complex oxide has been produced;
• a fifth process of hydrophobizing, by forming the self-assembled monolayer film, the first area of the acid-washed electrode on which the complex oxide film has not been formed;
• a sixth process of applying the sol-gel solution onto the predetermined second area where the self-assembled monolayer film has not been formed;
• and
• a seventh process of producing the complex oxide by calcining the electrode on which the sol-gel solution has been applied.

A discharging head that includes an electromechanical transducer element, the electromechanical transducer element being produced by a method comprising:

• a first process of hydrophobizing a first area of an electrode by forming a self-assembled monolayer film on the first area, wherein a complex oxide film has been formed on a predetermined second area of the electrode, and the complex oxide film has not been formed on the first area of the electrode;
• a second process of applying a sol-gel solution onto the predetermined second area of the electrode where the self-assembled monolayer film has not been formed, wherein the sol-gel solution is adjusted to produce the complex oxide;
• a third process of producing the complex oxide by calcining the electrode to which the sol-gel solution has been applied;
• a fourth process of acid-washing the electrode on which the complex oxide has been produced;
• a fifth process of hydrophobizing, by forming the self-assembled monolayer film, the first area of the acid-washed electrode on which the complex oxide film has not been formed;
• a sixth process of applying the sol-gel solution onto the predetermined second area where the self-assembled monolayer film has not been formed;
• and
• a seventh process of producing the complex oxide by calcining the electrode on which the sol-gel solution has been applied.

An inkjet recording device that includes a discharging head including an electromechanical transducer element, the electromechanical transducer element being produced by a method comprising:

• a first process of hydrophobizing a first area of an electrode by forming a self-assembled monolayer film on the first area, wherein a complex oxide film has been formed on a predetermined second area of the electrode, and the complex oxide film has not been formed on the first area of the electrode;
• a second process of applying a sol-gel solution onto the predetermined second area of the electrode where the self-assembled monolayer film has not been formed, wherein the sol-gel solution is adjusted to produce the complex oxide;
• a third process of producing the complex oxide by calcining the electrode to which the sol-gel solution has been applied;
• a fourth process of acid-washing the electrode on which the complex oxide has been produced;
• a fifth process of hydrophobizing, by forming the self-assembled monolayer film, the first area of the acid-washed electrode on which the complex oxide film has not been formed;
• a sixth process of applying the sol-gel solution onto the predetermined second area where the self-assembled monolayer film has not been formed;
• and
• a seventh process of producing the complex oxide by calcining the electrode on which the sol-gel solution has been applied.