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Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties
นักวิจัย : Goh, Phoi Chin , Yao, Kui , Chen, Zhong
คำค้น : DRNTU::Science::Chemistry::Physical chemistry.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Goh, P. C., Yao, K., & Chen, Z. (2012). Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties. The Journal of Physical Chemistry C, 116(29), 15550-15556. , http://hdl.handle.net/10220/17225 , http://dx.doi.org/10.1021/jp301067g
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : The journal of physical chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

An understanding of the reaction mechanisms of ethylenediaminetetraacetic acid (EDTA) and diethanolamine (DEA) for producing solution-derived (K, Na)NbO3 (KNN) thin films with outstanding piezoelectric properties and low leakage current is developed. X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and nuclear magnetic resonance spectroscopy (NMR) were used to analyze the interactions among EDTA, DEA, and metal cations in both precursor solutions and amorphous films. XPS analyses showed that the oxidation states of potassium, niobium, and oxygen in KNN amorphous film were enhanced with addition of EDTA and DEA in the precursor solution, which shifted closer to the oxidation states in the perovskite phase of the resulting KNN oxide film. FTIR analyses indicated that EDTA and DEA formed dative bonds with the nonhydrated potassium and sodium acetate after pyrolysis process at 330 °C while NMR analyses showed that such interactions could have occurred in the precursor solution. NMR analyses also indicated that DEA could have chelated niobium precursor. It is proposed that EDTA and DEA acted as a “bridge” that linked the metal precursors in the solution, which is critical to suppressing the volatilization of the metal cations, for achieving the reported outstanding electrical properties of the resulting KNN films.

บรรณานุกรม :
Goh, Phoi Chin , Yao, Kui , Chen, Zhong . (2555). Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Goh, Phoi Chin , Yao, Kui , Chen, Zhong . 2555. "Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Goh, Phoi Chin , Yao, Kui , Chen, Zhong . "Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Goh, Phoi Chin , Yao, Kui , Chen, Zhong . Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.