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Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling
นักวิจัย : Nguyen, Chien A. , Lee, Pooi See , Yee, Wu Aik , Lu, Xuehong , Srinivasan, Madhavi , Mhaisalkar, Subodh G.
คำค้น : DRNTU::Science::Chemistry::Physical chemistry::Electrochemistry.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2550
อ้างอิง : Nguyen, C. A., Lee, P. S., Yee, W. A., Lu, X., Srinivasan, M., & Mhaisalkar, S. G. (2007). Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling. Journal of the electrochemical society, 154(10), G224-G228. , http://hdl.handle.net/10220/18843 , http://dx.doi.org/10.1149/1.2769269
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of the electrochemical society
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Electrical poling is of much interest for the enhancement of polarization properties of ferroelectric materials such as poly(vinylidene-trifluoroethylene) [P(VDF-TrFE)] in applications ranging from memory devices to piezoelectric actuation. Here, we report the changes in dielectric and optical properties correlated with structural modification of P(VDF-TrFE) thin films (<1 μm thickness) subjected to corona poling at low voltages (6 kV) under various thermal conditions. Enhanced crystallinity of hot-poled samples was observed independent of thermal history and crystalline structure, indicating the absence of recrystallization during poling. Absorption measurements confirmed the ordered structure in hot-poled samples due to the permanent orientation of the dipoles and higher crystallinity, thus resulting in increased and long-retained capacitance of the ferroelectric P(VDFTrFE) capacitor device from high frequency C-V characterization. X-ray photoelectron spectroscopy further confirmed the shifting of C and F core orbitals to higher binding energy is related to formation of more ferroelectric phases by corona poling.

บรรณานุกรม :
Nguyen, Chien A. , Lee, Pooi See , Yee, Wu Aik , Lu, Xuehong , Srinivasan, Madhavi , Mhaisalkar, Subodh G. . (2550). Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Nguyen, Chien A. , Lee, Pooi See , Yee, Wu Aik , Lu, Xuehong , Srinivasan, Madhavi , Mhaisalkar, Subodh G. . 2550. "Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Nguyen, Chien A. , Lee, Pooi See , Yee, Wu Aik , Lu, Xuehong , Srinivasan, Madhavi , Mhaisalkar, Subodh G. . "Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2550. Print.
Nguyen, Chien A. , Lee, Pooi See , Yee, Wu Aik , Lu, Xuehong , Srinivasan, Madhavi , Mhaisalkar, Subodh G. . Enhanced functional and structural characteristics of poly(vinylidene-trifluoroethylene) copolymer thin films by corona poling. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2550.