Epitaxial-like growth of solution-processed PbZr0.4Ti0.6O3 thin film on single-crystal Nb-doped SrTiO3 substrate

Hoang, Ha
Bui, Nguyen Quoc Trinh
PbZr0.4Ti0.6O3 (PZT) thin films have been conventionally fabricated on traditional silicon substrates with a platinum bottom electrode; however, as a consequence of unit cell mismatch, the films are difficult to form as an epitaxial-like growth. Hence, PZT films deposited on single-crystal niobium doped SrTiO3(111) substrates (Nb:STO) are promising to solve this issue thanks to the similar perovskite structure between PZT and STO. Essentially, Nb:STO material is a conductor, playing a part in both bottom electrode and epitaxial substrate. In this work, 200-nm-thick PZT films were successfully fabricated on Nb:STO substrates by a solution process. One obtained that PZT(111) peak started to appear on the Nb:STO substrate at a low annealing temperature of 450oC. Also, scanning electron microscopy observation shows smooth and homogeneous surface of PZT films on Nb:STO substrate with no grain boundary, which evidences for epitaxial-like growth of PZT thin films. Remnant polarization of 6 µC/cm2 and leakage current of 8×10-8 A were obtained at applied voltage of 5 V.
Chi tiết xin mời tham khảo tại http://repository.vnu.edu.vn/handle/VNU_123/61025 
Title: Epitaxial-like growth of solution-processed PbZr0.4Ti0.6O3 thin film on single-crystal Nb-doped SrTiO3 substrate
Authors: Hoang, Ha
Bui, Nguyen Quoc Trinh
Keywords: PZT;Nb:STO;spin-coating;ferroelectric;FeRAM
Issue Date: 2017
Publisher: ĐHQGHN
Series/Report no.: Vol 33;No 4
Description: p. 36-44
URI: http://repository.vnu.edu.vn/handle/VNU_123/61025
ISSN: 2588-1124
Appears in Collections:Mathematics and Physics

Nhận xét

Bài đăng phổ biến từ blog này

Xây dựng quy trình định lượng flurbiprofen trong viên nénbao phim 100 mg bằng phương pháp sắc ký lỏng hiệu năng cao ghép đầu dò diode-array

BTEX pollution caused by motorcycles in the megacity of HoChiMinh

Cultural Differences: A Barrier to Native English Teachers in English as a Foreign Language Contexts