Self-biased dielectric bolometer from epitaxially grown Pb(Zr,Ti)O3 and lanthanum-doped Pb(Zr,Ti)O3 multilayered thin films

被引：25

作者：

Liu, WG ^{[1
]}

Jiang, B ^{[1
]}

Zhu, WG ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr Microelect, Singapore 639798, Singapore

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 07期

关键词：

D O I：

10.1063/1.1289064

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A self-biased dielectric bolometer has been realized by epitaxially grown lead zirconate titanate Pb-1.1(Zr0.3Ti0.7)O-3 (PZT 30/70) and lanthanum-doped lead zirconate titanate Pb0.83La0.17(Zr0.3Ti0.7)(0.9575)O-3 (PLZT 17/30/70) multilayered thin films using the sol-gel technique. The high-resolution transmission electron microscopy images and electron diffraction pattern showed that the multilayered film had its preferred (111) orientation and the epitaxial growth between the PZT 30/70 and PLZT 17/30/70 layers. The self-biased phenomenon and a large pyroelectric current were observed in the prepoled sample without any external bias at the PLZT 17/30/70 phase transition temperature of 120 degrees C. Pyroelectric coefficient as high as 990 mu C/m(2)K is obtained in the multilayer thin films around 120 degrees C. It is obvious that there exists an induced polarization in the PLZT 17/30/70 layer. We attribute this self-biased effect to the strong remnant polarization in the immediately contacted tetragonal PZT 30/70 layers. (C) 2000 American Institute of Physics. [S0003-6951(00)04333-3].

引用

页码：1047 / 1049

页数：3

共 18 条

[1] PYROELECTRIC COEFFICIENT DIRECT MEASUREMENT TECHNIQUE AND APPLICATION TO A NSEC RESPONSE TIME DETECTOR [J].

BYER, RL ;

ROUNDY, CB .

FERROELECTRICS, 1972, 3 (2-3-) :333-&

[2] DEPOLARIZATION BEHAVIOR AND REVERSIBLE PYROELECTRICITY IN LEAD SCANDIUM-TANTALATE CERAMICS UNDER DC BIASES [J].

CHEN, ZL ;

YAO, X ;

CROSS, LE .

FERROELECTRICS, 1983, 49 (1-4) :213-217

[3]

HAERTLING GH, 1971, J AM CERAM SOC, V54, P1, DOI [10.1111/j.1151-2916.1971.tb12296.x, 10.1111/j.1151-2916.1970.tb12105.x-i1]

[4]

HANSON C, 1994, ISAF '94 - PROCEEDINGS OF THE NINTH IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS, P657, DOI 10.1109/ISAF.1994.522455

[5]

Jaffe B., 1971, PIEZOELECTRIC CERAMI

[6]

Kohler R, 1998, INTEGR FERROELECTR, V22, P903

[7] Pyroelectric thin-film sensor array [J].

Kohli, M ;

Wuethrich, C ;

Brooks, K ;

Willing, B ;

Forster, M ;

Muralt, P ;

Setter, N ;

Ryser, P .

SENSORS AND ACTUATORS A-PHYSICAL, 1997, 60 (1-3) :147-153

[8]

Kruse P. W, 1997, UNCOOLED INFRARED IM

[9]

KULWICKI BM, 1992, ISAF 92 : PROCEEDINGS OF THE EIGHTH IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS, P1, DOI 10.1109/ISAF.1992.300607

[10] PYROELECTRIC DETECTORS AND MATERIALS [J].

LIU, ST ;

LONG, D .

PROCEEDINGS OF THE IEEE, 1978, 66 (01) :14-26

← 1 2 →