적외선 감지를 위한 0∼3 PbTiO3/P(VDF/TrFE) 복합체 필름의 향상된 초전 특성

권성열; Sung-Yeol Kwon

Polymer(Korea), Vol.35, No.5, 375-377, September, 2011

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적외선 감지를 위한 0∼3 PbTiO3/P(VDF/TrFE) 복합체 필름의 향상된 초전 특성

Improved Pyroelectric Characteristics of 0∼3 PbTiO3/P(VDF/TrFE) Composites Films for Infrared Sensing

권성열^†

부경대학교 전기공학과

Sung-Yeol Kwon^†

Department of Electrical Engineering, Pukyong National University, 599-1, Daeyeon 3-dong, Nam-gu, Busan 608-737, Korea

E-mail:

초록

두 단계 스핀 코팅 방법을 사용하여 세라믹 체적 분율 0.10과 0.13의 PbTiO3/P(VDF/TrFE) 0~3형 복합재료를 제작하고 분석하였다. 0~3형 PbTiO3/P(VDF/TrFE) 복합재료를 SEM 전자현미경 사진으로 성공적으로 확인할 수 있었다. 이러한 전자현미경 사진을 통하여 복합재료의 0~3형 구조를 재확인하였다. 0~3형 PbTiO3/P(VDF/TrFE) 복합재료는 P(VDF/TrFE) 공중합체보다 센서용 전기적 특성이 우수함을 나타내었다. 그러므로 이러한 낮은 유전상수와 높은 초전계수를 나타내는 0∼3형 PbTiO3/P(VDF/TrFE) 복합재료는 더 높은 성능을 나타낼 수 있는 새로운 초전형 센서 재료로 사용될 수 있다.

PbTiO3/P(VDF/TrFE) 0∼3 composites thin films with 0.10 and 0.13 of ceramic volume fraction factor have been fabricated by two-step spin coating technique and analyzed. 0∼3 connectivity of PbTiO3/P(VDF/TrFE) composites film was observed successfully by SEM micrography. The SEM picture confirmed 0∼3 connectivity. And, in all the properties, 0∼3 PbTiO3/P(VDF/TrFE) composites film was superior to P(VDF/TrFE) copolymer. Therefore, with a good low-dielectric constant and a high pyroelectric coefficient, the composite thin films can be used for a new pyroelectric infrared sensor of higher performance.

Keywords:PbTiO3;P(VDF);P(VDF/TrFE);composites;infrared.

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[2] Kim JH, Park TK, Lee H, Lee DJ, Polymer (Korea)., 3, 101 (1995)

[3] Kim WS, Song HS, Lee BO, Kwon KH, Lim YS, Kim MS, Macromol. Res., 10(5), 253 (2002)

[4] Kawai H, Jpn. J. Appl. Phys., 8, 975 (1969)

[5] Kim GH, Macromol. Res., 12(6), 564 (2004)

[6] Ryu JG, Lee JW, Kim H, Macromol. Res., 10(4), 187 (2002)

[7] Ruppel W, Sens. Actuators A., 31, 225 (1992)

[8] Lozinski A, Wang F, Uusimaki A, Leppavuori S, Meas. Sci. Technol., 8, 33 (1997)

[9] Kawai H, Jpn. J. Appl. Phys., 8, 975 (1969)

[10] Phelan RJ, Jr., Mahler RJ, Cook AR, Appl. Phys. Lett., 19, 337 (1971)

[11] Setiadi D, Regtien PPL, Sarro PM, Sens.Actuators A., 52, 103 (1996)

[12] Kwon SY, Kim KW, J. Korean Sensors Society., 3, 226 (1999)

[13] Newnham RE, Skinner DP, Cross LE, Mater. Res.Bull., 13, 525 (1978)

[14] Xu Y, Ferroelectric Materials and Their Application, Elsevier Science Publishers B. V., Amsterdam (1991)

[15] Das-Gupta DK, Ferroelectric Polymers and Ceramic-Polymer Composites, Trans Tech Publications, Switzerland (1994)

[16] Son TW, Kim JH, Choi WM, Han FF, Kwon OK, Polym.(Korea), 35(2), 130 (2011)

[17] Kim SK, Ryu JH, Kwen HD, Chang CH, Cho SH, Polym.(Korea), 34(2), 126 (2010)

[18] Kwon SY, Journal of the Institute of Signal Processing and Systems(Korea)., 3, 74 (2002)