山东科学 ›› 2011, Vol. 24 ›› Issue (6): 44-48.doi: 10.3976/j.issn.1002-4026.2011.06.012

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涂覆PDDA/PSS膜的长周期光栅对湿度的响应性能

 李秋顺1,2, 苗飞3, 郑晖1,2, 马耀宏1,2, 王少杰1, 孙士青1, 史建国1,2   

  1. 1.山东省生物传感器重点实验室,山东省科学院生物研究所,山东 济南 250014; 2.山东省科学院中日友好生物技术研究中心,山东 济南 250014; 3.山东大学控制科学与工程学院,山东 济南 250061
  • 收稿日期:2011-08-22 出版日期:2011-12-20 发布日期:2011-12-20
  • 作者简介:李秋顺(1969-),男,博士,助理研究员,研究方向为光纤光栅生物化学传感。Email: lishun1688 @126.com
  • 基金资助:

    山东省科学院科技发展基金(科基合字(2010)第4号)

The response of PDDA/PSS films coated long-period fiber grating to humidity

 LI Qiu-Shun1,2, MIAO Fei3, ZHENG Hui1,2, MA Yao-Hong1,2, WANG Shao-Jie1, SUN Shi-Qing1, SHI Jian-Guo1,2   

  1. 1.Shandong Provincial Key Laboratory of Biosensors, Biology Institute ,Shandong Academy of Sciences,Jinan 250014, China; 2.Biotechnology Center , Shandong Academy of Sciences, Jinan 250014, China; 3.School of Control Science and Engineering, Shandong University, Jinan 250061, China
  • Received:2011-08-22 Online:2011-12-20 Published:2011-12-20

摘要:

     用静电自组装的方法在长周期光栅的表面制备了聚二甲基二烯丙基氯化铵/聚苯乙烯磺酸钠(PDDA/PSS)膜,并研究了它们对空气中湿度的响应。实验结果表明,随着空气绝对湿度的增加,长周期光栅传输谱的谐振峰波长逐渐向长波方向移动,在25~45℃范围内,饱和蒸气压与谐振峰波长呈现了很好的线性关系,相关系数为0.9727。涂覆PDDA/PSS膜的长周期光栅能感受空气中水蒸气的含量,有望用于制作湿度传感器。

关键词: 长周期光栅, PDDA, PSS, 聚合物薄膜, 湿度传感

Abstract:

       We employed electrostatic layer-by-layer self-assembly method to coat poly(diallyldimethylammonium chloride) (PDDA)/poly(sodium styrenesulfonate) (PSS) films on the surface of a long-period fiber grating (LPFG), and addressed their response to the humidity of air. Experimental results show that the central wavelengths in the transmission spectrum gradually shift to long wave with the increase of absolute humidity. A good linear relationship exists between absolute humidity and the central wavelength in the range of 25~45 ℃. A PDDA/PSS coated LPFG therefore has potential application prospect in a humidity sensor.

Key words: long-period fiber grating, PDDA, PSS, polymer films, humidity sensors

中图分类号: 

  • TP212.2