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无机材料学报

无机材料学报

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一种天然湿敏性二维可调光子带隙材料及其光学性能研究

张伟钢， 严 俊， 汪 港， 李浩璇， 张刚生   

  1. 广西大学 化学化工学院， 南宁 530004
  • 收稿日期:2008-05-07 修回日期:2008-09-04 出版日期:2009-01-20 网络出版日期:2009-01-20

A Natural Humidity Sensitive Two-dimensional Tunable Photonic Band Gap Material and its Optic Properties

ZHANG Wei-Gang, YAN Jun, WANG Gang, LI Hao-Xuan, ZHANG Gang-Sheng   

  1. College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
  • Received:2008-05-07 Revised:2008-09-04 Published:2009-01-20 Online:2009-01-20

PDF (PC)

1760

被引次数

12 | 3

摘要： 采用反射光谱、扫描电镜及理论模拟计算对三角帆蚌韧带的结构色及微结构进行了较为系统的研究.结果表明：韧带从湿润到干燥状态，其反射峰波长从460nm蓝移至423nm，且反射峰强度逐渐降低，相应的颜色从蓝色转变为背景色褐色.韧带的结构色是由韧带中定向排列的文石纤维和蛋白质构成的二维光子结构引起的，该结构中文石纤维粒径为(122±14)nm，相邻文石纤维中心间距为(133±15)nm.水对韧带的反射峰强度及光子带隙范围具有明显的调节作用，可见韧带具有湿敏性二维可调光子带隙结构特征，属于一种天然的湿敏性二维可调光子带隙材料.

关键词: 贝壳韧带, 二维可调光子结构, 湿敏性, 结构色

Abstract: The structural color and microstructure of the bivalve ligament of Hyriopsis cunimgii were investigated by reflection spectra, scanning electron microscope and theoretical simulation. The results are listed as follows, reflection peak wavelength of the ligament blue-shifts from 460nm to 423nm with the increase of air drying time from 0 to 60min, and the reflectivity decreases gradually, relevant color changes from blue to brown background color. The structural color in the ligament is produced by the 2D photonic structure consisting of aligned aragonite fibers and proteins, in which the diameter of aragonite fiber and the inter-fiber spacing is (122±14)nm and (133±15nm, respectively. Water can reversibly tune the reflectivity of reflection peak and the scope of photonic band gap (PBG), revealing that the ligament is characteristic of humidity sensitive 2D tunable PBG structure. It is concluded that the ligament belongs to the natural humidity sensitive 2D tunable PBG material.

Key words: bivalve ligament, 2D tunable photonic structure, humidity sensitive, structural color

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