Functional Devices for Clean Energy and Advanced Sensor Applications
Functional Devices for Clean Energy and Advanced Sensor Applications
复制标题
用于清洁能源和先进传感器应用的功能器件
DOI：
10.1155/2016/9162634
复制
发表时间：
2016
影响因子：
--
通讯作者：
Yu R
中科院分区：
文献类型：
--
作者：
Yu R
最近全球对环境污染和正在迅速消耗的有限资源的认识有所提高，需要解决方案。需要传感器网络来实时监测水、空气的质量，以及我们生活环境的总体健康状况。需要采取方法来净化废水和重新鉴定工业废物，以恢复数十年消费主义造成的创伤。新型生态友好技术将增加绿色和可持续能源的生产及其安全储存和运输。纳米科学和纳米技术是帮助应对这些挑战的强大工具。对材料的纳米尺寸的良好控制允许达到广泛的新的物理化学性质，并解决否则无法解决的问题。这种方法可以在不同的比赛和应用中以多种方式使用，正如在这个特殊问题中所看到的那样。蒋晓丽等从理论上研究了一种基于光子晶体光纤中长周期光栅的折射率传感器。他们使用六边形的模式与5个气孔环周围的中央之一。使用有限元方法，并将各向异性完全匹配层作为吸收边界条件，他们能够评估泄漏模式的真实的和虚部。共振波长的偏移仅对外环的较大孔中的折射率敏感，所述较大孔可以填充有选定的分析物。
The recent global increase of awareness about the environment pollution and the limited resources which are being rapidly consumed needs solutions. Networks of sensors are needed to monitor in real-time the quality of water, air, and in general the health of the ambient we are living in. Methods to clean wastewater and requalify industrial waste are required in order to recover the scars from decades of consumerism. Novel ecofriendly technologies will allow increased production of green and sustainable energy and its safe storage and transportation.Nanoscience and nanotechnology are powerful instruments helping to face these challenges. A good control on nanometric size of materials permits reaching a wide range of new physicochemical properties and addressing problems which could not otherwise be solved. This approach can be utilized in several ways in different contests and applications, as can be seen in this special issue. XL Jiang et al. studied theoretically a refractive index sensor based on a long period grating written in a specially designed photonic crystal fiber. They used hexagonal pattern with 5 rings of air holes around the central one. Using the finite element method and incorporating anisotropic perfectly matched layers as absorbing boundary conditions, they were able to evaluate the real and imaginary parts of the leaky mode. The shift of the resonant wavelength is sensitive only to the refractive index in the larger holes of the outer ring, which can be filled with a selected analyte.