Author
Xigao Jian
Bio: Xigao Jian is an academic researcher from Dalian University of Technology. The author has contributed to research in topics: Membrane & Ether. The author has an hindex of 39, co-authored 303 publications receiving 5106 citations.
Topics: Membrane, Ether, Curing (chemistry), Ketone, Thermal stability
Papers published on a yearly basis
Papers
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TL;DR: Athermal silicon ring resonators are experimentally demonstrated by overlaying a polymer cladding on narrowed silicon wires with wavelength temperature dependence reduced to less than 5 pm/degrees C, almost eleven times less than that of normal silicon waveguides.
Abstract: Athermal silicon ring resonators are experimentally demonstrated by overlaying a polymer cladding on narrowed silicon wires. The ideal width to achieve athermal condition for the TE mode of 220 nm-height SOI waveguides is found to be around 350 nm. After overlaying a polymer layer, the wavelength temperature dependence of the silicon ring resonator is reduced to less than 5 pm/degrees C, almost eleven times less than that of normal silicon waveguides. The optical loss of a 350-nm bent waveguide (with a radius of 15 microm) is extracted from the ring transmission spectrum. The scattering loss is reduced to an acceptable level of about 50 dB/cm after overlaying a polymer cladding.
277 citations
TL;DR: In this article, the effects of CME quantity, reaction temperature, and reaction time on degree of chloromethylation (DCM) were investigated, and the results show that QAPPEK membranes could be promising anion exchange membranes for VRB applications.
153 citations
TL;DR: In this article, a new hollow fiber composite nanofiltration membrane with high permeability was prepared by interfacial polymerization of piperazine (PIP) aqueous solution and trimesoyl chloride (TMC) hexane solution.
121 citations
TL;DR: In this paper, sulfonated poly(phthalazinones) (SPPESs) were used for proton exchange membrane (PEM) materials for use in fuel cells.
119 citations
TL;DR: The ultrafiltration and nanofiltration membranes have been prepared successfully from poly (phthalazine ether sulfone ketone) (PPESK), a proprietary chemical of excellent thermal, chemical and mechanical stability.
116 citations
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TL;DR: This review offers details of the technologies, in terms of needs, status, challenges and future R&d directions, that are expected to integrate significant levels of renewables into the electrical grid.
Abstract: The is a comprehensive review on the needs and potential storage technologies for electrical grid that is expected to integrate significant levels of renewables. This review offers details of the technologies, in terms of needs, status, challenges and future R&d directions.
4,096 citations
TL;DR: The techniques that have, and will, be used to implement silicon optical modulators, as well as the outlook for these devices, and the candidate solutions of the future are discussed.
Abstract: Optical technology is poised to revolutionize short-reach interconnects. The leading candidate technology is silicon photonics, and the workhorse of such an interconnect is the optical modulator. Modulators have been improved dramatically in recent years, with a notable increase in bandwidth from the megahertz to the multigigahertz regime in just over half a decade. However, the demands of optical interconnects are significant, and many questions remain unanswered as to whether silicon can meet the required performance metrics. Minimizing metrics such as the device footprint and energy requirement per bit, while also maximizing bandwidth and modulation depth, is non-trivial. All of this must be achieved within an acceptable thermal tolerance and optical spectral width using CMOS-compatible fabrication processes. This Review discusses the techniques that have been (and will continue to be) used to implement silicon optical modulators, as well as providing an outlook for these devices and the candidate solutions of the future.
2,110 citations
TL;DR: In this article, the status of worldwide research in the thermal conductivity of carbon nanotubes and their polymer nanocomposites is reviewed, as well as the relationship between thermal conductivities and the micro- and nano-structure of the composites.
2,102 citations
TL;DR: An overview of the current state-of-the-art in silicon nanophotonic ring resonators is presented in this paper, where the basic theory of ring resonance is discussed and applied to the peculiarities of submicron silicon photonic wire waveguides: the small dimensions and tight bend radii, sensitivity to perturbations and the boundary conditions of the fabrication processes.
Abstract: An overview is presented of the current state-of-the-art in silicon nanophotonic ring resonators. Basic theory of ring resonators is discussed, and applied to the peculiarities of submicron silicon photonic wire waveguides: the small dimensions and tight bend radii, sensitivity to perturbations and the boundary conditions of the fabrication processes. Theory is compared to quantitative measurements. Finally, several of the more promising applications of silicon ring resonators are discussed: filters and optical delay lines, label-free biosensors, and active rings for efficient modulators and even light sources.
1,989 citations
TL;DR: In this article, the authors present an overview of the key requirements for the proton exchange membranes (PEM) used in fuel cell applications, along with a description of the membrane materials currently being used and their ability to meet these requirements.
1,715 citations