Design of a low power GPS receiver in 0.18 μm CMOS technology with a ΣΔfractional-N synthesizer

Li, Di; Yang, Yong; Jian-gan, Wang; Li, Bing; Long, Qiang; Wei, J.-M.; Wang, Nai-di; Wang, Lei; Liu, Qian-kun; Zhang, Da-long

doi:10.1631/jzus.c0910381

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…To achieve multifunctional smart window, VO 2 was incorporated with other functional materials that enable the windows can not only adjust solar energy radiation but also can behave ability of self‐cleaning, antifogging, photocatalytic, and anti‐oxidation . Parkin et al reported a VO 2 /SiO 2 /TiO 2 smart coating that exhibits excellent thermochromic, and can also resist abrasion compared to single VO 2 films with the same thickness .…”

Section: Strategies To Enhance Thermochromic Performance Of Vo2 Smartmentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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Vanadium dioxide (VO ) is a widely studied inorganic phase change material, which has a reversible phase transition from semiconducting monoclinic to metallic rutile phase at a critical temperature of τ ≈ 68 °C. The abrupt decrease of infrared transmittance in the metallic phase makes VO a potential candidate for thermochromic energy efficient windows to cut down building energy consumption. However, there are three long-standing issues that hindered its application in energy efficient windows: high τ , low luminous transmittance (T ), and undesirable solar modulation ability (ΔT ). Many approaches, including nano-thermochromism, porous films, biomimetic surface reconstruction, gridded structures, antireflective overcoatings, etc, have been proposed to tackle these issues. The first approach-nano-thermochromism-which is to integrate VO nanoparticles in a transparent matrix, outperforms the rest; while the thermochromic performance is determined by particle size, stoichiometry, and crystallinity. A hydrothermal method is the most common method to fabricate high-quality VO nanoparticles, and has its own advantages of large-scale synthesis and precise phase control of VO . This Review focuses on hydrothermal synthesis, physical properties of VO polymorphs, and their transformation to thermochromic VO (M), and discusses the advantages, challenges, and prospects of VO (M) in energy-efficient smart windows application.

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Section: Strategies To Enhance Thermochromic Performance Of Vo2 Smartmentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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306

185

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“…As a well‐known phase transition material, VO 2 exhibits the first‐order metal–insulator transition (MIT) and has promising applications in smart window, memory, and actuator devices . However, VO 2 is not thermal stable and is easily oxidized in the air, which restricts its real applications . Herein, the HAHTA‐synthesized hBNNS is used to improve the oxidation resistance of VO 2 via the formation of VO 2 /hBN composite.…”

Section: Resultsmentioning

confidence: 99%

Halides‐Assisted Low‐Temperature Synthesis of Hexagonal Boron Nitride Nanosheets

Wang

Cheng

et al. 2019

Part & Part Syst Charact

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Hexagonal boron nitride nanosheets (hBNNS) have various promising applications in dielectric and thermal conductive materials. However, in the bottom‐up method, well‐crystallized hBNNS could only be attained at very high temperatures. In this paper, a facile halide‐assisted hydrothermal assembly (HAHTA) method for the low‐temperature synthesis of well‐crystallized hBNNS is prepared. In HAHTA, the lateral growth of hBNNS is enhanced by the halide addition in the precursor, and the dimension reaches several micrometers. In addition, the obtained hBNNS enhance the oxidization resistance of vanadium dioxide (VO2) though the formation of a VO2/hBN composite, which is meaningful in facilitating the potential applications of VO2 as smart phase transition materials.

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“…On the other hand, structure engineering on nano‐ or microscale tends to ameliorate the unsatisfied properties as summarized in Figure c namely multilayered VO 2 , biomimetic structure, nanothermochromism and porous, and gridded structure, respectively. For example, multilayered structure can not only introduce antireflection to enhance T lum , but also grant multifunctionality (antioxidation ability and self‐cleaning) to the devices and solve the mild toxicity issue in VO 2 . Biomimetic moth eye nanostructuring can enhance both T lum and Δ T sol simultaneously as such structure gives rise to antireflection as well as more VO 2 surface area for solar modulations .…”

Section: Thermal Stimulated Devicesmentioning

confidence: 99%

Vanadium Dioxide: The Multistimuli Responsive Material and Its Applications

Wang

Liu

et al. 2018

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The reversible, ultrafast, and multistimuli responsive phase transition of vanadium dioxide (VO ) makes it an intriguing "smart" material. Its crystallographic transition from the monoclinic to tetragonal phases can be triggered by diverse stimuli including optical, thermal, electrical, electrochemical, mechanical, or magnetic perturbations. Consequently, the development of high-performance smart devices based on VO grows rapidly. This review systematically summarizes VO -based emerging technologies by classifying different stimuli (inputs) with their corresponding responses (outputs) including consideration of the mechanisms at play. The potential applications of such devices are vast and include switches, memories, photodetectors, actuators, smart windows, camouflages, passive radiators, resonators, sensors, field effect transistors, magnetic refrigeration, and oscillators. Finally, the challenges of integrating VO into smart devices are discussed and future developments in this area are considered.

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Design of a low power GPS receiver in 0.18 μm CMOS technology with a ΣΔfractional-N synthesizer

Cited by 8 publications

References 16 publications

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Halides‐Assisted Low‐Temperature Synthesis of Hexagonal Boron Nitride Nanosheets

Vanadium Dioxide: The Multistimuli Responsive Material and Its Applications

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Design of a low power GPS receiver in 0.18 μm CMOS technology with a ΣΔfractional-N synthesizer

Cited by 8 publications

References 16 publications

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Halides‐Assisted Low‐Temperature Synthesis of Hexagonal Boron Nitride Nanosheets

Vanadium Dioxide: The Multistimuli Responsive Material and Its Applications

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Product

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Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows