Browsing by Author "Lonne, Quentin"

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    Data for the paper "A Straightforward Route to Sensory Device Selection for IoT Systems"
    (Cranfield University, 2018-07-31 11:15) Jones, Paul; Lonne, Quentin; De Almeida Talaia, Pedro; Leighton, Glenn; G. Botte, Gerardine; Mutnuri, Srikanth; Williams, Leon
    Paper abstract: The Internet of Things allows for remote management and monitoring of many aspects of everyday life at the individual and industrial levels. However, designing these systems within constraints of cost and operational context can be a real challenge. The sensor network must be strategically designed, which means selecting the most appropriate sensors to collect a specific measurement in a specific environment and then optimizing their deployment and utilization. To facilitate sensor selection, we propose a straightforward, color-coded, three-sieve selection tool and demonstrate the efficacy of this method through real-life exemplars. The selection tool could be applied to other kinds of technologies, as well.
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    ItemOpen Access
    Data for the paper "UV Treatment of Flexible Copper Nanowire Mesh Films for Transparent Conductor Applications"
    (Cranfield University, 2017-11-01 10:07) Lonne, Quentin; Endrino Armenteros, Jose; Huang, Zhaorong
    Data used in the accompanying paper.
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    ItemOpen Access
    Innovative method to produce large-area freestanding functional ceramic foils
    (Elsevier, 2018-03-31) Leighton, Glenn J. T.; Jones, Paul M.; Lonne, Quentin; Dorey, Robert A.; Giuliano, Fabien
    Using thick and thin films instead of bulk functional materials presents tremendous advantages in the field of flexible electronics and component miniaturization. Here, a low-cost method to grow and release large-area, microscale thickness, freestanding, functional, ceramic foils is reported. It uses evaporation of sodium chloride to silicon wafer substrates as sacrificial layers, upon which functional lead titanate zirconate ceramic films are grown at 710 °C maximum temperature to validate the method. The freestanding, functional foils are then released by dissolution of the sacrificial sodium chloride in water and have the potential to be integrated into low-thermal stability printed circuits and flexible substrates. The optimization of the sodium chloride layer surface quality and bonding strength with the underlying wafer is achieved thanks to pre-annealing treatment.
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    ItemOpen Access
    A straightforward route to sensor selection for IoT systems
    (Taylor and Francis, 2018-09-12) Jones, Paul M.; Lonne, Quentin; Talaia, Pedro; Leighton, Glenn J. T.; Botte, Gerardine G.; Mutnuri, Srikanth; Williams, Leon
    The Internet of Things (IoT) allows for remote management and monitoring of many aspects of everyday life at the individual and industrial levels. However, designing these systems within constraints of cost and operational context can be a real challenge. The sensor network must be strategically designed, which means selecting the most appropriate sensors to collect a specific measurement in a specific environment and then optimizing their deployment and utilization. To facilitate sensor selection, we propose a straightforward, color-coded, three-sieve selection tool and demonstrate the efficacy of this method through real-life exemplars. The selection tool could be applied to other kinds of technologies as well.
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    ItemOpen Access
    UV treatment of flexible copper nanowire mesh films for transparent conductor applications
    (Springer, 2017-10-30) Lonne, Quentin; Endrino, José L.; Huang, Zhaorong
    Copper nanowires have the potential to reach and even exceed the indium tin oxide performances as flexible transparent conductive electrodes. However, for a large-scale production, they need to be fabricated in a high-speed, low-cost way, without degrading the flexible substrate. One of the major bottlenecks resides in the post-treatment used to remove organic residues from the surface of the nanowires after forming the transparent electrode, which is necessary to obtain high optoelectronic performances. Here, we propose an ultra-violet irradiation and a subsequent acetic acid bath as an easy, scalable, fast post-treatment. After only 2 min of ultra-violet treatment, followed by 10 min of acid bath, an Rs of 42 Ω sq−1 and a T 550 nm of 87% were measured. Besides, copper nanowire electrodes maintained their high transparency in the range 750–2500 nm, which makes them good candidates for applications such as infrared solar cells.