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Item Open Access Analytical modelling of planar potential and current distributions in electrodes of lithium-Ion batteries(Analytical modelling of planar potential and current distributions in electrodes of lithium-Ion batteries, 2015-11-11) Adair, D.; Hara, Toru; Massalin, Y.; Ismailov, K.; Bakenov, ZhumabayMathematical modelling can play an important role in the design of a lithium-ion cell in that many design iterations can be performed at relatively little cost. • Electrochemical models are useful for cell design and optimization but can be typically high-order and complex and hence computationally expensive, and, are therefore not suitable for real-time applications. • Much reduced order electrochemical models for lithium-ion cells have been developed, with these type of models more suitable for use with real-time on-board electronic control units. • However, a difficulty with these methods is that the current-voltage behavior for different operating conditions cannot be predicted.Item Restricted APTASENSOR FOR INSULIN (POLYPYRROLE BASED)(Nazarbayev University School of Engineering and Digital Sciences, 2021-06-29) Nazir, FaisalBiosensors are playing an important role in shaping the world of medical, pharmaceutical, agricultural, and environmental monitoring; they have transformed the way by which qualitative and quantitative determination of biological process was proceeding. Now, their role has shifted the sophisticated and laborious analysis of biomolecules in laboratory to point of care (POC) devices. POC devices have made it possible to detect any abnormality in biological processes without special expertise. ‘P4 Medicine’, which is predictive, personalized, preventive, and participatory has increased the demand for new biosensors in the form of wearable, implantable or ingestible devices (Zucolotto, 2020). For instance, the most common example of biosensor, which is available almost in every house, is a glucose monitor. However, other low-cost, portable, disposable, point-of-care biosensors with higher specificity, selectivity, and lower detection limit are still not massively available. Moreover, the manufacturing of biosensors requires scalability in order to increase its availability for the masses. To encounter this problem a method is required by which a biosensor can be produced in a simplified way...Item Restricted APTASENSOR FOR INSULIN (POLYPYRROLE BASED) [PRESENTATION](2021-07-07) Nazir, FaisalBiosensors are playing an important role in shaping the world of medical, pharmaceutical, agricultural, and environmental monitoring; they have transformed the way by which qualitative and quantitative determination of biological process was proceeding. Now, their role has shifted the sophisticated and laborious analysis of biomolecules in laboratory to point of care (POC) devices. POC devices have made it possible to detect any abnormality in biological processes without special expertise. ‘P4 Medicine’, which is predictive, personalized, preventive, and participatory has increased the demand for new biosensors in the form of wearable, implantable or ingestible devices (Zucolotto, 2020). For instance, the most common example of biosensor, which is available almost in every house, is a glucose monitor. However, other low-cost, portable, disposable, point-of-care biosensors with higher specificity, selectivity, and lower detection limit are still not massively available. Moreover, the manufacturing of biosensors requires scalability in order to increase its availability for the masses. To encounter this problem a method is required by which a biosensor can be produced in a simplified way...Item Open Access Innovative solutions for Lithium Ion battery future development [Presentation](2019-08-21) Yazami, RachidPresentation by professor R. Yazami (winner of the Draper Prize - considered the "Nobel Prize in Engineering") - one of the inventors of the lithium-ion battery, as well as other scientists who made our life very convenient and comfortable due to their inventions.Item Open Access Lithium sulfur battery: current status and future prospects(2013) Hara, Toru; Konarov, Aishuak; Mentbayeva, Almagul; Kurmanbayeva, Indira; Bakenov, ZhumabayThis publication has been made within the Sub-project #157-2013 which is funded under the Technology Commercialization Project, supported by the World Bank and the Government of the Republic of Kazakhstan.Item Restricted Progress in Solution Processed Organic Solar Cells and Hybrid Perovskite Solar Cells [Presentation](Nazarbayev University School of Engineering and Digital Sciences, 2019-09-11) Li, GangIn this presentation Dr. Gang Li will first go over the research journey in OPV during his Los Angeles years, from understanding of bulk heterojunction OPV morphology to development of polymer materials, to various interface Engineering approaches which have played significant role in advancing the organic polymer solar cell technology, including invention of inverted solar cell structure, tandem polymer solar cells etc.Item Open Access Thermal Management of Lithium-ion Battery Packs(2014) Adair, Desmond; Ismailov, Kairat; Bakenov, ZhumabayTemperature affects batteries in five major ways: •operation of electrochemical system; •efficiency and charge acceptance; •power and energy efficiency; •safety and reliability; and, •life and life-cycle costs. Li-ion batteries are extremely sensitive to low and high temperatures. For battery packs it is important to regulate the pack to remain in the desired temperature range for optimum performance and life, and also to reduce uneven distribution of temperature throughout a packwhich would lead to reduced performance. Importantly, the attainment of even temperature distributions through the battery pack eliminates potential hazards related to uncontrolled temperature build-up (‘thermal runaway’).Item Open Access Thermoelectric Materials and Devices for Power Generation [Presentation](2019-08-22) Sabri, Mohd Faizul MohdAlternative renewable energy sources are becoming increasingly important due to the increase in worldwide energy needs and the adverse environmental effects of energy derived from fossil fuel burning. Thermoelectric generators (TEGs) have been identified as a viable technology for waste energy harvesting, from heat into electricity. In addition, thermoelectric (TE) technology is seen to be more environmentally compatible, due to its ability to convert heat directly into electricity without CO2 emission. The key to successful realization of this technology on a commercial scale lies largely with the performance of the thermoelectric material which drives this technology. However, the performance of this technology for commercial devices is still limited due to their low conversion efficiency of ~10–15%. In recent years, great progress has been made in improving their dimensionless figure of merit (ZT), which determines the conversion efficiency of TE devices. ZT is related to three “interlocked” factors—the Seebeck coefficient, electrical conductivity, and thermal conductivity. These three factors are interdependent in bulk TE materials, and the increase in one parameter has the possible effect of reducing the other two, thus resulting in a limit to the overall performance.Item Open Access Three-dimensional Zn/LiFePO4 aqueous hybrid-ion battery for renewable energy integration into electrical grids.(2015-11-11) Hara, Toru; Antonov, Anton; Umirov, Nurzhan; Bakenov, ZhumabayRenewable energy integration into electrical grids is crucial for energy security, leading to the highly secured communication network, traffic control, industrial activities, etc. Renewable energies are intermittent and cannot be easily directly integrated to electric grids without using batteries. These batteries must be safe and inexpensive from the viewpoint of life-cycle cost. Aqueous batteries are non-flammable that can be a great merit compared with traditional lithium-ion batteries that use flammable organic electrolyte solutions.Item Restricted Two-Dimensional Materials from Materials, Properties to Applications [Presentation](Nazarbayev University School of Engineering and Digital Sciences, 2019-09) Lau Shu-Ping, DanielThe past few years have seen an explosion of interest in two-dimensional (2D) crystals derived from layered materials that possess strong in-plane bonding and weak van der Waals bonding between crystal planes. Layered 2D materials represent a diverse and largely untapped source of 2D systems with unusual electronic, magnetic and optical properties that are attractive for a wide range of applications from energy storage and catalysis for hydrogen evolution to electronics and optoelectronics. In this talk, the research activities related to 2D materials within the Department of Applied Physics will be reviewed. The bottom-up synthesis of graphene quantum dots will be presented together with their optoelectronic properties. The strain engineering of 2D materials such as graphene, black phosphorus and MoS2 will be discussed. The solution exfoliated BP flakes and quantum dots could enhance the performance of organic solar cells. Furthermore, it can also boost the performance of Li-S batteries significantly.