Abstract:Thermal detectors find a significant niche in the market of modern sensors. Bi2T3 and PbTe semiconductors are effective thermoelectrics and excellent candidates for different applications. In the present work, a technology for fabrication of p-Bi0.5Sb1.5Te3 and n-PbTe films with the high thermoelectric efficiency on thin flexible polyimide substrate has been developed. The preparation of films was performed by flash evaporation method. The high sensitivity of the devices is due to the high Seebeck coefficient … Show more
“…5. Fabrication of a thin protective coating with the thickness of ~ 0.5 µm on both sides of the FTEM by plasma-chemical method of cyclohexane polymerization [73].…”
Section: Solar Film Thermoelectric Module (Ftem) On Flexible Substratementioning
Due to the increase in energy demand and depletion of natural resources, the development of energy harvesting technologies becomes very important. Thermoelectric devices, based on the direct conversion of heat into electrical energy, are being the essential part of cost-effective, environmental-friendly, and fuel-saving energy sources for power generation, temperature sensors, and thermal management. High reliability and long operation time of thermoelectric energy systems lead to their extensive use in space industry and gas pipe systems. Development and wide application of solar thermoelectric converters (generators) is mainly limited by relatively low thermoelectric conversion efficiency. In this work, we suggest for the first time to use direct conversion of solar energy by systems based on high-performance multistage thermoelectric modules operating in the temperature range of 300 - 900 K for creation of autonomic systems with electric power up to 500 W and electric efficiency up to 15 %. Furthermore, we developed film thermoelectric modules on thin flexible substrates with the figure of merit Z corresponding to that of bulk modules. Such film thermoelectric converters with output voltage of several volts and electric power of several microwatts can be used at micro-solar energy systems.
“…5. Fabrication of a thin protective coating with the thickness of ~ 0.5 µm on both sides of the FTEM by plasma-chemical method of cyclohexane polymerization [73].…”
Section: Solar Film Thermoelectric Module (Ftem) On Flexible Substratementioning
Due to the increase in energy demand and depletion of natural resources, the development of energy harvesting technologies becomes very important. Thermoelectric devices, based on the direct conversion of heat into electrical energy, are being the essential part of cost-effective, environmental-friendly, and fuel-saving energy sources for power generation, temperature sensors, and thermal management. High reliability and long operation time of thermoelectric energy systems lead to their extensive use in space industry and gas pipe systems. Development and wide application of solar thermoelectric converters (generators) is mainly limited by relatively low thermoelectric conversion efficiency. In this work, we suggest for the first time to use direct conversion of solar energy by systems based on high-performance multistage thermoelectric modules operating in the temperature range of 300 - 900 K for creation of autonomic systems with electric power up to 500 W and electric efficiency up to 15 %. Furthermore, we developed film thermoelectric modules on thin flexible substrates with the figure of merit Z corresponding to that of bulk modules. Such film thermoelectric converters with output voltage of several volts and electric power of several microwatts can be used at micro-solar energy systems.
“…This allows the user to connect the mobile device only while using the application or periodically to transfer data to the server, which significantly saves battery power. As a power source in the case of an earlobe clip, it is convenient to use miniature lithium-ion batteries of the LIR2032 type, it is also possible to use smaller batteries, for example LIR1220, and thin-film thermoelectric converters based on IV-VI compounds to extend the period of operation without recharging [14][15][16][17], which can work due to the temperature difference between the human body and the environment. The pulse wave analysis algorithm consists in processing an array of digitized data, determining the points А0-А3 and Т0-Т4 (Fig.…”
Section: Fig 4 Emission Spectrum Of An Incandescent Lamp (1) a Haloge...mentioning
The paper analyzes the existing non-invasive methods and tools for measuring and monitoring heart rate (HR), glucose saturation and human blood glucose level (BGL), shows ways of improving them to increase accuracy and expand the number of parameters obtained by these methods, which became the basis for creating a hybrid microsystem device for biomedical applications.
A block diagram of the microsystem and a prototype of software and hardware tools for continuous monitoring of heart rate, BGL, saturation level and other blood parameters by photoplethysmography (PPG) have been developed. The proposed algorithms and tools provide primary processing of signals from optical sensors, calculation of pulse wave parameters, data transmission to mobile devices and a remote server, the possibility of calibration during operation based on research results.
“…Additionally, their fast response times, low interference r in flow filed, in situ detection, and passive sensing ability confer them with unique advantages over other temperature sensors. 40 , 44 , 48 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 Figure 1 Advantages of flexible TFTCs: Deformable; Easy attachment; Fast response; Ultra-thin; Ultra-light; in situ detection; Non-spoiler (low interference r in flow filed); Passive sensing …”
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