The atomic layer thermopile heat flux sensor based on the inclined epitaxial YBa2Cu3O7-δ films

Chen, Xi; Tao, Bowan; Zhao, Ruwei; Yang, Kai; Li, Zhen-Zhe; Xie, Tian; Zhong, Yao; Zhang, Tong; Xia, Yudong

doi:10.1016/j.matlet.2022.133336

Cited by 21 publications

(3 citation statements)

References 5 publications

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“…The sensitivity of ALTP was measured to be 0.022 mV/(kW/m 2 ) after static calibration with a high-temperature blackbody furnace, slightly exceeding the 0.017 mV/(kW/m 2 ) reported in reference [14]. The furnace, which incorporates a graphite tube heating body and a quartz glass window, serves as a standard heat source, radiating stable heat for the flux measurement system.…”

Section: Sensitivity Test Of Altp Via High-temperature Blackbody Radi...mentioning

confidence: 67%

“…Tests on the subsonic hot air jet's hysteresis point yielded good agreement, offering a new method for testing the thermal parameters of engine combustion chambers and hypersonic vehicle surfaces [13]. Recent work by Chen, X et al prepared an ALTP heat flux sensor with a sensitivity of 0.017 mV/(kW/m 2 ), though they did not discuss the thermoelectric output characteristics of the sensor under thermal convection boundaries [14]. Chen Suyu's comparative calibration of ALTP through shock wind tunnel experiments produced relatively stable measurements under varying flow field parameters [15], despite the high cost of such experimentation.…”

Section: Introductionmentioning

confidence: 99%

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Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Li,

Wang,

Yin

et al. 2023

Electronics

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Traditional contact heat flux sensors suffer from a lack of dynamic performance, and existing non-contact optical heat measurement equipment fails to detect convective heat transfer effectively. This limitation precludes the effective testing of composite heat flux in explosive fields. This study introduces an ultra-responsive atomic layer thermopile (ALTP) heat flux sensor, developed and employed for the first time, to evaluate the transient heat flux associated with thermobaric explosions. Measurements reveal that the ALTP sensor’s temporal resolution surpasses that of the thermal resistance thin film heat flux sensor (TFHF), attaining a spectral response time of 10 μs under pulsed laser irradiation. Beyond these radiation-based tests, the present work also conducted novel simulation analyses of high-temperature jet impacts using COMSOL software. Static simulation discovered that fluid velocity significantly influences ALTP’s sensitivity, resulting in an error of 71%. Conversely, dynamic simulation demonstrated that an increase in fluid velocity reduces the ALTP’s time constant, whereas other factors such as fluid temperature exert minimal impact on its dynamic characteristics. This confirms that the simulation model compensates for the cost and accuracy deficiencies of convection heating tests. It also provides a new way to analyze the error of explosive heat flux measurement caused by sensitivity fluctuation and insufficient dynamic performance. In thermobaric explosive trials, the maximum heat fluxes recorded were 202 kW/m2 in semi-enclosed environments and 526 kW/m2 in open environments. A distinctive double-wave phenomenon was evident in the test curve. By a fast-response thermocouple, the study was able to differentiate between radiation and convective heat flux in the explosion field. The findings substantiate that the ALTP sensor amalgamates the benefits of optical thermal measurement tools with those of traditional contact heat flux sensors, thereby facilitating composite heat flux measurements in the challenging conditions of an explosive field.

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Section: Sensitivity Test Of Altp Via High-temperature Blackbody Radi...mentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Li,

Wang,

Yin

et al. 2023

Electronics

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“…ΔT is the temperature difference between the top and bottom of the film. Considerable researches on the LITV effect have been conducted in various material systems, including high-temperature superconducting oxides like YBa 2 Cu 3 O 7-δ [7,8], La 2−x Sr x CuO 4 [9], and Bi 2 Sr 2 CaCu 2 O 8 [10], perovskite-type and doped materials such as La 0.67 Ca 0.33 MnO 3 [3,4], La 1−x Pb x MnO 3 [11], La 1−x Sr x CoO 3 [12][13][14], and SrTi 1−x Nb x O 3 [15], as well as layered cobalt-based oxides like Ca x CoO 2 [16], Na x CoO 2 [17], and Bi 2 Sr 2 Co 2 O y [18]. SrTiO 3 (STO), belonging to perovskite structural materials, has received significant attention due to its excellent mechanical properties and thermal stability [19].…”

Section: Introductionmentioning

confidence: 99%

Laser-induced transverse voltage effect in c-axis inclined La_xSr_1−xTiO₃ thin films prepared by MOCVD

Xie,

Tao,

Zhao

et al. 2024

Nanotechnology

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The light/thermal detector based on the laser-induced transverse voltage (LITV) effect has garnered significant interest for its rapid and broad spectral response. In this study, we prepared the La-doped STO epitaxial thin films on the 12° inclined single crystal LaAlO3(LAO) (100) substrates using our home-designed metal-organic chemical vapor deposition (MOCVD) system. Under the illumination of a 248nm laser, the LITV signals of LaxSr1-xTiO3 films were observed and showed dependence on the La doping level, which can be explained by the changes in the light absorption coefficient, thermal conductivity, and optical penetration depth. The optimized LITV signal was observed with a peak voltage of 23.25V and a decay time of 106ns under the laser power density of 1.0mJ/mm2. The high peak voltage and fast response time of LaxSr1-xTiO3 show great potential in the field of light/thermal detection.

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The Rise of Nanotechnology in Pharmaceutical and Healthcare Packaging: Applications and Future Prospective

Bumbudsanpharoke,

Harnkarnsujarit,

Gilchrist

et al. 2024

Packag Technol Sci

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Advanced nanotechnology, an emerging technology of nanoscale materials, has been rapidly expanding in the pharmaceutical and healthcare packaging industries to protect drug performance and ensure consumer safety as the primary goals. The review commences by establishing the fundamental principles of pharmaceutical packaging. It then delves into the diverse applications of nanotechnology for both enteral and parenteral dosage forms. A broad spectrum of nanomaterials is explored, ranging from established options like noble metal and polysaccharide‐based nanoparticles to cutting‐edge materials such as rare earth metal complexes and carbon dots. Furthermore, the review highlights the potent functionalities enabled by nanotechnology. These functionalities encompass anti‐counterfeiting measures utilizing holograms and photoluminescent topcoats, tracking and monitoring capabilities facilitated by radio frequency identification (RFID) tags, and colorimetric indicators for drug integrity. Additionally, the review discusses commercially available products, acknowledges safety considerations and regulatory frameworks, and concludes by outlining the future prospects of nanotechnology in pharmaceutical and healthcare packaging.

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The atomic layer thermopile heat flux sensor based on the inclined epitaxial YBa2Cu3O7-δ films

Cited by 21 publications

References 5 publications

Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Laser-induced transverse voltage effect in c-axis inclined La_xSr_1−xTiO₃ thin films prepared by MOCVD

The Rise of Nanotechnology in Pharmaceutical and Healthcare Packaging: Applications and Future Prospective

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The atomic layer thermopile heat flux sensor based on the inclined epitaxial YBa2Cu3O7-δ films

Cited by 21 publications

References 5 publications

Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Development and Performance Analysis of an Atomic Layer Thermopile Sensor for Composite Heat Flux Testing in an Explosive Environment

Laser-induced transverse voltage effect in c-axis inclined La x Sr1−x TiO3 thin films prepared by MOCVD

The Rise of Nanotechnology in Pharmaceutical and Healthcare Packaging: Applications and Future Prospective

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Product

Resources

About

Laser-induced transverse voltage effect in c-axis inclined La_xSr_1−xTiO₃ thin films prepared by MOCVD