Multi-walled carbon nano-tubes for performance enhancement of thin film heat flux sensors

The measurement of thermal properties or internal or external boundary conditions requires temperature and heat flux data. Both information can be provided by heat flux sensors. The one consisting in measuring temperature at various locations within the wall and using inverse method to estimate wall temperature and heat flux is among those providing the lowest measurement bias for transient heat flux measurement. However, this very accurate sensor requires time consuming technical work for microthermocouples implementation and due to the welding, one cannot locate precisely the temperature measurement. The idea developed in this work is to replace the wire microthermocouples by thin film resistance temperature detectors deposited on polymer substrate in order to ease the fabrication and to increase the accuracy of heat flux sensor. As the deposited sensors are RTDs, a preliminary study is performed showing the effect of the metal as well as the processing conditions on the electrical resistivity and temperature coefficient of copper and aluminum thin film

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Experimental validation of a numerical code by thin film heat flux sensors for the resolution of thermal bridges in dynamic conditions

Applied Energy ◽

10.1016/j.apenergy.2014.03.014 ◽

2014 ◽

Vol 124 ◽

pp. 213-222 ◽

Cited By ~ 22

Author(s):

Fabrizio Ascione ◽

Nicola Bianco ◽

Rosa Francesca De Masi ◽

Gerardo Maria Mauro ◽

Marilena Musto ◽

...

Keyword(s):

Thin Film ◽

Heat Flux ◽

Experimental Validation ◽

Numerical Code ◽

Dynamic Conditions ◽

Heat Flux Sensors ◽

Thermal Bridges

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Novel thin-film heat flux sensors

10.2514/6.1992-5035 ◽

1992 ◽

Cited By ~ 4

Author(s):

HEMANSHU BHATT ◽

MARY ZELLER ◽

HERBERT WILL

Keyword(s):

Thin Film ◽

Heat Flux ◽

Heat Flux Sensors

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Thin film heat flux sensors for accurate transient and unidirectional heat transfer analysis

Journal of Physics Conference Series ◽

10.1088/1742-6596/395/1/012084 ◽

2012 ◽

Vol 395 ◽

pp. 012084 ◽

Cited By ~ 3

Author(s):

B Azerou ◽

B Garnier ◽

J Lahmar

Keyword(s):

Thin Film ◽

Heat Transfer ◽

Heat Flux ◽

Heat Transfer Analysis ◽

Heat Flux Sensors

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Thin film heat flux sensors fabricated on copper substrates for thermal measurements in microfluidic environments

Journal of Micromechanics and Microengineering ◽

10.1088/0960-1317/24/12/125018 ◽

2014 ◽

Vol 24 (12) ◽

pp. 125018 ◽

Cited By ~ 5

Author(s):

Benjamin A Jasperson ◽

Joshua Schmale ◽

Weilin Qu ◽

Frank E Pfefferkorn ◽

Kevin T Turner

Keyword(s):

Thin Film ◽

Heat Flux ◽

Heat Flux Sensors ◽

Thermal Measurements

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Design, fabrication and characterization of high temperature thin film heat flux sensors

Microelectronic Engineering ◽

10.1016/j.mee.2019.111128 ◽

2019 ◽

Vol 217 ◽

pp. 111128

Author(s):

Congchun Zhang ◽

Jianze Huang ◽

Juan Li ◽

Shenyong Yang ◽

Guifu Ding ◽

...

Keyword(s):

Thin Film ◽

Heat Flux ◽

High Temperature ◽

Heat Flux Sensors ◽

Fabrication And Characterization

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Effective performance improvement of organic thin film transistors with multi-layer modifications

The European Physical Journal Applied Physics ◽

10.1051/epjap/2020200138 ◽

2020 ◽

Vol 91 (3) ◽

pp. 30201

Author(s):

Hang Yu ◽

Jianlin Zhou ◽

Yuanyuan Hao ◽

Yao Ni

Keyword(s):

Thin Film ◽

Thin Film Transistors ◽

Performance Enhancement ◽

Organic Thin Film Transistors ◽

Electrical Performance ◽

Hole Injection ◽

Organic Thin Film ◽

Effective Performance ◽

Significant Performance ◽

P Type

Organic thin film transistors (OTFTs) based on dioctylbenzothienobenzothiophene (C8BTBT) and copper (Cu) electrodes were fabricated. For improving the electrical performance of the original devices, the different modifications were attempted to insert in three different positions including semiconductor/electrode interface, semiconductor bulk inside and semiconductor/insulator interface. In detail, 4,4′,4′′-tris[3-methylpheny(phenyl)amino] triphenylamine (m-MTDATA) was applied between C8BTBTand Cu electrodes as hole injection layer (HIL). Moreover, the fluorinated copper phthalo-cyanine (F16CuPc) was inserted in C8BTBT/SiO2 interface to form F16CuPc/C8BTBT heterojunction or C8BTBT bulk to form C8BTBT/F16CuPc/C8BTBT sandwich configuration. Our experiment shows that, the sandwich structured OTFTs have a significant performance enhancement when appropriate thickness modification is chosen, comparing with original C8BTBT devices. Then, even the low work function metal Cu was applied, a normal p-type operate-mode C8BTBT-OTFT with mobility as high as 2.56 cm2/Vs has been fabricated.

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