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Ferrite-based room temperature negative temperature coefficient printed thermistors
Two screen printing inks were developed for the low-temperature fabrication of printed and flexible thick film negative temperature coefficient (NTC) thermistors able to operate at room temperature. The first of the two screen printing inks developed utilised cobalt ferrite (CoFe2O4) as the temperat...
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| Main Authors: | , , , , |
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| Format: | Default Article |
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2020
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| Online Access: | https://hdl.handle.net/2134/13013807.v1 |
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| _version_ | 1805987759376039936 |
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| author | Jack McGhee Jagdeep Sagu Darren Southee Peter SA Evans Upul Wijayantha-Kahagala-Gamage |
| author_facet | Jack McGhee Jagdeep Sagu Darren Southee Peter SA Evans Upul Wijayantha-Kahagala-Gamage |
| author_sort | Jack McGhee (6618125) |
| collection | Figshare |
| description | Two screen printing inks were developed for the low-temperature fabrication of printed and flexible thick film negative temperature coefficient (NTC) thermistors able to operate at room temperature. The first of the two screen printing inks developed utilised cobalt ferrite (CoFe2O4) as the temperature sensing material with the second ink incorporating manganese ferrite (MnFe2O4). These were then screen printed onto lithographically printed silver interdigitated electrodes with a 200-micron track and gap using a synthetic paper (Teslin) as the substrate. The inks required a 10-minute curing step at 80oC. Preannealing of the ferrite powders before ink formulation enabled the avoidance of high-temperature processing post-fabrication typically required in industrial thermistor production. The printed thermistors were tested at a controlled constant humidity between 15 and 50oC. Both materials demonstrated typical natural logarithmic responses with high linearity and sensitivity. |
| format | Default Article |
| id | rr-article-13013807 |
| institution | Loughborough University |
| publishDate | 2020 |
| record_format | Figshare |
| spelling | rr-article-130138072020-10-29T00:00:00Z Ferrite-based room temperature negative temperature coefficient printed thermistors Jack McGhee (6618125) Jagdeep Sagu (1260576) Darren Southee (1251114) Peter SA Evans (9426470) Upul Wijayantha-Kahagala-Gamage (1248345) Artificial intelligence not elsewhere classified Electrical & Electronic Engineering Electrical and Electronic Engineering Communications Technologies Artificial Intelligence and Image Processing Two screen printing inks were developed for the low-temperature fabrication of printed and flexible thick film negative temperature coefficient (NTC) thermistors able to operate at room temperature. The first of the two screen printing inks developed utilised cobalt ferrite (CoFe<sub>2</sub>O<sub>4</sub>) as the temperature sensing material with the second ink incorporating manganese ferrite (MnFe<sub>2</sub>O<sub>4</sub>). These were then screen printed onto lithographically printed silver interdigitated electrodes with a 200-micron track and gap using a synthetic paper (Teslin) as the substrate. The inks required a 10-minute curing step at 80<sup>o</sup>C. Preannealing of the ferrite powders before ink formulation enabled the avoidance of high-temperature processing post-fabrication typically required in industrial thermistor production. The printed thermistors were tested at a controlled constant humidity between 15 and 50<sup>o</sup>C. Both materials demonstrated typical natural logarithmic responses with high linearity and sensitivity.<br> 2020-10-29T00:00:00Z Text Journal contribution 2134/13013807.v1 https://figshare.com/articles/journal_contribution/Ferrite-based_room_temperature_negative_temperature_coefficient_printed_thermistors/13013807 CC BY-NC-ND 4.0 |
| spellingShingle | Artificial intelligence not elsewhere classified Electrical & Electronic Engineering Electrical and Electronic Engineering Communications Technologies Artificial Intelligence and Image Processing Jack McGhee Jagdeep Sagu Darren Southee Peter SA Evans Upul Wijayantha-Kahagala-Gamage Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title | Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title_full | Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title_fullStr | Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title_full_unstemmed | Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title_short | Ferrite-based room temperature negative temperature coefficient printed thermistors |
| title_sort | ferrite-based room temperature negative temperature coefficient printed thermistors |
| topic | Artificial intelligence not elsewhere classified Electrical & Electronic Engineering Electrical and Electronic Engineering Communications Technologies Artificial Intelligence and Image Processing |
| url | https://hdl.handle.net/2134/13013807.v1 |