دورية أكاديمية
Contact‐Based and Proximally Thermosensitive Few‐Layer Graphene Ntc Thermistors with Highly Fast Switching Behavior
| العنوان: | Contact‐Based and Proximally Thermosensitive Few‐Layer Graphene Ntc Thermistors with Highly Fast Switching Behavior |
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| المؤلفون: | Muhammad Umar, Farid Sayar Irani, Seyed Sajjad Mirbakht, Murat Kaya Yapici |
| المصدر: | Advanced Electronic Materials, Vol 10, Iss 4, Pp n/a-n/a (2024) |
| بيانات النشر: | Wiley-VCH, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Electric apparatus and materials. Electric circuits. Electric networks LCC:Physics |
| مصطلحات موضوعية: | fast thermal switching, integrated graphene, NTC, PCB integration, SU‐8, thermistor, Electric apparatus and materials. Electric circuits. Electric networks, TK452-454.4, Physics, QC1-999 |
| الوصف: | Abstract Patterning graphene onto polymeric materials offers benefits in realizing flexible, stretchable, and wearable multifunctional electrodes. However, the employed integration approaches and use of non‐patternable polymers hinder the patterning of graphene at the sub‐millimeter (mm) scale. Serpentine‐shaped thermally active graphene patterns (thermistors) of 500 × 500 µm2 area are reported by the seamless integration of chemical vapor‐deposited graphene (GCVD) into readily available SU‐8 polymer with MEMS‐compatible cleanroom fabrication processes. The thermistor resistance decreases with an increase in graphene temperature changed by local heat conduction or environmental thermal radiations; hence, exhibits a negative temperature coefficient (NTC) of resistance of 0.0012/°C. Furthermore, very fast resistive switching with 1 s response and 3.2 s recovery time is observed under cyclic heating and cooling. Several application scenarios including, monitoring of surface temperature (e.g., kettle and human body), rapid response (0.25 s) to heat conduction and radiations (0.5 s) from human finger at room temperature for contact and touch‐free proximity switching (e.g., turn ON and OFF an LCD display) are demonstrated. Moreover, owing to its small area less than a ceramic resistor enabled to integrate the fabricated thermistor onto a printed circuit board (PCB) to construct a fully packaged thermometer to monitor ambient temperature. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2199-160X |
| Relation: | https://doaj.org/toc/2199-160X |
| DOI: | 10.1002/aelm.202300723 |
| URL الوصول: | https://doaj.org/article/70b9fac97bbe4ca8a2627b75283a299a |
| رقم الأكسشن: | edsdoj.70b9fac97bbe4ca8a2627b75283a299a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 2199160X |
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| DOI: | 10.1002/aelm.202300723 |