期刊
IEEE SENSORS JOURNAL
卷 21, 期 2, 页码 1279-1286出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2020.3018747
关键词
Substrates; Ink; Silver; Temperature measurement; Carbon; Junctions; Temperature sensors; Cost-effective; direct ink writing; organic material; printed thermocouples; seebeck coefficient
资金
- Higher Education Commission of Pakistan through the National Research Programme for Universities (NRPU) [5548]
Thermocouples are widely used for temperature measurement due to their reliability, with this research focusing on the fabrication of thermocouples using carbon and PEDOT: PSS materials to explore their performance. The study found that different materials have similar Seebeck coefficients, and the coefficient is not only material-dependent but also influenced by the electrical properties of the thermocouples.
Thermocouples are abundantly used for temperature measurement in various applications because of their availability and reliability. In this research two different materials, carbon a semiconductor and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS), an organic conductive polymer with silver as a common electrode were used to fabricate thermocouples through a weldless direct ink writing technique. Two different lengths were chosen for thermocouples to validate the effect of change in length on the performance of thermocouples. Each of the printed thermocouples is characterized and the sensitivity of thermocouples also known as the Seebeck coefficient are determined in a temperature range of up to 140 degrees CC. The Seebeck coefficients are found to be 16.6-17 mu V/degrees C for PEDOT:PSS/Silver thermocouples and 15-17.8 mu V/degrees C for carbon/silver thermocouples. These values are comparable to the recently reported numbers for the combination of the said materials. Furthermore, it was found that the Seebeck coefficient is not only material dependent but also influenced by the electrical properties of the printed thermocouples. Each type of printed thermocouple exhibits a stable and linear response towards the temperature change and is comparable to commercially available K-type thermocouple, however, the Seebeck coefficient reported is low when compared to K-type thermocouples due to material differences. Another key finding is the quick response and recovery time of the printed thermocouples as compared to sheath K-type thermocouples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据