https://scholars.lib.ntu.edu.tw/handle/123456789/628939
標題: | Effect of Solution Aging on Temperature Sensitivity of CNT/PEDOT:PSS | 作者: | Tsai, TW Ni, IC CHIH-I WU I-CHUN CHENG JIAN-ZHANG CHEN |
關鍵字: | carbon nanotube (CNT); poly(3; 4-ethylenedioxythiophene); poly(styrenesulfonate) (PEDOT; PSS); temperature coefficient of resistance (TCR); temperature index (TI); aging; THERMOELECTRIC PROPERTIES; SENSOR; PEDOTPSS; COEFFICIENT; COMPOSITES; SUBSTRATE; FILMS; POWER; PSS | 公開日期: | 2023 | 出版社: | ELECTROCHEMICAL SOC INC | 卷: | 12 | 期: | 2 | 來源出版物: | ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY | 摘要: | This study fabricated temperature sensors with a mixture of carbon nanotube (CNT) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). CNT/PEDOT:PSS solutions with three different ratios—1/5, 1/9, and 1/13—prepared and aged for 0, 3, and 6 days. The temperature sensor was fabricated by drop-casting the aged solution onto a flexible polydimethylsiloxane (PDMS) substrate. As the aging time of CNT/PEDOT:PSS solutions with ratios of 1/5, 1/9, and 1/13 increased to 6 days, the temperature coefficient of resistance (TCR) of CNT/PEDOT:PSS decreased from −1.97, −1.99, and −2.15 (%/°C) to −2.80, −2.61, and −2.51 (%/°C) (i.e. temperature sensitivity increased) and temperature index (TI) also increased from 2242.5, 2249.1, and 2503.8 (K) to 3530.1, 3085.7, and 3002.5 (K), respectively. As the aging time of CNT/PEDOT:PSS solution increased to 6 days, its Seebeck coefficient increased from 52.4 to 114.5 μV K−1. These results show that the aging of CNT/PEDOT:PSS solution significantly increased the temperature sensitivity and Seebeck coefficient via the dedoping of PEDOT:PSS. This serves as a facile method to improve the temperature sensitivity of the CNT/PEDOT:PSS composite. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/628939 | ISSN: | 2162-8769 | DOI: | 10.1149/2162-8777/acb56e |
顯示於: | 應用力學研究所 |
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