Jung, Sung-Jin Shin, Joonchul Lim, Sang-Soon Kwon, Beomjin Baek, Seung-Hyub Kim, Seong Keun Park, Hyung-Ho Kim, Jin-Sang 2024-01-19T15:05:27Z 2024-01-19T15:05:27Z 2021-09-05 2021-03 2211-2855 https://pubs.kist.re.kr/handle/201004/117330 Flexible thermoelectric modules (TEMs) are often built with a polymer filler as structural support. However, the filler may serve as a thermal bypass, leading to reduced temperature difference across a TEM and degradation of the output. Herein, we present flexible TEMs made of porous PDMS fillers and Bi2Te3-based thermoelectric legs. The heat conduction through the filler is suppressed by leveraging the low thermal conductivity of porous PDMS (0.08 W/m.K), leading to an increase in the temperature difference across the TEMs. The porous PDMS TEM exhibits 23% enhanced power density and a figure of merit (ZT) of 0.75 around the room temperature. Lastly, the efficacy of the porous PDMS TEM is demonstrated by testing the TEMs with body heat. Our approach would offer a promising insight into the flexible TEM designs. English ELSEVIER Porous organic filler for high efficiency of flexible thermoelectric generator Article 10.1016/j.nanoen.2020.105604 1 NANO ENERGY, v.81 NANO ENERGY 81 scie scopus 000620327600004 2-s2.0-85096707673 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article BODY HEAT POWER GENERATOR DESIGN Flexible thermoelectric module Porous PDMS filler Low thermal conductivity Bi2Te3 Filler thickness