Guo Liang Goh , Haisheng Li , Xiang Yun Debbie Soo , Guanbo Chen , Seng Ann Sia , Samantha Faye Duran Solco , Dorsasadat Safanama , Samuel Lee , Yefei Li , Danwei Zhang , Wai Yee Yeong
{"title":"气溶胶喷射印刷碲化铋纳米线和强脉冲光烧结柔性热电能量收集装置","authors":"Guo Liang Goh , Haisheng Li , Xiang Yun Debbie Soo , Guanbo Chen , Seng Ann Sia , Samantha Faye Duran Solco , Dorsasadat Safanama , Samuel Lee , Yefei Li , Danwei Zhang , Wai Yee Yeong","doi":"10.1016/j.matdes.2025.114828","DOIUrl":null,"url":null,"abstract":"<div><div>Flexible thermoelectric devices offer great promise in converting waste energy into electrical energy for wearable electronics, soft robotics, and bendable sensor systems. In this work, we report the scalable fabrication of flexible thermoelectric films by aerosol jet printing of Bi<sub>2</sub>Te<sub>3</sub>-based nanowires onto a PLA nanofiber-based substrate, followed by optimized intense pulsed light (IPL) sintering. We optimized atomizer, ink, and sheath flows, as well as print speed, to ensure uniform and precise pattern deposition. Optical and SEM analyses revealed that the as-printed films form an intertwined, agglomerated network. This network is distinct from the aligned nanowires observed in drop-cast samples. The difference likely arises from the high shear forces and rapid solvent evaporation inherent to the aerosol jet process. Subsequent IPL sintering, performed at an optimized sintering distance and number of pulses, effectively densified the films without damaging the underlying PLA nanofiber on the substrate. These enhancements in film morphology and densification are crucial for minimizing interparticle resistance and promoting efficient carrier transport, ultimately boosting the thermoelectric performance. This study demonstrates a promising approach for the fabrication of high-resolution, flexible thermoelectric devices suitable for powering next-generation flexible Internet of things (IoT) devices by tapping on waste heat energy.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"259 ","pages":"Article 114828"},"PeriodicalIF":7.9000,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Flexible thermoelectric energy harvesting devices via aerosol jet printed bismuth telluride (Bi2Te3) nanowires and intense pulsed light sintering\",\"authors\":\"Guo Liang Goh , Haisheng Li , Xiang Yun Debbie Soo , Guanbo Chen , Seng Ann Sia , Samantha Faye Duran Solco , Dorsasadat Safanama , Samuel Lee , Yefei Li , Danwei Zhang , Wai Yee Yeong\",\"doi\":\"10.1016/j.matdes.2025.114828\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Flexible thermoelectric devices offer great promise in converting waste energy into electrical energy for wearable electronics, soft robotics, and bendable sensor systems. In this work, we report the scalable fabrication of flexible thermoelectric films by aerosol jet printing of Bi<sub>2</sub>Te<sub>3</sub>-based nanowires onto a PLA nanofiber-based substrate, followed by optimized intense pulsed light (IPL) sintering. We optimized atomizer, ink, and sheath flows, as well as print speed, to ensure uniform and precise pattern deposition. Optical and SEM analyses revealed that the as-printed films form an intertwined, agglomerated network. This network is distinct from the aligned nanowires observed in drop-cast samples. The difference likely arises from the high shear forces and rapid solvent evaporation inherent to the aerosol jet process. Subsequent IPL sintering, performed at an optimized sintering distance and number of pulses, effectively densified the films without damaging the underlying PLA nanofiber on the substrate. These enhancements in film morphology and densification are crucial for minimizing interparticle resistance and promoting efficient carrier transport, ultimately boosting the thermoelectric performance. This study demonstrates a promising approach for the fabrication of high-resolution, flexible thermoelectric devices suitable for powering next-generation flexible Internet of things (IoT) devices by tapping on waste heat energy.</div></div>\",\"PeriodicalId\":383,\"journal\":{\"name\":\"Materials & Design\",\"volume\":\"259 \",\"pages\":\"Article 114828\"},\"PeriodicalIF\":7.9000,\"publicationDate\":\"2025-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials & Design\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0264127525012481\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials & Design","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0264127525012481","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Flexible thermoelectric energy harvesting devices via aerosol jet printed bismuth telluride (Bi2Te3) nanowires and intense pulsed light sintering
Flexible thermoelectric devices offer great promise in converting waste energy into electrical energy for wearable electronics, soft robotics, and bendable sensor systems. In this work, we report the scalable fabrication of flexible thermoelectric films by aerosol jet printing of Bi2Te3-based nanowires onto a PLA nanofiber-based substrate, followed by optimized intense pulsed light (IPL) sintering. We optimized atomizer, ink, and sheath flows, as well as print speed, to ensure uniform and precise pattern deposition. Optical and SEM analyses revealed that the as-printed films form an intertwined, agglomerated network. This network is distinct from the aligned nanowires observed in drop-cast samples. The difference likely arises from the high shear forces and rapid solvent evaporation inherent to the aerosol jet process. Subsequent IPL sintering, performed at an optimized sintering distance and number of pulses, effectively densified the films without damaging the underlying PLA nanofiber on the substrate. These enhancements in film morphology and densification are crucial for minimizing interparticle resistance and promoting efficient carrier transport, ultimately boosting the thermoelectric performance. This study demonstrates a promising approach for the fabrication of high-resolution, flexible thermoelectric devices suitable for powering next-generation flexible Internet of things (IoT) devices by tapping on waste heat energy.
期刊介绍:
Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry.
The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.