Li Sun, Dong-Wei Ao, Junphil Hwang, Qin Liu, En-Si Cao, Bing Sun
{"title":"实现用于发电的高热电性能柔性独立式 PEDOT:PSS/Bi0.5Sb1.5Te3 复合薄膜","authors":"Li Sun, Dong-Wei Ao, Junphil Hwang, Qin Liu, En-Si Cao, Bing Sun","doi":"10.1007/s12598-024-02860-0","DOIUrl":null,"url":null,"abstract":"<div><p>Flexible thermoelectrics provide a distinct solution for developing sustainable and portable power supplies. Inorganic/organic material compositing is an effective strategy to induce a significant enhancement of thermoelectric (TE) performance. However, the poor electrical performance of inorganic/organic material is attributed to the poor carrier transport between organic/inorganic interfaces induced by the low contribution of composited inorganic materials. Herein, we prepared a high room temperature figure-of-merit (<i>ZT</i>) value of ~ 0.19 and high bending resistance (surviving 1200 bending cycles at the bending radius of 16.5 mm) of p-type poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> free-standing composite film via a facile vacuum-assisted filtration approach. Compositing Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> nano-spherical particles into PEDOT:PSS results in the optimized interfacial contact and carrier concentration, leading to a high Seebeck coefficient of ~ 43.79 μV·K<sup>−1</sup>. Accordingly, a high-power factor of ~ 1.52 μW·cm<sup>−1</sup>·K<sup>−2</sup> is achieved in the PEDOT:PSS/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> composite film at room temperature. In addition, the PEDOT:PSS/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> interfaces with phase boundaries, nanograins and point defects could further decrease the thermal conductivity to ~ 0.20 W·m<sup>−1</sup>·K<sup>−1</sup>, leading to a high <i>ZT</i> value. Furthermore, a 6-leg free-standing film device was assembled, which provided an output power of 44.94 nW. This study demonstrates that free-standing organic/inorganic composite films are effective power sources for wearable electronic products.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Realizing high thermoelectric performance flexible free-standing PEDOT:PSS/Bi0.5Sb1.5Te3 composite films for power generation\",\"authors\":\"Li Sun, Dong-Wei Ao, Junphil Hwang, Qin Liu, En-Si Cao, Bing Sun\",\"doi\":\"10.1007/s12598-024-02860-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Flexible thermoelectrics provide a distinct solution for developing sustainable and portable power supplies. Inorganic/organic material compositing is an effective strategy to induce a significant enhancement of thermoelectric (TE) performance. However, the poor electrical performance of inorganic/organic material is attributed to the poor carrier transport between organic/inorganic interfaces induced by the low contribution of composited inorganic materials. Herein, we prepared a high room temperature figure-of-merit (<i>ZT</i>) value of ~ 0.19 and high bending resistance (surviving 1200 bending cycles at the bending radius of 16.5 mm) of p-type poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> free-standing composite film via a facile vacuum-assisted filtration approach. Compositing Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> nano-spherical particles into PEDOT:PSS results in the optimized interfacial contact and carrier concentration, leading to a high Seebeck coefficient of ~ 43.79 μV·K<sup>−1</sup>. Accordingly, a high-power factor of ~ 1.52 μW·cm<sup>−1</sup>·K<sup>−2</sup> is achieved in the PEDOT:PSS/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> composite film at room temperature. In addition, the PEDOT:PSS/Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> interfaces with phase boundaries, nanograins and point defects could further decrease the thermal conductivity to ~ 0.20 W·m<sup>−1</sup>·K<sup>−1</sup>, leading to a high <i>ZT</i> value. Furthermore, a 6-leg free-standing film device was assembled, which provided an output power of 44.94 nW. This study demonstrates that free-standing organic/inorganic composite films are effective power sources for wearable electronic products.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":749,\"journal\":{\"name\":\"Rare Metals\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rare Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12598-024-02860-0\",\"RegionNum\":1,\"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":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-02860-0","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Realizing high thermoelectric performance flexible free-standing PEDOT:PSS/Bi0.5Sb1.5Te3 composite films for power generation
Flexible thermoelectrics provide a distinct solution for developing sustainable and portable power supplies. Inorganic/organic material compositing is an effective strategy to induce a significant enhancement of thermoelectric (TE) performance. However, the poor electrical performance of inorganic/organic material is attributed to the poor carrier transport between organic/inorganic interfaces induced by the low contribution of composited inorganic materials. Herein, we prepared a high room temperature figure-of-merit (ZT) value of ~ 0.19 and high bending resistance (surviving 1200 bending cycles at the bending radius of 16.5 mm) of p-type poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)/Bi0.5Sb1.5Te3 free-standing composite film via a facile vacuum-assisted filtration approach. Compositing Bi0.5Sb1.5Te3 nano-spherical particles into PEDOT:PSS results in the optimized interfacial contact and carrier concentration, leading to a high Seebeck coefficient of ~ 43.79 μV·K−1. Accordingly, a high-power factor of ~ 1.52 μW·cm−1·K−2 is achieved in the PEDOT:PSS/Bi0.5Sb1.5Te3 composite film at room temperature. In addition, the PEDOT:PSS/Bi0.5Sb1.5Te3 interfaces with phase boundaries, nanograins and point defects could further decrease the thermal conductivity to ~ 0.20 W·m−1·K−1, leading to a high ZT value. Furthermore, a 6-leg free-standing film device was assembled, which provided an output power of 44.94 nW. This study demonstrates that free-standing organic/inorganic composite films are effective power sources for wearable electronic products.
期刊介绍:
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.