{"title":"Thermoelectric power generation based on p-Sb2Te3 / n-Bi2Te3 modules as prepared by Spark Plasma Sintering","authors":"Surasak Ruamruk , Atsuko Kosuga , Ryoji Funahashi , Wanatchaporn Namhongsa , Ronariddh Nakhowong , Athorn Vora-ud , Somporn Thaowonkaew , Tosawat Seetawan , Anek Charoenphakdee","doi":"10.1016/j.matlet.2025.138984","DOIUrl":null,"url":null,"abstract":"<div><div>In this work, the thermoelectric (TE) modules of <em>p</em>-Sb<sub>2</sub>Te<sub>3</sub> and <em>n</em>-Bi<sub>2</sub>Te<sub>3</sub> were fabricated by using the Spark Plasma Sintering (SPS) process. Based on TE properties measurement, the <em>zT</em> value was calculated to be achieved of 0.89 for Sb<sub>2</sub>Te<sub>3</sub> and 0.70 for Bi<sub>2</sub>Te<sub>3</sub> at 523 K. A thermoelectric generator (TEG) module comprising eight p–n couples was fabricated and tested, achieving a maximum electrical power output of approximately 0.37 W at the temperature difference of 473 K.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 138984"},"PeriodicalIF":2.7000,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25010134","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, the thermoelectric (TE) modules of p-Sb2Te3 and n-Bi2Te3 were fabricated by using the Spark Plasma Sintering (SPS) process. Based on TE properties measurement, the zT value was calculated to be achieved of 0.89 for Sb2Te3 and 0.70 for Bi2Te3 at 523 K. A thermoelectric generator (TEG) module comprising eight p–n couples was fabricated and tested, achieving a maximum electrical power output of approximately 0.37 W at the temperature difference of 473 K.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive