Synthesis and thermal conductivities of ZnIn 2Te 4 and CdIn 2Te 4 with defect-chalcopyrite structure

• Main Authors: Suriwong T., Kurosaki K., Thongtem S., Harnwunggmoung A., Plirdpring T., Sugahara T., Ohishi Y., Muta H., Yamanaka S.
• 格式: Article
• 語言: English
• 出版: 2014
• 在線閱讀: http://www.scopus.com/inward/record.url?eid=2-s2.0-79957972482&partnerID=40&md5=3bd86f686974e4f19b3e964dbbe0f0a9; http://cmuir.cmu.ac.th/handle/6653943832/6523

ZnIn 2Te 4 and CdIn 2Te 4 have a defect-chalcopyrite tetragonal crystal structure with structural vacancies. In order to investigate the effects of vacancies on the lattice thermal conductivity (κ lat), single phase samples of ZnIn 2Te 4 and CdIn 2Te 4 were synthesized and their κ lat values were examined in the temperature range from room temperature to 850 K. The κ lat data for ZnIn 2Te 4 and CdIn 2Te 4 were compared with those of Zn- and Cd-series chalcopyrite compounds with no vacancies. The results revealed that the presence of vacancies alone in the defect-chalcopyrite structure does not result in effective phonon scattering. © 2011 Elsevier B.V. All rights reserved.