Synthesis and thermal conductivities of ZnIn<inf>2</inf>Te<inf>4</inf>and CdIn<inf>2</inf>Te<inf>4</inf>with defect-chalcopyrite structure

• Main Authors: Tawat Suriwong, Ken Kurosaki, Somchai Thongtem, Adul Harnwunggmoung, Theerayuth Plirdpring, Tohru Sugahara, Yuji Ohishi, Hiroaki Muta, Shinsuke Yamanaka
• Format: Journal
• Published: 2018
• Subjects: Engineering; Materials Science
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79957972482&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/49962
• Institution: Chiang Mai University

ZnIn2Te4and CdIn2Te4have a defect-chalcopyrite tetragonal crystal structure with structural vacancies. In order to investigate the effects of vacancies on the lattice thermal conductivity (κlat), single phase samples of ZnIn2Te4and CdIn2Te4were synthesized and their κlatvalues were examined in the temperature range from room temperature to 850 K. The κlatdata for ZnIn2Te4and CdIn2Te4were 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.