Ba<sub>4</sub>Ge<sub>2</sub>Sb<sub>2</sub>Te<sub>8</sub>Se<sub>2</sub> and Ba<sub>2</sub>Ge<sub>2</sub>Te<sub>4.5</sub>Se<sub>0.5</sub>: complex heteroanionic Ge-containing phases with extremely low thermal conductivities
We report syntheses and detailed structural analyses of two novel phases, Ba 4 Ge 2 Sb 2 Te 8 Se 2 and Ba 2 Ge 2 Te 4.5 Se 0.5 , having extremely low k tot . Both phases are p-type semimetals with Ba 2 Ge 2 Te 4.5 Se 0.5 showing a metal-to-insulator transition below 20 K.
Authors
- Sweta Yadav (ORCID: https://orcid.org/0000-0001-7245-2426)
- Swati
- Jai Prakash (ORCID: https://orcid.org/0000-0002-4078-9662)
Institutions
- Indian Institute of Technology Hyderabad (IN)
Publication Details
- Journal
- New Journal of Chemistry
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5nj01642h
- Primary Topic
- Advanced Thermoelectric Materials and Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Council of Scientific and Industrial Research, India
- Science and Engineering Research Board