Year: 2021
Type: article
Abstract: Mobile ion-enabled phenomena make β-Zn4Sb3 a promising material in terms of the re-entry phase instability behavior, mixed electronic ionic conduction, and thermoelectric performance. Here, we utilize the fast Zn2+ migration under a sawtooth waveform electric field and a dynamical growth of 3-dimensional ionic conduction network to achieve ultra-fast synthesis of β-Zn4Sb3. Moreover, the interplay between the mobile ions, electric field, and temperature field gives rise to exquisite core-shell crystalline-amorphous microstructures that self-adaptively stabilize β-Zn4Sb3. Doping Cd or Ge on the Zn site as steric hindrance further stabilizes β-Zn4Sb3 by restricting long-range Zn2+ migration and extends the operation temperature range of high thermoelectric performance. These results provide insight into the development of mixed-conduction thermoelectric materials, batteries, and other functional materials.
Source: Nature Communications
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,560
Funders: National Science Foundation, National Natural Science Foundation of China, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Higher Education Discipline Innovation Project, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities, Division of Materials Research
Awards: 缺陷调控构筑锂/钠离子电池正极氧化物及原位电镜研究, G1474490597, G2201357623, G2354291835, G26124621, G2632258355, G3355789943, G3395203746, G3716463092, G388328189, G3979552171, G4213379185, Understanding and Manipulating Charge and Entropy Flows in Layered Structured Transition Metal Dichalcogenides by and for Thermoelectricity: A Multi-scale Materials Chem. Approach, G448005552, G4820158340, G5063251046, G5232478654, G5827708927, G6064634274, G6132552952, G6495403329, G7411414827, G7521700432, G8355886144, G8684790752, G8693376554
OpenAlex ID: W3206789624