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- Progress in research on n-type high performance diamond-like structure thermoelectric materials
- In recent years, with the advancement and development of some new effects and mechanisms of thermoelectric transport, many new high-performance thermoelectric materials have been discovered. Among them, the diamond-like compounds are derived from the diamond structure. Because of the different atomic radius and chemical valence states of the elements, the lattice of the materials is distorted and the cubic structure of the diamond is transformed into non-cubic structure. The intrinsic low thermal conductivity and controllable electrical properties of diamond-like compounds make them promising thermoelectric materials. Since the thermoelectric properties of quaternary compounds Cu2CdSnSe4 and Cu2ZnSnSe4 were first reported by the thermoelectric research team of Shanghai Silicate Research Institute of Chinese Academy of Sciences in 2009, diamond-like compounds have attracted wide attention in the thermoelectric field. So far, more than 20 kinds of diamond-structured compounds have been reported. Thermoelectric properties of many p-type materials are higher than 1, which is comparable to traditional thermoelectric materials. However, the pyroelectric value of n-type diamond-like compounds is generally low, which limits the development of high-efficiency diamond-like compounds thermoelectric devices.
2019-05-28See Details
- Zhang Yongsheng Team of Chinese Academy of Sciences: Progress has been made in the study of low thermal conductivity of thermoelectric materials.
- Recently, Zhang Yongsheng, a researcher in the Institute of Material Computation, Hefei Institute of Solid Physics, Chinese Academy of Sciences, has made new progress in the study of low thermal conductivity of thermoelectric materials.
2019-05-28See Details
- Russia Develops New Materials for Thermoelectric Conversion
- The energy efficiency center of Moscow Iron and Steel Institute of Russian National Research University has developed a new material for thermoelectric conversion. Because of its high quality factor, the material can be used as a battery for long-term power supply of spacecraft. The results were published in the Journal of Materials Chemistry A Scientific Journal.
2019-05-28See Details
- Thermoelectric Power Generation at Room Temperature: Not far?
- For smart hardware, wearable electronic devices, smart phones and other electronic products, batteries seem to be the key bottleneck: the short duration, the need for repeated charging and other issues seriously affect the user experience.
2019-05-28See Details
