Thermoelectric bulk by high ZT Si nanowire/SiO2 nanoparticle composite

Project Details

Description

The overall concept of the research project is to fabricated nanoengineered bulk thermoelectric materialswith high figure of merit. The engineering approach is constructed in loop that can be described infollowing steps: (1) first step is to define the requirements and overall specifications for the TE material,taking into account material and production process, (2) then material will be fabricated in the form ofnano-powders and nanowires (3) next, the material is implemented to selected consolidation technology inorder to produce samples, (4) the samples are characterized, tested and tuned-up to the needs defined byrequirements related to the technical objective. Mentioned steps are repeated until developed materials meetthe requirements. All these elements will be developed in an integrated way, i.e. by combining materialsdesign with fabrication technology. Expected highly efficient thermoelectric materials will be demonstrated.The expertise gained through the co-work between Dept. of Electrical Engineering and Institute of MaterialsScience and Engineering, NCU, and was collected and served as a basis for formulating requirements forcurrent project focused on very promising materials based on heavily doped roughened Si nanowires andSiO2 nanoparticles. This will have beneficial impact on the environment by heat energy scavenging,significant energy savings and reduction of a greenhouse gas emission. Designing and manufacturing ofhighly efficient thermoelectric materials directly address material science and engineering aspects ofresearch.
StatusFinished
Effective start/end date1/01/1631/12/16

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 12 - Responsible Consumption and Production
  • SDG 13 - Climate Action
  • SDG 17 - Partnerships for the Goals

Keywords

  • thermoelectric materials
  • figure of merit
  • phonon scattering
  • Si nanowire powder
  • SiO2nanoparticles

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