Hot carrier filtering in solution processed heterostructures: a paradigm for improving thermoelectric efficiency.

نویسندگان

  • Yichi Zhang
  • Je-Hyeong Bahk
  • Joun Lee
  • Christina S Birkel
  • Matthew L Snedaker
  • Deyu Liu
  • Hongmei Zeng
  • Martin Moskovits
  • Ali Shakouri
  • Galen D Stucky
چکیده

An approach based on a solution-based synthesis that produces a thermally stable Ag/oxide/S₂ Te₃ -Te metal-semiconductor heterostructure is described. With this approach, a figure of merit of zT = 1.0 at 460 K is achieved, a record for a heterostructured material made using wet chemistry. Combining experiments and theory shows that the large increase in the material's Seebeck coefficient results from hot carrier filtering.

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عنوان ژورنال:
  • Advanced materials

دوره 26 17  شماره 

صفحات  -

تاریخ انتشار 2014