Cul p-type thin films for highly transparent thermoelectric p-n modules

Research output: Contribution to journalArticleScientificpeer-review


  • Bruno Miguel Morais Faustino
  • Diogo Gomes
  • Jaime Faria
  • Taneli Juntunen

  • Guilherme Gaspar
  • Catarina Bianchi
  • Antonio Almeida
  • Ana Marques
  • Ilkka Tittonen

  • Isabel Ferreira

Research units

  • NOVA University Lisbon


Developments in thermoelectric (TE) transparent p-type materials are scarce and do not follow the trend of the corresponding n-type materials - a limitation of the current transparent thermoelectric devices. P-type thermoelectric thin films of Cul have been developed by three different methods in order to maximise optical transparency (>70% in the visible range), electrical (sigma = 1.1 x 10(4) Sm-1) and thermoelectric properties (ZT= 0.22 at 300 K). These have been applied in the first planar fully transparent p-n type TE modules where gallium-doped zinc oxide (GZO) thin films were used as the n-type element and indium thin oxide (ITO) thin films as electrodes. A thorough study of power output in single elements and p-n modules electrically connected in series and thermally connected in parallel is inclosed. This configuration allows for a whole range of highly transparent thermoelectric applications.


Original languageEnglish
Article number6867
Number of pages10
JournalScientific Reports
Publication statusPublished - 2 May 2018
MoE publication typeA1 Journal article-refereed

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