Doped Organic Micro-Thermoelectric Coolers with Rapid Response Time

Shu-Jen Wang*, Steve Wohlrab, Heiko Reith*, Dietmar Berger, Hans Kleemann, Kornelius Nielsch, Karl Leo*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

5 Citations (Scopus)


Local thermal management has important implications regarding comfort, energy consumption, and electronic device performance/lifetime. While organic thermoelectrics have emerged as promising materials for flexible thermoelectric energy harvesting devices, their potential as Peltier cooling element has been largely overlooked. Here, micro-thermoelectric coolers based on doped small molecule thin-films with a fast response time (around 25 µs) which is among the fastest micro-thermoelectric coolers reported are presented. This experimental cooling performance is supported by simulation using the finite-element method for thermal transport. The results show that organic thermoelectrics offer great potential for flexible and wearable micro-thermoelectric cooling applications.

Original languageEnglish
Article number2200629
Number of pages5
JournalAdvanced Electronic Materials
Issue number12
Early online date2 Aug 2022
Publication statusPublished - Dec 2022

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials

User-Defined Keywords

  • molecular doping
  • organic semiconductors
  • organic thermoelectrics
  • Peltier effect
  • thermal management


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