Bendable thermoelectric generators composed of p- and n-type silver chalcogenide nanoparticle thin films

Seunggen Yang, Kyoungah Cho, Yoonbeom Park, Sangsig Kim

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

In this study, we design and construct lateral thermoelectric generators on bendable substrates with pairs of p-Ag2Te and n-Ag2Se chalcogenide nanoparticle (NP) thin films, and investigate their thermoelectric performances in ambient atmosphere. The individual Seebeck coefficient and lateral thermal conductivity are 1110 μV/K and 0.67 W/m K, respectively, for a single p-Ag2Te thin film, and − 290 μV/K and 0.55 W/m K, respectively, for a single n-Ag2Se NP thin film. A ring-shaped thermoelectric generator made with 50 pn modules of these NP thin films at a temperature difference of 15 K generates a Seebeck voltage of 1.16 V and an output power of 106 mW/cm2. Moreover, the mechanical durability of our thermoelectric generator is verified by repeated bending tests of up to 5000 cycles.

Original languageEnglish
Pages (from-to)333-337
Number of pages5
JournalNano Energy
Volume49
DOIs
Publication statusPublished - 2018 Jul

Bibliographical note

Funding Information:
This work was supported in part by the Mid-career Researcher Program (No. NRF-2016R1E1A1A02920171 ), the Technology Development Program to Solve Climate Changes ( NRF-2017M1A2A2087323 ), the Brain Korea 21 Plus Project in 2018 through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning and the Korea University Grant .

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • AgSe
  • AgTe
  • Bendable thermoelectric
  • Nanoparticle thin film
  • Seebeck
  • Thermoelectric modules

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Electrical and Electronic Engineering

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