Photothermally Activated Pyroelectric Polymer Films for Harvesting of Solar Heat with a Hybrid Energy Cell Structure

Teahoon Park, Jongbeom Na, Byeonggwan Kim, Younghoon Kim, Haijin Shin, Eunkyoung Kim

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Photothermal effects in poly(3,4-ethylenedioxythiophene)s (PEDOTs) were explored for pyroelectric conversion. A poled ferroelectric film was coated on both sides with PEDOT via solution casting polymerization of EDOT, to give highly conductive and effective photothermal thin films of PEDOT. The PEDOT films not only provided heat source upon light exposure but worked as electrodes for the output energy from the pyroelectric layer in an energy harvester hybridized with a thermoelectric layer. Compared to a bare thermoelectric system under NIR irradiation, the photothermal-pyro-thermoelectric device showed more than 6 times higher thermoelectric output with the additional pyroelectric output. The photothermally driven pyroelectric harvesting film provided a very fast electric output with a high voltage output (Vout) of 15 V. The pyroelectric effect was significant due to the transparent and high photothermal PEDOT film, which could also work as an electrode. A hybrid energy harvester was assembled to enhance photoconversion efficiency (PCE) of a solar cell with a thermoelectric device operated by the photothermally generated heat. The PCE was increased more than 20% under sunlight irradiation (AM 1.5G) utilizing the transmitted light through the photovoltaic cell as a heat source that was converted into pyroelectric and thermoelectric output simultaneously from the high photothermal PEDOT electrodes. Overall, this work provides a dynamic and static hybrid energy cell to harvest solar energy in full spectral range and thermal energy, to allow solar powered switching of an electrochromic display.

Original languageEnglish
Pages (from-to)11830-11839
Number of pages10
JournalACS Nano
Volume9
Issue number12
DOIs
Publication statusPublished - 2015 Oct 29

Fingerprint

Polymer films
Harvesters
heat
Electrodes
output
polymers
cells
Irradiation
Ferroelectric films
Photovoltaic cells
heat sources
Thermal energy
Solar energy
electrodes
Light sources
energy
Solar cells
Casting
Display devices
Polymerization

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Park, Teahoon ; Na, Jongbeom ; Kim, Byeonggwan ; Kim, Younghoon ; Shin, Haijin ; Kim, Eunkyoung. / Photothermally Activated Pyroelectric Polymer Films for Harvesting of Solar Heat with a Hybrid Energy Cell Structure. In: ACS Nano. 2015 ; Vol. 9, No. 12. pp. 11830-11839.
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Photothermally Activated Pyroelectric Polymer Films for Harvesting of Solar Heat with a Hybrid Energy Cell Structure. / Park, Teahoon; Na, Jongbeom; Kim, Byeonggwan; Kim, Younghoon; Shin, Haijin; Kim, Eunkyoung.

In: ACS Nano, Vol. 9, No. 12, 29.10.2015, p. 11830-11839.

Research output: Contribution to journalArticle

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