Built-in Water Capture in a Polythiophene Film Blended with Metal-Organic Frameworks

  • Young Jin Jang
  • Yoo Eil Jung
  • Eun Hye Kwon
  • Chang Yeon LeeEmail author
  • Yeong Don ParkEmail author


We introduced a metal-organic framework (MOF), HKUST-1, to a conjugated polymer layer, poly(3-hexylthiopene-2,5-diyl) (P3HT), and systematically investigated the effects of HKUST-1 in the P3HT active layer on the performances of fieldeffect transistor (FET) devices under humid conditions over 21 days. The performances of a P3HT film blended with HKUST-1 in an FET remained relatively stable under humid conditions over a long period of time. As the water molecules diffused into the bulk conjugated polymer layer, the HKUST-1 crystals in the P3HT film captured water molecules and prevented water adsorption by the P3HT backbones, suggesting an efficient approach to improving the environmental stability of polymer FETs. Furthermore, HKUST-1/P3HT blended films exposed to humidity displayed recovered device performances under vacuum. The device stability conveyed by the HKUST-1 in the presence of humidity was closely related to the superior ability of the HKUST-1 to capture water, which was based on the water adsorption characteristics of HKUST-1.


polythiophene metal-organic frameworks HKUST-1 OFET 


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Copyright information

© The Polymer Society of Korea and Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Department of Energy and Chemical EngineeringIncheon National UniversityIncheonKorea

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