Low-Cost Black Phosphorus Nanofillers for Improved Thermoelectric Performance in PEDOT:PSS Composite Films

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

13 Scopus Citations
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Author(s)

  • Travis G. Novak
  • Hosun Shin
  • Jungmo Kim
  • Kisun Kim
  • Ashraful Azam
  • Chien Viet Nguyen
  • Sun Hwa Park
  • Jae Yong Song

Detail(s)

Original languageEnglish
Pages (from-to)17957-17962
Journal / PublicationACS Applied Materials and Interfaces
Volume10
Issue number21
Online published9 May 2018
Publication statusPublished - 30 May 2018
Externally publishedYes

Abstract

In recent years, two-dimensional black phosphorus (BP) has seen a surge of research because of its unique optical, electronic, and chemical properties. BP has also received interest as a potential thermoelectric material because of its high Seebeck coefficient and excellent charge mobility, but further development is limited by the high cost and poor scalability of traditional BP synthesis techniques. In this work, high-quality BP is synthesized using a low-cost method and utilized in a PEDOT:PSS film to create the first ever BP composite thermoelectric material. The thermoelectric properties are found to be greatly enhanced after the BP addition, with the power factor of the film, with 2 wt % BP (36.2 μW m-1 K-2) representing a 109% improvement over the pure PEDOT:PSS film (17.3 μW m-1 K-2). A simultaneous increase of mobility and decrease of the carrier concentration is found to occur with the increasing BP wt %, which allows for both Seebeck coefficient and electrical conductivity to be increased. These results show the potential of this low-cost BP for use in energy devices.

Research Area(s)

  • black phosphorus, doping, exfoliation, organic thermoelectric, PEDOT:PSS

Citation Format(s)

Low-Cost Black Phosphorus Nanofillers for Improved Thermoelectric Performance in PEDOT:PSS Composite Films. / Novak, Travis G.; Shin, Hosun; Kim, Jungmo; Kim, Kisun; Azam, Ashraful; Nguyen, Chien Viet; Park, Sun Hwa; Song, Jae Yong; Jeon, Seokwoo.

In: ACS Applied Materials and Interfaces, Vol. 10, No. 21, 30.05.2018, p. 17957-17962.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal