A paper-based electrode using a graphene dot/PEDOT : PSS composite for flexible solar cells

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

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Author(s)

  • Chuan-Pei Lee
  • Kun-Yu Lai
  • Chin-An Lin
  • Chun-Ting Li
  • Kuo-Chuan Ho
  • Chih-I Wu
  • Shu-Ping Lau

Detail(s)

Original languageEnglish
Pages (from-to)260-267
Journal / PublicationNano Energy
Volume36
Online published22 Apr 2017
Publication statusPublished - Jun 2017
Externally publishedYes

Abstract

We have synthesized a metal-free composite ink that contains graphene dots (GDs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) that can be used on paper to serve as the counter electrode in a flexible dye-sensitized solar cell (DSSC). This paper-based GD/PEDOT:PSS electrode is low-cost, light-weight, flexible, environmentally friendly, and easy to cut and process for device fabrication. We determined the GD/PEDOT:PSS composite effectively fills the dense micro-pores in the paper substrate, which leads to improved carrier transport in the electrode and a 3-fold enhanced cell efficiency as compared to the paper electrode made with sputtered Pt. Moreover, the DSSC with the paper electrode featuring the GD/PEDOT:PSS composite did not fail in photovoltaic tests even after bending the electrode 150 times, whereas the device made with the Pt-based paper electrode decreased in efficiency by 45% after such manipulation. These exceptional properties make the metal-free GD/PEDOT:PSS composite ink a promising electrode material for a wide variety of flexible electronic applications.

Research Area(s)

  • Conducting polymer, Dye-sensitized solar cell, Flexible electrode, Graphene dots, Metal-free counter electrode, Paper electrode

Citation Format(s)

A paper-based electrode using a graphene dot/PEDOT : PSS composite for flexible solar cells. / Lee, Chuan-Pei; Lai, Kun-Yu; Lin, Chin-An; Li, Chun-Ting; Ho, Kuo-Chuan; Wu, Chih-I; Lau, Shu-Ping; He, Jr-Hau.

In: Nano Energy, Vol. 36, 06.2017, p. 260-267.

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