Highly-stable and -flexible graphene/(CF3SO2)2NH/graphene transparent conductive electrodes for organic solar cells

Sang Woo Seo; Ha Seung Lee; Dong Hee Shin; Ju Hwan Kim; Chan Wook Jang; Jong Min Kim; Sung Kim; Suk Ho Choi

doi:10.1088/1361-6528/aa8533

Highly-stable and -flexible graphene/(CF₃SO₂)₂NH/graphene transparent conductive electrodes for organic solar cells

Sang Woo Seo, Ha Seung Lee, Dong Hee Shin, Ju Hwan Kim, Chan Wook Jang, Jong Min Kim, Sung Kim, Suk Ho Choi

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We first employ highly-stable and -flexible (CF₃SO₂)₂NH-doped graphene (TFSA/GR) and GR-encapsulated TFSA/GR (GR/TFSA/GR) transparent conductive electrodes (TCEs)repared on polyethylene terephthalate substrates for flexible organic solar cells (OSCs). Compared to conventional indium tin oxide (ITO) TCEs, the TFSA-doped-GR TCEs show higher optical transmittance and larger sheet resistance. The TFSA/GR and GR/TFSA/GR TCEs show work functions of 4.89 ±0.16 and 4.97 ±0.18 eV, respectively, which are not only larger than those of the ITO TCEs but also indicate p-type doping of GR, and are therefore more suitable for anode TCEs of OSCs. In addition, typical GR/TFSA/GR-TCE OSCs are much more mechanically flexible than the ITO-TCE ones with their photovoltaic parameters being similar, as proved by bending tests as functions of cycle and curvature.

Original language	English
Article number	425203
Journal	Nanotechnology
Volume	28
Issue number	42
DOIs	https://doi.org/10.1088/1361-6528/aa8533
Publication status	Published - 18 Sept 2017

Bibliographical note

Publisher Copyright:
© 2017 IOP Publishing Ltd.

Keywords

( CFSO)NH
doping
flexibility
graphene
organic solar cell

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/1361-6528/aa8533

Cite this

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title = "Highly-stable and -flexible graphene/(CF3SO2)2NH/graphene transparent conductive electrodes for organic solar cells",

abstract = "We first employ highly-stable and -flexible (CF3SO2)2NH-doped graphene (TFSA/GR) and GR-encapsulated TFSA/GR (GR/TFSA/GR) transparent conductive electrodes (TCEs)repared on polyethylene terephthalate substrates for flexible organic solar cells (OSCs). Compared to conventional indium tin oxide (ITO) TCEs, the TFSA-doped-GR TCEs show higher optical transmittance and larger sheet resistance. The TFSA/GR and GR/TFSA/GR TCEs show work functions of 4.89 ±0.16 and 4.97 ±0.18 eV, respectively, which are not only larger than those of the ITO TCEs but also indicate p-type doping of GR, and are therefore more suitable for anode TCEs of OSCs. In addition, typical GR/TFSA/GR-TCE OSCs are much more mechanically flexible than the ITO-TCE ones with their photovoltaic parameters being similar, as proved by bending tests as functions of cycle and curvature.",

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AU - Seo, Sang Woo

AU - Lee, Ha Seung

AU - Shin, Dong Hee

AU - Kim, Ju Hwan

AU - Jang, Chan Wook

AU - Kim, Jong Min

AU - Kim, Sung

AU - Choi, Suk Ho

PY - 2017/9/18

Y1 - 2017/9/18

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