期刊
NANOTECHNOLOGY
卷 28, 期 42, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa8533
关键词
graphene; (CF3SO2)(2)NH; doping; flexibility; organic solar cell
资金
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2017R1A2B3006054]
- National Research Foundation of Korea [22A20130000025] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We first employ highly-stable and -flexible (CF3SO2)(2)NH-doped graphene (TFSA/GR) and GRencapsulated TFSA/GR (GR/TFSA/GR) transparent conductive electrodes (TCEs) prepared 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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