Journal
CHEMICAL ENGINEERING JOURNAL
Volume 267, Issue -, Pages 289-296Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.01.028
Keywords
Doped graphene-like carbon films; Chemical vapour deposition; Bifacial dye-sensitized solar cells
Categories
Funding
- National Natural Science Foundation of China [21106184, 21322609, 11274362]
- Science Foundation Research Funds [QZDX-2014-01]
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Bifacial dye-sensitized solar cells (DSSCs) with the ability to utilize incidental light from both front- and rear-sides have drawn massive attention from researchers in recent years. Herein, nitrogen (N)-doped, sulphur (S)-doped and nitrogen/sulphur dual-doped transparent graphene-like carbon films (GFs) were synthesized by chemical vapour deposition (CVD) and confirmed by transmission electron microscopy (TEM), UV-Vis transmitted spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The doped GFs show good performance as counter electrodes (CEs) for fabrication of bifacial DSSCs. The bifacial DSSCs with high transparent N-doped, S-doped and NIS dual-doped GFs as CEs exhibit dramatically enhanced power conversion efficiency (PCE) of 3.74%, 3.86% and 4.22% under front-side illumination compared to that of pristine graphene as CEs. More importantly, under rear-side illumination the PCE of bifacial DSSCs with N-doped, S-doped and N/S dual-doped GFs as CEs can also reach 3.07%, 3.19% and 3.45%, suggesting that the doped GFs have great potential applications in fabricating bifacial DSSCs with high performance. (C) 2015 Elsevier B.V. All rights reserved.
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