Metal-free polymer/MWCNT composite fiber as an efficient counter electrode in fiber shape dye-sensitized solar cells

Abstract

PSS) composite electrode is much better at catalysing the [Formula: see text] redox couple compared to the pristine fiber electrode. The photoelectric conversion efficiency of 5.03% for the modified MWCNT electrodes was comparable with that of the conventional Pt-based electrode. The scientific results of this study reveal that MWCNT/PEDOT:PSS may be a better choice for the replacement of cost intensive electrode materials such as platinum. Good performance even after bending up to 90° and in-series connection to enhance the output voltage were also successfully achieved, highlighting the practical application of this novel device.

A One‐Dimensional Fluidic Nanogenerator with a High Power Conversion Efficiency

“…Importantly, flowing energy can be used during both day and night time and is not affected by weather. To systematically estimate the harvesting performance of the FFNG, a comparison with various miniature fiber‐shaped generators, including dye‐sensitized solar cells (DSSCs), perovskite solar cells (PSCs), quantum‐dot‐sensitized solar cells (QDSSCs), organic solar cells (OSCs), inorganic solar cells (ISCs) and nanogenerators (NGs) that harvest electrostatic and triboelectric energy, was further conducted (Figure ). The FFNG showed the highest power conversion efficiency of 23.3 %.…”

A One‐Dimensional Fluidic Nanogenerator with a High Power Conversion Efficiency

“…Thev ariation of cations with different radii showed little influence on the output voltage (Figures 4c and S31 b). [19,[25][26][27][28][29] perovskites olar cells (PSCs), [20,21,[30][31][32] quantum-dotsensitized solar cells (QDSSCs), [33][34][35] organic solar cells (OSCs), [36,37] inorganic solar cells (ISCs) [38,39] and nanogenerators (NGs) that harvest electrostatic and triboelectrice nergy. [23,24] .…”

“…For solar cells,o nly one side can be illuminated to harvest sunlight during use.A dditionally,t he availability of sunlight is only during daytime. To systematically estimate the harvesting performance of the FFNG,acomparison with various miniature fiber-shaped generators,i ncluding dyesensitized solar cells (DSSCs), [19,[29][30][31][32][33] perovskite solar cells (PSCs), [20,21,[34][35][36] quantum-dot-sensitized solar cells (QDSSCs), [37][38][39] organic solar cells (OSCs), [40,41] inorganic solar cells (ISCs) [42,43] and nanogenerators (NGs) that harvest electrostatic and triboelectric energy, [23,24] was further conducted (Figure 3). To systematically estimate the harvesting performance of the FFNG,acomparison with various miniature fiber-shaped generators,i ncluding dyesensitized solar cells (DSSCs), [19,[29][30][31][32][33] perovskite solar cells (PSCs), [20,21,[34][35][36] quantum-dot-sensitized solar cells (QDSSCs), [37][38][39] organic solar cells (OSCs), [40,41] inorganic solar cells (ISCs) [42,43] and nanogenerators (NGs) that harvest electrostatic and triboelectric energy, [23,24] was further conducted ...…”

“…[14] Thestreaming potential by pressuredriving water flow is hard to be induced on hydrophobic surface. [19,[25][26][27][28][29] perovskites olar cells (PSCs), [20,21,[30][31][32] quantum-dotsensitized solar cells (QDSSCs), [33][34][35] organic solar cells (OSCs), [36,37] inorganic solar cells (ISCs) [38,39] and nanogenerators (NGs) that harvest electrostatic and triboelectrice nergy. Fort he OMC-incorporated FFNG, owing to the large surface area, the OMC provides ah igher capacity for ion adsorption, which allows for the generation of alarger potential difference.T overify this hypothesis,w ei nvestigated the cyclic voltammograms of the FFNG with increasing OMC contents in at hree-electrode electrochemical cell.…”

“…Forelectrostatic and triboelectric nanogenerators, the output currents are relatively low, [27,28] and the power conversion efficiencies largely decay in moist environments.F urthermore,i ti sh ard to apply external friction force on the curved surface of as ingle fiber, and the surface cannot be fully utilized to harvest triboelectric energy,l eading to ar elatively low harvesting performance.I mportantly,flowing energy can be used during both day and night time and is not affected by weather. To systematically estimate the harvesting performance of the FFNG,acomparison with various miniature fiber-shaped generators,i ncluding dyesensitized solar cells (DSSCs), [19,[29][30][31][32][33] perovskite solar cells (PSCs), [20,21,[34][35][36] quantum-dot-sensitized solar cells (QDSSCs), [37][38][39] organic solar cells (OSCs), [40,41] inorganic solar cells (ISCs) [42,43] and nanogenerators (NGs) that harvest electrostatic and triboelectric energy, [23,24] was further conducted (Figure 3). TheF FNG showed the highest power conversion efficiency of 23.3 %.…”