Multi-layer graphene oxide alone and in a composite with nanosilica: preparation and interactions with polar and nonpolar adsorbates Original Research Article
Applied Surface Science, Available online 1 July 2016, Pages
V.M. Gun’ko, V.V. Turov, V.I. Zarko, O.V. Goncharuk, A.K. Matkovsky, G.P. Prykhod’ko, Yu.M. Nychiporuk, E.M. Pakhlov, T.V. Krupska, D.Yu. Balakin, B. Charmas, L.S. Andriyko, J. Skubiszewska-Zięba, A.I. Marynin, A.I. Ukrainets, M.T. Kartel
Graphical abstractMulti-layer graphene oxide alone and in a composite with nanosilica: preparation and interactions with polar and nonpolar adsorbates.
| Rational design of covalent interfaces for graphene/elastomer nanocomposites Original Research Article
Composites Science and Technology, Available online 1 July 2016, Pages
Zhijun Yang, Jun Liu, Ruijuan Liao, Ganwei Yang, Xiaohui Wu, Zhenghai Tang, Baochun Guo, Liqun Zhang, Yong Ma, Qiuhai Nie, Feng Wang
| CdS/CdSe Quantum Dots and ZnPc Dye Co-sensitized Solar Cells with Au Nanoparticles/Graphene Oxide as Efficient Modified Layer Original Research Article
Journal of Colloid and Interface Science, Available online 1 July 2016, Pages
Cong Chen, Yu Cheng, Junjie Jin, Qilin Dai, Hongwei Song
Graphical abstractIn this work, we present a new design for the development of QDSSCs based on the macroporous ZnO IOs photoanode sensitized by QDs which have light harvesting in the visible region and organic dye in visible /NIR region. Because of the complementary absorption spectral response caused by CdS/CdSe QDs and ZnPc dye, the co-sensitized solar cell can expand the absorption spectra to ∼750 nm. As a result, the co-sensitized solar cells exhibited a significant improvement in Jsc leading to the overall PCE of 4.01%, which is much better than that of the individual CdS/CdSe (3.08%) or ZnPc (1.88%) sensitizer. We also found that the cell with an Au NPs/GO composite as a modified layer on traditional Cu2S counter electrode shows higher photovoltaic performance (4.60%) which can be attributed to the superior combination of high electro-catalytic activity of Au NPs and the electrical conductivity of the GO network structure. Enhanced stability remains 85% of its original value because ZnPc prevents the degradation of the CdS/CdSe QDs in S2−/Sn2− liquid electrolyte and Au NPs/GO composites catalyse the regeneration of QDs and transmission of carriers. We think the present work can provide a simple stepwise co-sensitization method to improve photoelectric response by expanding the absorption spectrum and an efficient way for green chemistry by modifying the counter electrode with Au NPs/GO composites for QDSSCs.
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