Electrophoretic separation and deposition of metal-graphene nanocomposites and their application as electrodes in solar cells
By Brennan, Lorcan J.; Surolia, Praveen K.; Rovelli, Lorenzo; Loudon, Alexander; Torsney, Samuel P.; Roche, Sarah; Thampi, K. Ravindranathan; Gun
Published in RSC Adv
The Royal Society of Chemistry
2016
Abstract
Graphene oxide (GO) is a 2D material which offers great promise in many applications, owing primarily to the reactive surface which enables an easy surface functionalization and solution processing of the resulting materials. Herein we demonstrate that graphene oxide (GO) can be used as a supporting template for the production of new graphene-metal nanoparticle composites. Our synthetic strategy allowed for nanoparticle deposition (Pt and Au) onto the surface of the 2 dimensional carbon nano-substrate without stabilising ligands. Moreover we have shown that the composite materials can be further processed using electrophoretic deposition (EPD). The deposition of the materials onto conducting glass substrates (namely fluorine doped tin oxide) via EPD, allows for the formation of high quality, stable electrodes. These electrodes demonstrated a tuneable electrochemical response towards the reduction of the tri-iodide ion, when studied electrochemically. These electrodes were then tested as potential counter electrodes (CEs) in dye sensitized solar cells (DSSCs) and displayed very promising results, increasing the efficiency by 47.5%, when compared to a conventional Pt electrode.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.