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Development of Graphene Nano‐Platelet Ink for High Voltage Flexible Dye Sensitized Solar Cells with Cobalt Complex Electrolytes
Author(s) -
Baker Jennifer A.,
Worsley Carys,
Lee Harrison K. H.,
Clark Ronald N.,
Tsoi Wing C.,
Williams Geraint,
Worsley David A.,
Gethin David T.,
Watson Trystan M.
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600652
Subject(s) - dye sensitized solar cell , materials science , graphene , cobalt , electrolyte , catalysis , fabrication , nanotechnology , platinum , chemical engineering , nanoparticle , deposition (geology) , electrode , metallurgy , chemistry , organic chemistry , engineering , medicine , paleontology , alternative medicine , pathology , sediment , biology
Graphene nanoparticles have been subject to intensive investigation as a replacement for platinum as the catalyst in dye sensitized solar cells (DSCs), but few of these investigations examine the application for flexible cells with deposition processes suitable for industrial fabrication. This work introduces a transparent water based graphene ink that can be dried rapidly at less than 110 ºC making it particularly suitable for roll to roll deposition on plastic substrates. This ink has application as a catalyst for dye sensitized solar cells utilizing cobalt complex electrolytes with efficiency of over 6 % and a V oc of 0.89 V at 1 sun demonstrated. A flexible DSC with a printed catalyst and cobalt redox mediator is reported, with efficiency of over 6.0 % and V oc of 0.6 V at 800 lux.