Improved thermal oxidation stability of solution-processable silver nanowire transparent electrode by reduced graphene oxide.

Solution-processable silver nanowire-reduced graphene oxide (AgNW-rGO) hybrid transparent electrode was prepared in order to replace conventional ITO transparent electrode. AgNW-rGO hybrid transparent electrode exhibited high optical transmittance and low sheet resistance, which is comparable to ITO transparent electrode. In addition, it was found that AgNW-rGO hybrid transparent electrode exhibited highly enhanced thermal oxidation and chemical stabilities due to excellent gas-barrier property of rGO passivation layer onto AgNW film. Furthermore, the organic solar cells with AgNW-rGO hybrid transparent electrode showed good photovoltaic behavior as much as solar cells with AgNW transparent electrode. It is expected that AgNW-rGO hybrid transparent electrode can be used as a key component in various optoelectronic application such as display panels, touch screen panels, and solar cells.

[1]  K. Müllen,et al.  Transparent, conductive graphene electrodes for dye-sensitized solar cells. , 2008, Nano letters.

[2]  Xun Yu,et al.  High-efficiency dye-sensitized solar cells based on robust and both-end-open TiO2 nanotube membranes , 2011, Nanoscale research letters.

[3]  Yi Cui,et al.  Solution-processed metal nanowire mesh transparent electrodes. , 2008, Nano letters.

[4]  L. Qi,et al.  Wet Chemical Synthesis of Silver Nanowire Thin Films at Ambient Temperature , 2004 .

[5]  Thomas M. Higgins,et al.  Silver Nanowire Networks as Flexible, Transparent, Conducting Films: Extremely High DC to Optical Conductivity Ratios. , 2009, ACS nano.

[6]  Yi Cui,et al.  Scalable coating and properties of transparent, flexible, silver nanowire electrodes. , 2010, ACS nano.

[7]  Wei Lin Leong,et al.  Solution-processed small-molecule solar cells with 6.7% efficiency. , 2011, Nature materials.

[8]  Chongwu Zhou,et al.  The race to replace tin-doped indium oxide: which material will win? , 2010, ACS nano.

[9]  Feng Ding,et al.  Thin Film Field‐Effect Phototransistors from Bandgap‐Tunable, Solution‐Processed, Few‐Layer Reduced Graphene Oxide Films , 2010, Advanced materials.

[10]  F. Krebs,et al.  A roll-to-roll process to flexible polymer solar cells: model studies, manufacture and operational stability studies , 2009 .

[11]  B. Montag,et al.  Molecules of jellium dimers , 1995 .

[12]  S. Lau,et al.  The application of highly doped single-layer graphene as the top electrodes of semitransparent organic solar cells. , 2012, ACS nano.

[13]  Linghai Xie,et al.  Recent Developments in Top‐Emitting Organic Light‐Emitting Diodes , 2010, Advanced materials.

[14]  M. Yacamán,et al.  Corrosion at the Nanoscale: The Case of Silver Nanowires and Nanoparticles , 2005 .

[15]  Hui Wu,et al.  Passivation coating on electrospun copper nanofibers for stable transparent electrodes. , 2012, ACS nano.

[16]  Franklin Kim,et al.  Langmuir-Blodgett assembly of graphite oxide single layers. , 2009, Journal of the American Chemical Society.

[17]  Qibing Pei,et al.  Highly Flexible Silver Nanowire Electrodes for Shape‐Memory Polymer Light‐Emitting Diodes , 2011, Advanced materials.

[18]  Christoph J. Brabec,et al.  Solution‐Processed Metallic Nanowire Electrodes as Indium Tin Oxide Replacement for Thin‐Film Solar Cells , 2011 .

[19]  Terry Alford,et al.  Characterization of the physical and electrical properties of Indium tin oxide on polyethylene napthalate , 2005 .

[20]  Liangbing Hu,et al.  Emerging Transparent Electrodes Based on Thin Films of Carbon Nanotubes, Graphene, and Metallic Nanostructures , 2011, Advanced materials.

[21]  John R. Reynolds,et al.  Transparent, Conductive Carbon Nanotube Films , 2004, Science.

[22]  Guihua Li,et al.  Effects of surface resonance state on the plasmon resonance absorption of Ag nanoparticles embedded in partially oxidized amorphous Si matrix , 2000 .

[23]  Seok‐In Na,et al.  Efficient and Flexible ITO‐Free Organic Solar Cells Using Highly Conductive Polymer Anodes , 2008 .

[24]  Hendrik F. Hamann,et al.  Strength of the electric field in apertureless near-field optical microscopy , 2001 .

[25]  Kwang S. Kim,et al.  Large-scale pattern growth of graphene films for stretchable transparent electrodes , 2009, Nature.

[26]  Shlomo Magdassi,et al.  Transparent conductive coatings by printing coffee ring arrays obtained at room temperature. , 2009, ACS nano.

[27]  M. El-Sayed,et al.  Some interesting properties of metals confined in time and nanometer space of different shapes. , 2001, Accounts of chemical research.

[28]  R. Ruoff,et al.  Reduced graphene oxide by chemical graphitization. , 2010, Nature communications.

[29]  C. Macosko,et al.  Graphene/Polyurethane Nanocomposites for Improved Gas Barrier and Electrical Conductivity , 2010 .

[30]  Younan Xia,et al.  Crystalline Silver Nanowires by Soft Solution Processing , 2002 .

[31]  Junyong Kang,et al.  Oxidation resistance of graphene-coated Cu and Cu/Ni alloy. , 2011, ACS nano.

[32]  F. Gao,et al.  Engineering hybrid nanotube wires for high-power biofuel cells. , 2010, Nature communications.

[33]  Frederik C. Krebs,et al.  All solution roll-to-roll processed polymer solar cells free from indium-tin-oxide and vacuum coating steps , 2009 .

[34]  C. Granqvist Transparent conductors as solar energy materials: A panoramic review , 2007 .

[35]  D. Bradley,et al.  Efficient Organic Solar Cells with Solution‐Processed Silver Nanowire Electrodes , 2011, Advanced materials.

[36]  B. Wiley,et al.  Solution-processed flexible polymer solar cells with silver nanowire electrodes. , 2011, ACS applied materials & interfaces.

[37]  G. Crawford,et al.  Strain-dependent electrical resistance of tin-doped indium oxide on polymer substrates , 2000 .