Improving stability of organic devices: a time/space resolved structural monitoring approach applied to plasmonic photovoltaics

Abstract An unconventional approach is applied for the first time to study the effect of silver nanoparticles incorporation in plasmonic organic photovoltaic devices. The incorporation of silver nanoparticles in the photoactive film results in enhanced PV performance and stability with respect to the reference device. The role of the local morphology in improving the plasmonic device properties is addressed by time-resolved high spatial resolution X-ray diffraction investigations. TR-HRXD was performed in-situ on an integrated OPV device incorporating silver nanoparticles in the photoactive layer during annealing (simulating the working conditions). Such time-space resolved method allowed tracking the modifications of the structural properties at each layer and interfaces. Remarkably, it is demonstrated that it possible to track the variation of the plasmonic spatial distribution inside the device over time, a factor strongly influencing the photovoltaic performance.

[1]  Wai Kin Chan,et al.  Recent Advances in Transition Metal Complexes and Light‐Management Engineering in Organic Optoelectronic Devices , 2014, Advanced materials.

[2]  Aldo Di Carlo,et al.  Flexible Perovskite Photovoltaic Modules and Solar Cells Based on Atomic Layer Deposited Compact Layers and UV‐Irradiated TiO2 Scaffolds on Plastic Substrates , 2015 .

[3]  Fan-Ching Chien,et al.  Surface plasmonic effects of metallic nanoparticles on the performance of polymer bulk heterojunction solar cells. , 2011, ACS nano.

[4]  Emmanuel Kymakis,et al.  Plasmonic organic photovoltaics doped with metal nanoparticles , 2011 .

[5]  Emmanuel Kymakis,et al.  Nanoparticle-based plasmonic organic photovoltaic devices , 2013 .

[6]  Wei E. I. Sha,et al.  Efficiency Enhancement of Organic Solar Cells by Using Shape‐Dependent Broadband Plasmonic Absorption in Metallic Nanoparticles , 2013 .

[7]  V. G. Kohn,et al.  High energy X-ray nanofocusing by silicon planar lenses , 2009 .

[8]  Gang Li,et al.  Recent trends in polymer tandem solar cells research , 2013 .

[9]  W. Barnes,et al.  Surface plasmon subwavelength optics , 2003, Nature.

[10]  H. Atwater,et al.  Plasmonics for improved photovoltaic devices. , 2010, Nature materials.

[11]  George D. Spyropoulos,et al.  Spatially‐Resolved In‐Situ Structural Study of Organic Electronic Devices with Nanoscale Resolution: The Plasmonic Photovoltaic Case Study , 2013, Advanced materials.

[12]  Costas Fotakis,et al.  Generation of Al nanoparticles via ablation of bulk Al in liquids with short laser pulses. , 2009, Optics express.

[13]  Yang Yang,et al.  Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency , 2013, Scientific Reports.

[14]  Panagiotis Karagiannidis,et al.  Plasmonic silver nanoparticles for improved organic solar cells , 2012 .

[15]  George D. Spyropoulos,et al.  Enhanced Structural Stability and Performance Durability of Bulk Heterojunction Photovoltaic Devices Incorporating Metallic Nanoparticles , 2011 .

[16]  G. A. Shafeev,et al.  Laser writing of nanostructures on bulk Al via its ablation in liquids , 2009, Nanotechnology.

[17]  J. Schermer,et al.  Er(3+)/Yb(3+) upconverters for InGaP solar cells under concentrated broadband illumination. , 2015, Physical chemistry chemical physics : PCCP.

[18]  Miao Xu,et al.  Enhanced power-conversion efficiency in polymer solar cells using an inverted device structure , 2012, Nature Photonics.

[19]  Yang Yang,et al.  A polymer tandem solar cell with 10.6% power conversion efficiency , 2013, Nature Communications.

[20]  F. Bella,et al.  Multifunctional Luminescent Down‐Shifting Fluoropolymer Coatings: A Straightforward Strategy to Improve the UV‐Light Harvesting Ability and Long‐Term Outdoor Stability of Organic Dye‐Sensitized Solar Cells , 2015 .

[21]  J. Hummelen,et al.  Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor Heterojunctions , 1995, Science.

[22]  C. Chu,et al.  Gold nanoparticle-decorated graphene oxides for plasmonic-enhanced polymer photovoltaic devices. , 2014, Nanoscale.

[23]  F. Bella,et al.  Performance and stability improvements for dye-sensitized solar cells in the presence of luminescent coatings , 2015 .

[24]  Qiaoqiang Gan,et al.  Plasmonic‐Enhanced Organic Photovoltaics: Breaking the 10% Efficiency Barrier , 2013, Advanced materials.

[25]  Time-resolved Morphological Study of Bulk Heterojunction Films for Efficient Organic Solar Devices , 2008 .

[26]  George D. Spyropoulos,et al.  Organic bulk heterojunction photovoltaic devices with surfactant-free Au nanoparticles embedded in the active layer , 2012 .

[27]  Olivier Mathon,et al.  Invited article: the fast readout low noise camera as a versatile x-ray detector for time resolved dispersive extended x-ray absorption fine structure and diffraction studies of dynamic problems in materials science, chemistry, and catalysis. , 2007, The Review of scientific instruments.

[28]  A. J. Heeger,et al.  Photoinduced Electron Transfer from a Conducting Polymer to Buckminsterfullerene , 1992, Science.

[29]  Hongzheng Chen,et al.  Insight into the efficiency enhancement of polymer solar cells by incorporating gold nanoparticles , 2013 .