SpringerLink Springer Engineering eBooks 2017 English+International

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About the Authors; Abstract; 1 Introduction; 1.1 Organic Photovoltaics: Background; 1.2 Materials: Conjugated Polymers; 1.3 Operation Principles and Physical Insights in Organic Solar Cells (OSCs); 1.4 Organic Solar Cell Architectures; 1.5 State-of-the-Art, Challenges and Opportunities in OSCs; 1.6 Surface Plasmons for Improving Light Harvesting Efficiency; 1.7 Other Contributions to Organic Photovoltaic Performance Improvement; 1.8 State-of-the-Art and Challenges in Plasmonic Organic Solar Cells; References; 2 Surface Plasmon Resonance; 2.1 Introduction.

2.2 Surface Plasmon Polariton2.3 Localized Surface Plasmon Resonance; 2.4 Summary; References; 3 Characterization Plasmonic Organic Photovoltaic Devices; 3.1 Introduction; 3.2 Optical Spectroscopy; 3.2.1 Steady-State and Transient Absorption Spectroscopies; 3.2.2 Time-Integrated Photoluminescence and Time-Resolved Photoluminescence; 3.2.3 Spatially Resolved Spectroscopy; 3.3 Electrical Characterization; 3.3.1 Current Voltage (I-V) Measurement; 3.3.2 Internal Photon to Current Efficiency (IPCE) Measurement; 3.4 Numerical Simulation; 3.4.1 Optical Simulation; 3.4.2 Electrical Simulation.

3.5 SummaryReferences; 4 Plasmonic Entities within the Charge Transporting Layer; 4.1 Introduction; 4.2 Case Study (1): Silver Nano-Triangle Arrays in PEDOT:PSS; 4.3 Case Study (2): Gold Nanowire Network in PEDOT:PSS; 4.4 Case Study (3): Single Silver Nanowire in PEDOT:PSS; 4.5 Summary and€Conclusions; References; 5 Plasmonic Entities within the Active Layer; 5.1 Introduction; 5.2 Experimental Details; 5.3 Results and Discussion; 5.4 Summary and Conclusions; References; 6 Concluding Remarks; 6.1 Implications for the€Design of Hybrid Plasmonic OPV€Devices; 6.2 Summary and Outlook; References.

This book explores the incorporation of plasmonic nanostructures into organic solar cells, which offers an attractive light trapping and absorption approach to enhance power conversion efficiencies. The authors review the latest advances in the field and discuss the characterization of these hybrid devices using a combination of optical and electrical probes. Transient optical spectroscopies such as transient absorption and transient photoluminescence spectroscopy offer powerful tools for observing charge carrier dynamics in plasmonic organic solar cells. In conjunction with device electrical characterizations, they provide unambiguous proof of the effect of the plasmonic nanostructures on the solar cells? performance. However, there have been a number of controversies over the effects of such integration? where both enhanced and decreased performance have been reported. Importantly, the new insights into the photophysics and charge dynamics of plasmonic organic solar cells that these spectroscopy methods yield could be used to resolve these controversies and provide clear guidelines for device design and fabrication.