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| 1. | EXECUTIVE SUMMARY |
| 1.1. | A multitude of technologies available |
| 1.1. | A radar chart comparing attributes of different PV technologies |
| 1.1. | Technical performance of different PV technologies. Printability and flexibility are assessed on a scale of 1-10; with 10 being the most printable and/or flexible |
| 1.2. | Merits of different PV technologies |
| 1.2. | Efficiency improvement roadmap. Y-axis is in % |
| 1.2. | Roadmaps - efficiency |
| 1.3. | Roadmaps - lifetime |
| 1.3. | Predicted lifetime increases as a function of year |
| 1.3. | Energy generation costs |
| 1.4. | Selling points of organic photovoltaics |
| 1.4. | Price evolution for different grades of barrier layers |
| 1.4. | Roadmaps - costs |
| 1.5. | Organic Photovoltaics - selling points |
| 1.5. | Market forecasts 2013-2023 in US$ million |
| 1.5. | Target markets of OPV and assessing the suitability of OPVs for each segment |
| 1.6. | Market forecasts 2013-2023 in US$ million |
| 1.6. | Forecast for the number of units involved in each application 2013-2023 |
| 1.6. | Market Segments |
| 1.7. | Market Forecasts |
| 1.7. | Estimated amount of wattage produced by unit/item in each market sector |
| 1.7. | Forecast for the number of units involved in each application 2013-2023 |
| 1.8. | Commercial Success- Konarka files for bankruptcy |
| 2. | INTRODUCTION TO PHOTOVOLTAICS |
| 2.1. | The Solar Spectrum |
| 2.1. | Solar radiation spectrum reaching the earth's surface |
| 2.1. | Work functions of commonly-used materials |
| 2.2. | Solar irradiation constitutes an abundant source of energy |
| 2.2. | The bandgap |
| 2.3. | The 'built-in' potential |
| 2.3. | Metals and semiconductor bandgap |
| 2.4. | Absorption characteristics of different semiconductors for use in PV |
| 2.4. | The current-voltage characteristics |
| 2.5. | Electrodes |
| 2.5. | Schematic illustration a p-n junction, space-charge region and built-in potential (or electric field) |
| 2.6. | Typical IV characteristics of PV devices under illumination along with associated energy band diagrams |
| 2.6. | Efficiency |
| 2.7. | Typical energy band diagram depicting energy level alignments across interfaces |
| 2.8. | Fill factor corresponds to the large square that can be fitted into the IV characteristics (in coordinate region where I<0 and V>0) |
| 3. | REVIEW OF ALTERNATE PHOTOVOLTAICS TECHNOLOGIES |
| 3.1. | Crystalline Silicon |
| 3.1. | Crystalline silicon cell designs |
| 3.2. | Example of a-Si PV |
| 3.2. | Amorphous Silicon |
| 3.3. | Cadmium Telluride |
| 3.3. | Example of flexible a-Si PV |
| 3.4. | Existing consensus suggests that light exposure increases the density of dangling bonds |
| 3.4. | Copper Indium Gallium Selenide |
| 3.5. | Dye Sensitised Solar Cells |
| 3.5. | A typical multi-junction cell architecture |
| 3.6. | A typical tandem cell architecture |
| 3.7. | The temperature ramp ups and downs during the manufacturing process of CdTe PV |
| 3.8. | Applications of CIGS technology |
| 3.9. | CIGS PV devices are often fabricated using a high temperature process |
| 3.10. | Heliovolt temperature reduction process |
| 3.11. | Uses of DSSC |
| 3.12. | Light is absorbed by the dye, creating an electron-hole pairs |
| 3.13. | DSSC outperform a-Si cells under low light and/or high angle lights (e.g., indoor conditions) |
| 3.14. | The efficiency of DSSC devices increases with increasing temperature. This is contrary to other PV technologies |
| 3.15. | DSSC cells can be printed and be fully flexible. |
| 3.16. | The efficiency of DSSC cells |
| 4. | ORGANIC PHOTOVOLTAICS - TECHNOLOGY ASSESSMENT |
| 4.1. | Organic Photovoltaics |
| 4.1. | Illustrations of organic photovoltaics |
| 4.1. | Efficiency roadmap |
| 4.2. | Options for acceptor materials |
| 4.2. | The OPV process |
| 4.2. | Efficiency |
| 4.2.1. | Ways to improve the efficiency |
| 4.2.2. | Our Efficiency Roadmap |
| 4.3. | Material Options |
| 4.3. | Schematic depiction of the photoinduced electron (e) -hole (h) generation and separation |
| 4.3. | Options for donor materials |
| 4.3.1. | Active Channel |
| 4.3.2. | Transparent Conductor |
| 4.3.3. | ITO Replacement Materials |
| 4.3.4. | Concerns over ITO |
| 4.3.5. | Not all thin film photovoltaics use ITO |
| 4.4. | Lifetime |
| 4.4. | Donor and acceptors are mixed in the active channel, increase interfacial area |
| 4.4. | Outlining the HOMO and LUMO levels of common organic semiconductors |
| 4.4.1. | The requirements for a transparent, flexible barrier |
| 4.4.2. | Approaches for solving the lifetime problem |
| 4.4.3. | Our lifetime improvement roadmap |
| 4.5. | Cost |
| 4.5. | Creations of 'islands' should be avoided because they trap photogenerated charges |
| 4.5. | Required technical specification |
| 4.5.1. | Substrate |
| 4.5.2. | Barrier |
| 4.5.3. | Transparent Electrode |
| 4.5.4. | Hole Transport Layer |
| 4.5.5. | Bulk Heterojunction |
| 4.5.6. | Cathode |
| 4.5.7. | Our Price Estimate |
| 4.6. | Typical absorption characteristic of OPVs |
| 4.6. | Performance limits of various flexible substrates |
| 4.7. | Roadmap of OPV device lifetimes |
| 4.7. | Efficiency improvement roadmap |
| 4.8. | Comparing different approaches for making transparent electrodes (ITO replacements) |
| 4.8. | Substrate price points |
| 4.9. | PEDOT:PSS prices |
| 4.9. | Global indium production in 2010 |
| 4.10. | Indium price and production volumes as a function of year |
| 4.10. | IDTechEx approximate price points for P3HT and PCBM |
| 4.11. | IDTechEx estimate cost breakdown by layer |
| 4.11. | Repeated and/or tight bending degrades properties of ITO |
| 4.12. | OPV rapidly degrade |
| 4.12. | IDTechEx estimate of equipment and other costs |
| 4.13. | Water vapour permeability in packaging |
| 4.14. | Barrier performance schematic |
| 4.15. | The barrier requirements of different technologies |
| 4.16. | Extending device lifetime |
| 4.17. | Dyad technique |
| 4.18. | Another approach to forming flexible barriers |
| 4.19. | Conventional multilayer concept vs TBF design and concept |
| 4.20. | Corning flexible glass |
| 4.21. | IDTechEx roadmap for improvement in lifetime of encapsulants. |
| 4.22. | IDTechEx roadmap for price evolution in barrier technology. |
| 5. | MARKET ANALYSIS |
| 5.1. | Selling Points |
| 5.1. | Selling points of OPVs |
| 5.1. | OPV selling points are not unique |
| 5.1.1. | Are these selling points unique? |
| 5.1.2. | Comparing Different Photovoltaic Technologies |
| 5.2. | State of the Photovoltaic Market |
| 5.2. | A radar chart comparing attributes of different PV technologies |
| 5.2. | Attributes of different PV technologies |
| 5.3. | Benefits, efficiency and challenges of different PV technologies |
| 5.3. | Photovoltaics can be deployed in a range of different environments |
| 5.3. | Poster and Point-of-Sale Advertisement |
| 5.4. | Electronics in apparel (bags, clothing sportswear, military, emergency etc.) |
| 5.4. | The biggest driver in demand has traditionally been Europe |
| 5.4. | Leading players' interview highlights |
| 5.5. | IDTechEx comments on OPV applications |
| 5.5. | Total PV market forecast in installed capacity |
| 5.5. | Vehicles |
| 5.6. | Consumer Electronics (laptops, modules, e-readers, watches, etc) |
| 5.6. | PV's 'Moore's Law' equivalent |
| 5.6. | Electronics in apparel (bags, clothing sportswear, military, emergency etc.) |
| 5.7. | IDTechEx comment on electronics in apparel |
| 5.7. | Price evolution of PV technologies |
| 5.7. | Building integrated photovoltaics and utility power generation |
| 5.8. | Off-Grid and Developing World Applications |
| 5.8. | Examples of OPVs integrated directly into packaging/advertisement products |
| 5.8. | PV in Vehicles |
| 5.9. | IDTechEx comment on PV in vehicles |
| 5.9. | OPV-enabled solar bag. |
| 5.9. | Market Forecast |
| 5.10. | Harvested power versus illumination conditions |
| 5.10. | Consumer Electronics |
| 5.11. | IDTechEx comment on mobile devices and other portable/disposable electronics |
| 5.11. | Kerosene lamp and solar lanterns |
| 5.12. | Market forecasts 2013-2023 in US$ million |
| 5.12. | Building Integrated Photovoltaics |
| 5.13. | IDTechEx comment on Building Integrated Photovoltaics |
| 5.13. | Forecast for the number of units involved in each application 2013-2023 |
| 5.14. | Estimated amount of wattage produced by unit/item in each market sector |
| 5.14. | Market forecasts 2013-2023 in US$ million |
| 5.15. | Forecast for the number of units involved in each application 2013-2023 |
| 6. | COMPANY PROFILES |
| 6.1. | DisaSolar |
| 6.2. | Eight19 |
| 6.3. | Georgia Institute of Technology |
| 6.4. | Heliatek GmbH |
| 6.5. | Henkel |
| 6.6. | Holst Centre |
| 6.7. | Imperial College London |
| 6.8. | JX Nippon Oil and Gas |
| 6.9. | Konarka |
| 6.10. | Korea Institute of Science and Technology and Korea Research Institute of Chemical Technology |
| 6.11. | Mitsubishi Corporation |
| 6.12. | National Renewable Energy Lab (USA) |
| 6.13. | Plextronics |
| 6.14. | Solarmer |
| 6.15. | SolarPress |
| 6.16. | Technical University of Denmark |
| 6.17. | TU ILmenau, Fachgebiet Experimantalphysik I |
| 6.18. | University of Erlangen |
| 6.19. | University of Manchester |
| 6.20. | University of Surrey (UK) |
| APPENDIX 1: IDTECHEX PUBLICATIONS AND CONSULTANCY | |
| TABLES | |
| FIGURES |
| Pages | 145 |
|---|---|
| Tables | 35 |
| Figures | 67 |
| Forecasts to | 2023 |