Rhetorical Situation Audience: People interested in renewable energy; primarily, innovators and investors from energy corporations. Purpose: To introduce a new and versatile solar cell manufacturing concept created in Great Britain. Context: This presentation is being shown at a Green Energy Tradeshow in Canada.

Spray Painting the future of energy By Jennifer Bayley

Purpose: To inform the green energy sector of a new innovation in the manufacturing and creation of solar panels using the Spray-On Perovskite Solar Cell process.

Presentation Contents Background Innovation Features and Benefits Conclusion

Perovskite Solar Cells Background Solar Energy Silicon Solar Cells Perovskite Solar Cells Background Innovation Features and Benefits Conclusion

Solar Cells Background Innovation Features and Benefits Conclusion Photons in sunlight hit the solar panel and are absorbed by semiconducting materials. This excites the electrons of the semi conducting material and creates an electric charge. The International Energy Agency projects that by 2050, solar power will contribute 16 % of the world’s electricity Two types of solar cell: Silicon and Perovskite Background Innovation Features and Benefits Conclusion

Silicon solar cells Created in 1887 Uses thin layers of semiconducting Silicon (Si) Crystals Accounts for around 90% of the worldwide solar cell production Background Innovation Features and Benefits Conclusion

Perovskite solar cells Created in 2009 New semiconducting layer is a common mineral found in limestone: Perovskite – calcium titanium oxide Quickly rising in popularity Background Innovation Features and Benefits Conclusion

Innovation Spray-on Perovskite Solar Cells Manufacturing Process Comparing The Technology Background Innovation Features and Benefits Conclusion

Spray-0n perovskite solar cells A new and innovative process of manufacturing solar cells: Created by researchers at the University of Sheffield in Great Britain Uses a Halide Perovskite mixture for the semiconducting layer Liquid layer is able to be sprayed onto the solar cell base Background Innovation Features and Benefits Conclusion

manufacturing process Perovskite photovoltaic material created using simple wet chemistry techniques Liquid placed in commercial grade air- based spray painter Material deposited on the solar cell base in programmed layers or patterns Process repeated as necessary Background Innovation Features and Benefits Conclusion

Comparing the technology Traditional construction Spray-on solar cells Electricity Generation Low efficiency High efficiency Production Facilities Traditional Lab space Clean Room Process Complexity Simple wet chemistry process, low temperatures needed Multiple steps, high temperatures needed Durability Low durability High durability Background Innovation Features and Benefits Conclusion

Features and Benefits Cost Versatility Background Innovation Conclusion

The costs Will Lower the Price of Solar Power: Uses common commercial grade spray painters Tailored for high volume manufacturing Low materials costs Equals low product sale price Background Innovation Features and Benefits Conclusion

versatility The Perovskite layer can be deposited In many different layers or patterns On any surface Or Re deposited to fix degradation of material Background Innovation Features and Benefits Conclusion

Conclusion Summing It Up Future Applications Background Innovation Features and Benefits Conclusion

Summing it up Solar Energy Technology has changed rapidly due to energy demand Consumers want low-cost ways to implement solar power on a large scale Spray-On Perovskite Solar Cells are: Low cost Versatile Scalable to large volume manufacturing Background Innovation Features and Benefits Conclusion

Future applications Background Innovation Features and Benefits Solar Energy Technology has changed rapidly due to energy demand Consumers want low-cost ways to implement solar power on a large scale Spray-On Perovskite Solar Cells are: Low cost Versatile Scalable to large volume manufacturing Background Innovation Features and Benefits Conclusion

Q and A ?