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Morphology Changes In Pcpdtbt:Pcbm And P3ht:Pcpdtbt:Pcbm And Its Effect On Polymer Solar Cell Performance, Galen David Cauble
Morphology Changes In Pcpdtbt:Pcbm And P3ht:Pcpdtbt:Pcbm And Its Effect On Polymer Solar Cell Performance, Galen David Cauble
Physics
Polymer solar cell morphology is sensitive to both heat and time. By thermally annealing polymer solar cells the morphology of the devices can be altered causing immediate changes in device performance. Blending PCPDTBT:PCBM with P3HT:PCPDTBT combines the absorption characteristics of each to create a more even absorption spectrum. Subjecting PCPDTBT:PCBM, and P3HT:PCPDTBT:PCBM polymer solar cells to thermal annealing as well as recording device performance through time has shown that P3HT:PCPDTBT:PCBM devices react positively to thermal annealing (increasing from 0.8% to 1.4%) while PCPDTBT:PCBM devices have varied reactions. Furthermore, the P3HT:PCPDTBT:PCBM devices have achieved efficiencies of 1.6% in AM 1.5 compared …
Human Powered Helicopter: Observing The Impacts Of Ground Effect And Intermeshed Rotors, Shane Stowe
Human Powered Helicopter: Observing The Impacts Of Ground Effect And Intermeshed Rotors, Shane Stowe
Physics
No abstract provided.
A Modular Design For Nuclear Battery Technology, Randy Lao
A Modular Design For Nuclear Battery Technology, Randy Lao
Physics
This paper is an exploration of the physics and technology behind the development and on-going research of nuclear batteries. This includes the topics of isotope radiation suitable for such a device as well as the components necessary to utilize the energy of natural decay, such as solid and liquid semiconductors. Most importantly for public use, the battery requires a safe containment system while allowing convenient modularity. An efficiency and total output comparison will be made with standard button cell and dry cell batteries. Also, a proposal is made for the design of an enclosure to contain radioactive materials. The safe …