Please join us for a talk entitled: Solar Fusion with Dr. Laslo FrazerPlease join us for a talk entitled: Solar Fusion with Dr. Laslo Frazer
Red light has less energy than yellow light. The picture shows a material which is capturing red light and releasing yellow light. This is a spontaneous increase in energy. Energy comes in countable pieces. In this case, those pieces are photons and excitons.
We combine the pieces. The process is called fusion. The total amount of energy cannot spontaneously increase because energy is conserved.
Fusion relies on the fact that number is not conserved. By reducing the number of pieces, we can create higher energy pieces. I will present the importance of fusion to solar cell technology and some of my students' discoveries about fusion.
References: Jefferies, D., et al. (2019). Photochemical upconversion theory: Importance of triplet energy levels and triplet quenching. Physical Review Applied, 12, 024023. Gholizadeh, E., et al. (2018). Photochemical upconversion is suppressed by high concentrations of molecular sensitizers. Physical Chemistry Chemical Physics, 20, 19500-19506. Dover, C., et al. (2018). Endothermic singlet fission is hindered by excimer formation. Nature Chemistry, 10(3), 305.
Thursday December 12
12:10
CNS 204
Pizza will be provided. Please remember to bring your own cup. Reduce, reuse, recycle.
Individuals with disabilities requiring accommodations should contact the Department Assistant at jackerman@ithaca.edu . We ask that requests for accommodations be made as soon as possible.
https://www.ithaca.edu/intercom/article.php/20191204111350238