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Full-Text Articles in Nanoscience and Nanotechnology
Ultrafast Optical Studies Of Multiple Exciton Generation In Lead Chalcogenide Quantum Dots, Aaron G. Midgett
Chemistry & Biochemistry Graduate Theses & Dissertations (1986-2018)
Providing affordable, clean energy is one of the major challenges facing society today, and one of the promising solutions is third generation solar energy conversion. Present day, first and second-generation solar cells can at most convert each absorbed photon into a single electron hole pair, thereby establishing a theoretical limit to the power conversion efficiency. The process of multiple exciton generation (MEG) in semiconductor quantum dots increases that theoretical efficiency from 33% to 42% by utilizing the excess energy of high energy photons that is otherwise wasted as heat to excite a second electron-hole pair, thereby boosting the potential photocurrent ...