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Showing 1 to 4 of 4 for “"Carrier Multiplication"”.
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Patterned quantum dots for solar cell applications
… increase the efficiency of solar cells through carrier multiplication. In this thesis, the theory behind carrier multiplication is discussed along with the fabrication and photoluminescence characterization of patterned quantum dots.
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Overcoming Efficiency Limits in Photovoltaic Devices
… the bandedge, a process known as thermalisation. Carrier multiplication offers a means of reducing thermalisation losses using a system in which excess energy from one electron-hole pair is transferred to produce a second electron-hole pair. Fully harnessing carrier multiplication would raise the …
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Many-body processes in the photophysics of colloidal semiconductor nanocrystals
… in colloidal semiconductor nanocrystals (NCs). Carrier Multiplication (CM) is the production of additional electron-hole pairs by collision of a highly excited carrier with valence electrons. Efficient CM would improve the performance of solar energy conversion devices, but it is weak in the …
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Nonlinear terahertz spectroscopy of electronic and vibrational responses in condensed matter systems
… spectroscopy. We have observed nonlinear free-carrier absorption, occurring through the saturation of free-carrier mobility in bulk semiconductors. We have demonstrated that highly energetic electrons in the conduction band can generate electron-hole pairs in indium antimonide, and have …