Title Exciton Dynamics in Lead Halide Perovskite Nanocrystals : Recombination, Dephasing and Diffusion Author(s) Bohn, Bernhard Johann Publication Cham, Springer International Publishing, 2021. Description XXII, 152 p. 62 illus., 58 illus. in color : online resource Abstract Note Less than a decade ago, lead halide perovskite semiconductors caused a sensation: Solar cells exhibiting astonishingly high levels of efficiency. Recently, it became possible to synthesize nanocrystals of this material as well. Interestingly; simply by controlling the size and shape of these crystals, new aspects of this material literally came to light. These nanocrystals have proven to be interesting candidates for light emission. In this thesis, the recombination, dephasing and diffusion of excitons in perovskite nanocrystals is investigated using time-resolved spectroscopy. All these dynamic processes have a direct impact on the light-emitting device performance from a technology point of view. However, most importantly, the insights gained from the measurements allowed the author to modify the nanocrystals such that they emitted with an unprecedented quantum yield in the blue spectral range, resulting in the successful implementation of this material as the active layer in an LED. This represents a technological breakthrough, because efficient perovskite light emitters in this wavelength range did not exist before ISBN,Price 9783030709402 Keyword(s) 1. EBOOK 2. EBOOK - SPRINGER 3. Electronic materials 4. Electronics???Materials 5. Nanoparticles 6. Nanophysics 7. NANOSCIENCE 8. OPTICAL MATERIALS 9. OPTICAL SPECTROSCOPY 10. Photovoltaic power generation 11. PHOTOVOLTAICS Item Type eBook Multi-Media Links Please Click here for eBook Circulation Data Accession#   Call# Status Issued To Return Due On Physical Location I11766     On Shelf