Exciton dynamics in lead halide perovskite nanocrystals : recombination, dephasing and diffusion /
Author / Creator: | Bohn, Bernhard Johann, author. |
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Imprint: | Cham : Springer, [2021] ©2021 |
Description: | 1 online resource (169 pages). |
Language: | English |
Series: | Springer theses Springer theses. |
Subject: | |
Format: | E-Resource Book |
URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/12612989 |
Summary: | 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 theactive layer in an LED. This represents a technological breakthrough, because efficient perovskite light emitters in this wavelength range did not exist before. |
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Item Description: | "Doctoral thesis accepted by Ludwig-Maximilians-Universität, Munich, Germany." |
Physical Description: | 1 online resource (169 pages). |
Bibliography: | Includes bibliographical references. |
ISBN: | 9783030709402 303070940X 9783030709396 3030709396 |