bernhard johann bohn (8 Ergebnisse)

Taschenbuch. Zustand: Sehr gut. 144 Seiten Cornelsen - 4. Auf. 1998 - tb. Gr. RC-9YA7-6SDT Sprache: Deutsch Gewicht in Gramm: 295.

Gebundene Ausgabe. Zustand: Gut. 176 Seiten Ausgabe von 1973, am BuchrÃcken unten etwas berieben, ehemaliges Schulbuch, mit Namenseintragungen am Einband innen 30840 Sprache: Deutsch Gewicht in Gramm: 440.

Zustand: New. In.

Zustand: New. In.

Taschenbuch. Zustand: Neu. Exciton Dynamics in Lead Halide Perovskite Nanocrystals | Recombination, Dephasing and Diffusion | Bernhard Johann Bohn | Taschenbuch | Springer Theses | xxii | Englisch | 2022 | Springer | EAN 9783030709426 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 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.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 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.

Hardcover. Zustand: Brand New. 174 pages. 9.25x6.10x9.21 inches. In Stock.