Bernhard Johann Bohn: Exciton Dynamics in Lead Halide Perovskite Nanocrystals
Exciton Dynamics in Lead Halide Perovskite Nanocrystals
Buch
- Recombination, Dephasing and Diffusion
- Springer International Publishing, 05/2021
- Einband: Gebunden, HC runder Rücken kaschiert
- Sprache: Englisch
- ISBN-13: 9783030709396
- Bestellnummer: 10564871
- Umfang: 176 Seiten
- Nummer der Auflage: 21001
- Auflage: 1st ed. 2021
- Gewicht: 436 g
- Maße: 241 x 160 mm
- Stärke: 15 mm
- Erscheinungstermin: 19.5.2021
- Serie: Springer Theses
Achtung: Artikel ist nicht in deutscher Sprache!
Weitere Ausgaben von Exciton Dynamics in Lead Halide Perovskite Nanocrystals
Klappentext
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.