A Direct Mapping Approach to Understand Carrier Relaxation Dynamics in Varied Regions of a Polycrystalline Perovskite Film

We developed a direct mapping approach to overlay the image of a polycrystalline perovskite film obtained from the transient absorption microscope (TAM) with that from the scanning electron microscope (SEM). By mapping these imaging data pixel by pixel, we are able to observe the relaxation dynamics...

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Veröffentlicht in:	Angewandte Chemie International Edition 2020-10, Vol.59 (43), p.19001-19005
Hauptverfasser:	Fathi, Amir, Jokar, Efat, Lee, Yuan‐Pern, Diau, Eric Wei‐Guang
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge distribution Current carriers Grain boundaries image processing lifetime mapping Mapping organo-inorganic halide perovskites Perovskites Photovoltaic cells Pixels Polycrystals Recombination Scanning electron microscopy Solar cells transient absorption microscopy ultrafast imaging
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