Wittich, Carolin ; Mankel, Eric ; Clemens, Oliver ; Lakus-Wollny, Kerstin ; Mayer, Thomas ; Jaegermann, Wolfram ; Kleebe, Hans-Joachim (2018)
Structural and compositional characteristics of vacuum deposited methylammonium lead halide perovskite layers in dependence on background pressure and substrate temperature.
In: Thin Solid Films, 650
doi: 10.1016/j.tsf.2018.02.004
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In a physical vapor deposition process for fabrication of perovskite absorber layers it is an important prerequisite for large scale application to understand the reaction steps and the impact of the deposition parameters on the structural and compositional characteristics of vacuum deposited lead halide perovskite layers. In the sequential deposition method, we found a narrow and low lying temperature window for the transformation of a vapor deposited PbCl2 base layer to CH3NH3PbI3 perovskite by reaction with evaporated CH3NH3I. To modify the deposition parameter window, we systematically varied background pressure and substrate temperature and analyzed the resulting composition using X-ray diffraction, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. The resulting reaction products and byproducts CH3NH3PbI3, CH3NH3PbCl3, PbICl, PbCl2, and PbI2 were identified and the variation of their concentration in dependence of background pressure and substrate temperature is explained by discussion of a set of reaction equations and reaction mechanisms on a thermodynamic basis.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Wittich, Carolin ; Mankel, Eric ; Clemens, Oliver ; Lakus-Wollny, Kerstin ; Mayer, Thomas ; Jaegermann, Wolfram ; Kleebe, Hans-Joachim |
| Art des Eintrags: | Bibliographie |
| Titel: | Structural and compositional characteristics of vacuum deposited methylammonium lead halide perovskite layers in dependence on background pressure and substrate temperature |
| Sprache: | Englisch |
| Publikationsjahr: | 31 März 2018 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Thin Solid Films |
| Jahrgang/Volume einer Zeitschrift: | 650 |
| DOI: | 10.1016/j.tsf.2018.02.004 |
| Kurzbeschreibung (Abstract): | In a physical vapor deposition process for fabrication of perovskite absorber layers it is an important prerequisite for large scale application to understand the reaction steps and the impact of the deposition parameters on the structural and compositional characteristics of vacuum deposited lead halide perovskite layers. In the sequential deposition method, we found a narrow and low lying temperature window for the transformation of a vapor deposited PbCl2 base layer to CH3NH3PbI3 perovskite by reaction with evaporated CH3NH3I. To modify the deposition parameter window, we systematically varied background pressure and substrate temperature and analyzed the resulting composition using X-ray diffraction, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. The resulting reaction products and byproducts CH3NH3PbI3, CH3NH3PbCl3, PbICl, PbCl2, and PbI2 were identified and the variation of their concentration in dependence of background pressure and substrate temperature is explained by discussion of a set of reaction equations and reaction mechanisms on a thermodynamic basis. |
| Freie Schlagworte: | Physical vapor deposition, Thermodynamics, Lead halide perovskite, X-ray diffraction |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces |
| Hinterlegungsdatum: | 05 Apr 2018 12:41 |
| Letzte Änderung: | 18 Aug 2021 11:25 |
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