The In-Gap Electronic State Spectrum of Methylammonium Lead Iodide Single-Crystal Perovskites

The In-Gap Electronic State Spectrum of Methylammonium Lead Iodide Single-Crystal Perovskites

The density of trap states within the bandgap of methylammonium lead iodide single crystals is investigated. Defect states close to both the conduction and valence bands are probed. Additionally, a comprehensive electronic characterization of crystals is carried out, including measurements of the el...

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Veröffentlicht in:Advanced materials (Weinheim) 2016-05, Vol.28 (17), p.3406-3410
Hauptverfasser: Adinolfi, Valerio, Yuan, Mingjian, Comin, Riccardo, Thibau, Emmanuel S., Shi, Dong, Saidaminov, Makhsud I., Kanjanaboos, Pongsakorn, Kopilovic, Damir, Hoogland, Sjoerd, Lu, Zheng-Hong, Bakr, Osman M., Sargent, Edward H.
Format: Artikel
Sprache:eng
Schlagworte:
Conduction band
Crystal defects
Crystals
Density
electrical properties
Electronics
Iodides
Landscapes
methylammonium lead iodide
perovskites
Single crystals
solar cells
trap states
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Beschreibung
Zusammenfassung:The density of trap states within the bandgap of methylammonium lead iodide single crystals is investigated. Defect states close to both the conduction and valence bands are probed. Additionally, a comprehensive electronic characterization of crystals is carried out, including measurements of the electron and hole mobility, and the energy landscape (band diagram) at the surface.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201505162