The In-Gap Electronic State Spectrum of Methylammonium Lead Iodide Single-Crystal Perovskites
Journal article published in 2016 by
Valerio Adinolfi,
Mingjian Yuan,
Riccardo Comin,
Emmanuel S. Thibau,
Dong Shi,
Makhsud I. Saidaminov 
,
Pongsakorn Kanjanaboos,
Damir Kopilovic,
Sjoerd Hoogland,
Zheng-Hong Lu,
Osman M. Bakr,
Edward H. Sargent
,
Pongsakorn Kanjanaboos,
Damir Kopilovic,
Sjoerd Hoogland,
Zheng-Hong Lu,
Osman M. Bakr,
Edward H. Sargent
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Abstract
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.