Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals | Zendy

Dong Shi | Zendy; Valerio Adinolfi | Zendy; Riccardo Comin | Zendy; Mingjian Yuan | Zendy; Erkki Alarousu | Zendy; Andrei Buin | Zendy; Yin Chen | Zendy; Sjoerd Hoogland | Zendy; A. Rothenberger | Zendy; Khabiboulakh Katsiev | Zendy; Yaroslav Losovyj | Zendy; Xin Zhang | Zendy; P. A. Dowben | Zendy; Omar F. Mohammed | Zendy; Edward H. Sargent | Zendy; Osman M. Bakr | Zendy

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Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals

Author(s) -

Dong Shi,

Valerio Adinolfi,

Riccardo Comin,

Mingjian Yuan,

Erkki Alarousu,

Andrei Buin,

Yin Chen,

Sjoerd Hoogland,

A. Rothenberger,

Khabiboulakh Katsiev,

Yaroslav Losovyj,

Xin Zhang,

P. A. Dowben,

Omar F. Mohammed,

Edward H. Sargent,

Osman M. Bakr

Publication year - 2015

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.aaa2725

Subject(s) - trihalide , trap (plumbing) , diffusion , perovskite (structure) , chemical physics , chemistry , materials science , analytical chemistry (journal) , crystallography , inorganic chemistry , environmental chemistry , thermodynamics , physics , halide , meteorology

The fundamental properties and ultimate performance limits of organolead trihalide MAPbX3 (MA = CH3NH3(+); X = Br(-) or I(-)) perovskites remain obscured by extensive disorder in polycrystalline MAPbX3 films. We report an antisolvent vapor-assisted crystallization approach that enables us to create sizable crack-free MAPbX3 single crystals with volumes exceeding 100 cubic millimeters. These large single crystals enabled a detailed characterization of their optical and charge transport characteristics. We observed exceptionally low trap-state densities on the order of 10(9) to 10(10) per cubic centimeter in MAPbX3 single crystals (comparable to the best photovoltaic-quality silicon) and charge carrier diffusion lengths exceeding 10 micrometers. These results were validated with density functional theory calculations.

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