Статья

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

Dong ShiSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaValerio AdinolfiDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaRiccardo CominDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaMingjian YuanDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaErkki AlarousuSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaAndrei BuinDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaYin ChenSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaSjoerd HooglandDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaA. RothenbergerSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaKhabiboulakh KatsievSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaYaroslav LosovyjDepartment of Chemistry, Indiana University, Bloomington, IN 47405, USAXin ZhangDepartment of Physics and Astronomy, University of Nebraska, Lincoln, NE 68588, USAP. A. DowbenDepartment of Physics and Astronomy, University of Nebraska, Lincoln, NE 68588, USAOmar F. MohammedSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi ArabiaEdward H. SargentDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, CanadaOsman M. BakrSolar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia

2015en

ABI

Аннотация

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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Идентификаторы

DOI: 10.1126/science.aaa2725

Цитирования и источники

Цитирований: 5Использованных источников: 0

Показатели — AkademScholar