Publication Date:
2015-01-31
Description:
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.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shi, Dong -- Adinolfi, Valerio -- Comin, Riccardo -- Yuan, Mingjian -- Alarousu, Erkki -- Buin, Andrei -- Chen, Yin -- Hoogland, Sjoerd -- Rothenberger, Alexander -- Katsiev, Khabiboulakh -- Losovyj, Yaroslav -- Zhang, Xin -- Dowben, Peter A -- Mohammed, Omar F -- Sargent, Edward H -- Bakr, Osman M -- New York, N.Y. -- Science. 2015 Jan 30;347(6221):519-22. doi: 10.1126/science.aaa2725.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Solar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia. ; Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada. ; Department of Chemistry, Indiana University, Bloomington, IN 47405, USA. ; Department of Physics and Astronomy, University of Nebraska, Lincoln, NE 68588, USA. ; Solar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia. osman.bakr@kaust.edu.sa.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25635092" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
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Physics
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