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From Quantum Dots to Micro Crystals: Organolead Triiodide Perovskite Crystal Growth from Isopropanol Solution
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2016 (English)In: ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, ISSN 2162-8769, Vol. 5, no 10, p. P614-P620Article in journal (Refereed) Published
Abstract [en]

The growth mechanism and dependence on precursor conditions are vital for creation of high quality crystalline materials in many fields. Here the growth from nano sized quantum dots to micro crystalline methyl ammonium lead tri-iodide (MAPbI(3)) perovskites prepared from isopropanol solution are reported. Isopropanol is more environmental friendly compared to the commonly used solvents DMF or DMSO, both with relatively high toxicity and the proposed method can be a useful new route to prepare hybrid perovskites. Three different molar ratios of MAPbI3 perovskite solution (MAI:PbI2 of 1: 1, 2: 1 and 0.5: 1) were applied to give insights in the crystal formation mechanism also under non-stoichiometric conditions. Perovskite crystal growth is followed by TEM. From XRD powder diffraction the lattice constants have been determined and compared with results from electron diffraction (ED). Interestingly, there seems to be an occurrence of the cubic phase besides the common tetragonal phase at room temperature. (C) 2016 The Electrochemical Society. All rights reserved.

Place, publisher, year, edition, pages
Electrochemical Society, 2016. Vol. 5, no 10, p. P614-P620
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-200047DOI: 10.1149/2.0241610jssISI: 000388868500019Scopus ID: 2-s2.0-84992221622OAI: oai:DiVA.org:kth-200047DiVA, id: diva2:1068754
Funder
Swedish Energy AgencyStandUpSwedish Research CouncilSwedish Research Council FormasGöran Gustafsson Foundation for promotion of scientific research at Uppala University and Royal Institute of TechnologyKnut and Alice Wallenberg Foundation
Note

QC 20170126

Available from: 2017-01-26 Created: 2017-01-20 Last updated: 2017-01-26Bibliographically approved

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