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High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization.

Saidaminov MI, Abdelhady AL, Murali B, Alarousu E, Burlakov VM, Peng W, Dursun I, Wang L, He Y, Maculan G, Goriely A, Wu T, Mohammed OF, Bakr OM - Nat Commun (2015)

Bottom Line: The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures.The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters.The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

View Article: PubMed Central - PubMed

Affiliation: Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.

ABSTRACT
Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA = CH3NH3(+), X = Br(-) or I(-)) have shown remarkably low trap density and charge transport properties; however, growth of such high-quality semiconductors is a time-consuming process. Here we present a rapid crystal growth process to obtain MAPbX3 single crystals, an order of magnitude faster than previous reports. The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures. The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters. Despite the rapidity of the method, the grown crystals exhibit transport properties and trap densities comparable to the highest quality MAPbX3 reported to date. The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

No MeSH data available.


Related in: MedlinePlus

Continuous growth and crystal shape control.(a) Continuous growth of an MAPbBr3 crystal by moving the crystal into a larger vial with a fresh growth solution. (b) Shape-controlled crystals of MAPbBr3 (orange) and MAPbI3 (black) by varying the geometry of the confining vessel. From left to right—crystals grown in a round-bottom test tube and a 2-mm cuvette.
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f2: Continuous growth and crystal shape control.(a) Continuous growth of an MAPbBr3 crystal by moving the crystal into a larger vial with a fresh growth solution. (b) Shape-controlled crystals of MAPbBr3 (orange) and MAPbI3 (black) by varying the geometry of the confining vessel. From left to right—crystals grown in a round-bottom test tube and a 2-mm cuvette.

Mentions: Further growth of the crystal was achieved by carefully removing the crystal and placing it in a fresh 1 M solution of the precursors (Fig. 2a). As shown in Supplementary Movie 2 for MAPbBr3, we observed a possible shape control of the crystal by the geometry of crystallization vessel. Hence, single crystals of MAPbBr3 and MAPbI3 were synthesized with a number of different shapes by changing the geometry of the vessel in which crystallization takes place (Fig. 2b).


High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization.

Saidaminov MI, Abdelhady AL, Murali B, Alarousu E, Burlakov VM, Peng W, Dursun I, Wang L, He Y, Maculan G, Goriely A, Wu T, Mohammed OF, Bakr OM - Nat Commun (2015)

Continuous growth and crystal shape control.(a) Continuous growth of an MAPbBr3 crystal by moving the crystal into a larger vial with a fresh growth solution. (b) Shape-controlled crystals of MAPbBr3 (orange) and MAPbI3 (black) by varying the geometry of the confining vessel. From left to right—crystals grown in a round-bottom test tube and a 2-mm cuvette.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4544059&req=5

f2: Continuous growth and crystal shape control.(a) Continuous growth of an MAPbBr3 crystal by moving the crystal into a larger vial with a fresh growth solution. (b) Shape-controlled crystals of MAPbBr3 (orange) and MAPbI3 (black) by varying the geometry of the confining vessel. From left to right—crystals grown in a round-bottom test tube and a 2-mm cuvette.
Mentions: Further growth of the crystal was achieved by carefully removing the crystal and placing it in a fresh 1 M solution of the precursors (Fig. 2a). As shown in Supplementary Movie 2 for MAPbBr3, we observed a possible shape control of the crystal by the geometry of crystallization vessel. Hence, single crystals of MAPbBr3 and MAPbI3 were synthesized with a number of different shapes by changing the geometry of the vessel in which crystallization takes place (Fig. 2b).

Bottom Line: The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures.The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters.The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

View Article: PubMed Central - PubMed

Affiliation: Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.

ABSTRACT
Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA = CH3NH3(+), X = Br(-) or I(-)) have shown remarkably low trap density and charge transport properties; however, growth of such high-quality semiconductors is a time-consuming process. Here we present a rapid crystal growth process to obtain MAPbX3 single crystals, an order of magnitude faster than previous reports. The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures. The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters. Despite the rapidity of the method, the grown crystals exhibit transport properties and trap densities comparable to the highest quality MAPbX3 reported to date. The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

No MeSH data available.


Related in: MedlinePlus