Facile route to freestanding CH3NH3PbI3 crystals using inverse solubility

CH3NH3PbI3 was found to exhibit inverse solubility at high temperatures in gamma-butyrolactone. Making use of this unusual, so far unreported phenomenon, we present a facile method for the growth of freestanding crystals of CH3NH3PbI3 from solution without addition of any capping agents or seed particles. Large, strongly faceted crystals could be grown within minutes. This finding may aid in understanding the crystallization process of CH3NH3PbI3 from solution that may lead to improved morphological control of film deposition for a range of device architectures. Our process offers a facile and rapid route to freestanding crystals for use in a broad range of characterization techniques.


Published in:
Scientific Reports, 5, 11654
Year:
2015
Publisher:
London, Nature Publishing Group
ISSN:
2045-2322
Laboratories:




 Record created 2015-09-28, last modified 2018-09-13


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