2017
DOI: 10.1021/acsami.6b15563
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Facile Face-Down Annealing Triggered Remarkable Texture Development in CH3NH3PbI3 Films for High-Performance Perovskite Solar Cells

Abstract: Herein, we demonstrate that the facile face-down annealing route which effectively confines the evaporation of residual solvent molecules in one-step deposited precursor films can controllably enable the formation of (110) textured CHNHPbI films consisting of high-crystallinity well-ordered micrometer-sized grains that span vertically the entire film thickness. Such microstructural features dramatically decrease nonradiative recombination sites as well as greatly improve the transport property of charge carrie… Show more

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Cited by 71 publications
(56 citation statements)
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“…Interestingly, the cold antisolvent submerged thin film exhibited significantly intensified peaks Adv. [24,30] For the perovskite films obtained from ambient antisolvent dipping, I (110) /I (310) and I (220) /I (310) were 2.65 and 1.37, respectively. 2019, 9,1901719 www.advenergymat.de www.advancedsciencenews.com at 14.4° and 28.7°, which can be indexed to the (110) and (220) planes of MAPbI 3 , respectively.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Interestingly, the cold antisolvent submerged thin film exhibited significantly intensified peaks Adv. [24,30] For the perovskite films obtained from ambient antisolvent dipping, I (110) /I (310) and I (220) /I (310) were 2.65 and 1.37, respectively. 2019, 9,1901719 www.advenergymat.de www.advancedsciencenews.com at 14.4° and 28.7°, which can be indexed to the (110) and (220) planes of MAPbI 3 , respectively.…”
Section: Resultsmentioning
confidence: 99%
“…[17] Controlling the crystal orientation of large-area perovskite films can provide the opportunity to achieve the maximum PCE. [22][23][24][25][26] Herein, we propose a simple cold antisolvent bathing method allowing large-area compatible crystallization control during methyl ammonium lead triiodide (MAPbI 3 ) perovskite film growth. [21] There have been numerous attempts to develop nucleation and growthcontrolling strategies for obtaining perovskite films with a high degree of crystal orientation.…”
Section: Doi: 101002/aenm201901719mentioning
confidence: 99%
“…When compared with the heated samples without applying pressure, the pressure-induced recrystallization was much more significant and preferred crystallization orientation along the (100) and (200) planes. It was reported that the (100) peaks in perovskites have a high relationship with heavy atoms Pb and Br with long-range ordered packing [16] and are able to provide efficient charge transport [34,35].…”
Section: Resultsmentioning
confidence: 99%
“…A subset of the one step process is the 'Lewis base' approach, rst suggested by Ahn in 2015, 100 and since adopted by others. 101,102 In this method, a 1 : 1 : 1 equimolar adduct of MAI, PbI 2 and DMSO is prepared in DMF. The addition of DMSO as a Lewis base results in signicantly smoother lms than those prepared without it.…”
Section: One Stepmentioning
confidence: 99%