Publication

Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites

Dong, J., Shao, S., Kahmann, S., Rommens, A. J., Hermida-Merino, D., ten Brink, G. H., Loi, M. A. & Portale, G., 31-Mar-2020, In : Advanced Functional Materials. 11 p., 2001294.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Dong, J., Shao, S., Kahmann, S., Rommens, A. J., Hermida-Merino, D., ten Brink, G. H., ... Portale, G. (2020). Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites. Advanced Functional Materials, [2001294]. https://doi.org/10.1002/adfm.202001294

Author

Dong, Jingjin ; Shao, Shuyan ; Kahmann, Simon ; Rommens, Alexander J. ; Hermida-Merino, Daniel ; ten Brink, Gert H. ; Loi, Maria A. ; Portale, Giuseppe. / Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites. In: Advanced Functional Materials. 2020.

Harvard

Dong, J, Shao, S, Kahmann, S, Rommens, AJ, Hermida-Merino, D, ten Brink, GH, Loi, MA & Portale, G 2020, 'Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites', Advanced Functional Materials. https://doi.org/10.1002/adfm.202001294

Standard

Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites. / Dong, Jingjin; Shao, Shuyan; Kahmann, Simon; Rommens, Alexander J.; Hermida-Merino, Daniel; ten Brink, Gert H.; Loi, Maria A.; Portale, Giuseppe.

In: Advanced Functional Materials, 31.03.2020.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Dong J, Shao S, Kahmann S, Rommens AJ, Hermida-Merino D, ten Brink GH et al. Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites. Advanced Functional Materials. 2020 Mar 31. 2001294. https://doi.org/10.1002/adfm.202001294


BibTeX

@article{0e49220ac46e45ef9074be5962ae825b,
title = "Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites",
abstract = "Knowledge of the mechanism of formation, orientation, and location of phases inside thin perovskite films is essential to optimize their optoelectronic properties. Among the most promising, low toxicity, lead-free perovskites, the tin-based ones are receiving much attention. Here, an extensive in situ and ex situ structural study is performed on the mechanism of crystallization from solution of 3D formamidinium tin iodide (FASnI(3)), 2D phenylethylammonium tin iodide (PEA(2)SnI(4)), and hybrid PEA(2)FA(n)(-1)Sn(n)I(3)(n)(+1) Ruddlesden-Popper perovskites. Addition of small amounts of low-dimensional component promotes oriented 3D-like crystallite growth in the top part of the film, together with an aligned quasi-2D bottom-rich phase. The sporadic bulk nucleation occurring in the pure 3D system is negligible in the pure 2D and in the hybrid systems with sufficiently high PEA content, where only surface crystallization occurs. Moreover, tin-based perovskites form through a direct conversion of a disordered precursor phase without forming ordered solvated intermediates and thus without the need of thermal annealing steps. The findings are used to explain the device performances over a wide range of composition and shed light onto the mechanism of the formation of one of the most promising Sn-based perovskites, providing opportunities to further improve the performances of these interesting Pb-free materials.",
keywords = "crystal orientation, film formation mechanism, in situ GIWAXS, Ruddlesden-Popper, spin coating, tin perovskite solar cells, SOLAR-CELLS, HALIDE PEROVSKITES, PHASE-CHANGE, THIN-FILMS, TIN, CRYSTALLIZATION, MICROSTRUCTURE, KINETICS, ELECTRON, MICROMETER",
author = "Jingjin Dong and Shuyan Shao and Simon Kahmann and Rommens, {Alexander J.} and Daniel Hermida-Merino and {ten Brink}, {Gert H.} and Loi, {Maria A.} and Giuseppe Portale",
year = "2020",
month = "3",
day = "31",
doi = "10.1002/adfm.202001294",
language = "English",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "WILEY-V C H VERLAG GMBH",

}

RIS

TY - JOUR

T1 - Mechanism of Crystal Formation in Ruddlesden-Popper Sn-Based Perovskites

AU - Dong, Jingjin

AU - Shao, Shuyan

AU - Kahmann, Simon

AU - Rommens, Alexander J.

AU - Hermida-Merino, Daniel

AU - ten Brink, Gert H.

AU - Loi, Maria A.

AU - Portale, Giuseppe

PY - 2020/3/31

Y1 - 2020/3/31

N2 - Knowledge of the mechanism of formation, orientation, and location of phases inside thin perovskite films is essential to optimize their optoelectronic properties. Among the most promising, low toxicity, lead-free perovskites, the tin-based ones are receiving much attention. Here, an extensive in situ and ex situ structural study is performed on the mechanism of crystallization from solution of 3D formamidinium tin iodide (FASnI(3)), 2D phenylethylammonium tin iodide (PEA(2)SnI(4)), and hybrid PEA(2)FA(n)(-1)Sn(n)I(3)(n)(+1) Ruddlesden-Popper perovskites. Addition of small amounts of low-dimensional component promotes oriented 3D-like crystallite growth in the top part of the film, together with an aligned quasi-2D bottom-rich phase. The sporadic bulk nucleation occurring in the pure 3D system is negligible in the pure 2D and in the hybrid systems with sufficiently high PEA content, where only surface crystallization occurs. Moreover, tin-based perovskites form through a direct conversion of a disordered precursor phase without forming ordered solvated intermediates and thus without the need of thermal annealing steps. The findings are used to explain the device performances over a wide range of composition and shed light onto the mechanism of the formation of one of the most promising Sn-based perovskites, providing opportunities to further improve the performances of these interesting Pb-free materials.

AB - Knowledge of the mechanism of formation, orientation, and location of phases inside thin perovskite films is essential to optimize their optoelectronic properties. Among the most promising, low toxicity, lead-free perovskites, the tin-based ones are receiving much attention. Here, an extensive in situ and ex situ structural study is performed on the mechanism of crystallization from solution of 3D formamidinium tin iodide (FASnI(3)), 2D phenylethylammonium tin iodide (PEA(2)SnI(4)), and hybrid PEA(2)FA(n)(-1)Sn(n)I(3)(n)(+1) Ruddlesden-Popper perovskites. Addition of small amounts of low-dimensional component promotes oriented 3D-like crystallite growth in the top part of the film, together with an aligned quasi-2D bottom-rich phase. The sporadic bulk nucleation occurring in the pure 3D system is negligible in the pure 2D and in the hybrid systems with sufficiently high PEA content, where only surface crystallization occurs. Moreover, tin-based perovskites form through a direct conversion of a disordered precursor phase without forming ordered solvated intermediates and thus without the need of thermal annealing steps. The findings are used to explain the device performances over a wide range of composition and shed light onto the mechanism of the formation of one of the most promising Sn-based perovskites, providing opportunities to further improve the performances of these interesting Pb-free materials.

KW - crystal orientation

KW - film formation mechanism

KW - in situ GIWAXS

KW - Ruddlesden-Popper

KW - spin coating

KW - tin perovskite solar cells

KW - SOLAR-CELLS

KW - HALIDE PEROVSKITES

KW - PHASE-CHANGE

KW - THIN-FILMS

KW - TIN

KW - CRYSTALLIZATION

KW - MICROSTRUCTURE

KW - KINETICS

KW - ELECTRON

KW - MICROMETER

U2 - 10.1002/adfm.202001294

DO - 10.1002/adfm.202001294

M3 - Article

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

M1 - 2001294

ER -

ID: 121946762