Synthesis and Characterization of Lead-Free (CH3)3SSnI3 1-D Perovskite

Andreas Kaltzoglou; Georgios K. Manolis; Mohamed M. Elsenety; Ioannis Koutselas; Vassilis Psycharis; Athanassios G. Kontos; Polycarpos Falaras

doi:10.1007/s11664-019-07591-y

Synthesis and Characterization of Lead-Free (CH₃)₃SSnI₃ 1-D Perovskite

Andreas Kaltzoglou
, Georgios K. Manolis
, Mohamed M. Elsenety
, Ioannis Koutselas
, Vassilis Psycharis
, Athanassios G. Kontos
, Polycarpos Falaras^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We report on the preparation, crystal structure and spectral properties of the trimethylsulfonium tin triiodide perovskite, (CH₃)₃SSnI₃. The air-sensitive lead-free perovskite compound is prepared by reacting the (CH₃)₃SI and SnI₂ solid precursors in evacuated silica tubes at 100°C. According to powder x-ray diffraction and Rietveld analysis, (CH₃)₃SSnI₃ crystallizes at room temperature in hexagonal symmetry and forms a 1D network of face-sharing [SnI₆] octahedra along the c axis. UV–Vis reflectance and photoluminescence spectroscopies reveal a direct energy band gap of 2.85 eV accompanied by a weak luminescence signal. Multi-temperature Raman spectroscopy reveals a fully reversible structural phase transition just below 0°C related to the reduction of the unit cell symmetry. Comparison with the widely studied Cs-, CH₃NH₃- and (NH₂)₂CH-based 3D-perovskites that are commonly used in third generation solar cells confirms the higher stability of (CH₃)₃SSnI₃. This is attributed to the beneficial role of the bulky trimethylsulfonium group in the ASnI₃ structure.

Original language	English
Pages (from-to)	7533-7538
Number of pages	6
Journal	Journal of Electronic Materials
Volume	48
Issue number	11
DOIs	https://doi.org/10.1007/s11664-019-07591-y
State	Published - 1 Nov 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Lead-free hybrid perovskite
luminescence
phase transitions
solar cells
vibrational properties

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1007/s11664-019-07591-y

Cite this

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title = "Synthesis and Characterization of Lead-Free (CH3)3SSnI3 1-D Perovskite",

abstract = "We report on the preparation, crystal structure and spectral properties of the trimethylsulfonium tin triiodide perovskite, (CH3)3SSnI3. The air-sensitive lead-free perovskite compound is prepared by reacting the (CH3)3SI and SnI2 solid precursors in evacuated silica tubes at 100°C. According to powder x-ray diffraction and Rietveld analysis, (CH3)3SSnI3 crystallizes at room temperature in hexagonal symmetry and forms a 1D network of face-sharing [SnI6] octahedra along the c axis. UV–Vis reflectance and photoluminescence spectroscopies reveal a direct energy band gap of 2.85 eV accompanied by a weak luminescence signal. Multi-temperature Raman spectroscopy reveals a fully reversible structural phase transition just below 0°C related to the reduction of the unit cell symmetry. Comparison with the widely studied Cs-, CH3NH3- and (NH2)2CH-based 3D-perovskites that are commonly used in third generation solar cells confirms the higher stability of (CH3)3SSnI3. This is attributed to the beneficial role of the bulky trimethylsulfonium group in the ASnI3 structure.",

keywords = "Lead-free hybrid perovskite, luminescence, phase transitions, solar cells, vibrational properties",

author = "Andreas Kaltzoglou and Manolis, \{Georgios K.\} and Elsenety, \{Mohamed M.\} and Ioannis Koutselas and Vassilis Psycharis and Kontos, \{Athanassios G.\} and Polycarpos Falaras",

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doi = "10.1007/s11664-019-07591-y",

language = "English",

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T1 - Synthesis and Characterization of Lead-Free (CH3)3SSnI3 1-D Perovskite

AU - Kaltzoglou, Andreas

AU - Manolis, Georgios K.

AU - Elsenety, Mohamed M.

AU - Koutselas, Ioannis

AU - Psycharis, Vassilis

AU - Kontos, Athanassios G.

AU - Falaras, Polycarpos

PY - 2019/11/1

Y1 - 2019/11/1

N2 - We report on the preparation, crystal structure and spectral properties of the trimethylsulfonium tin triiodide perovskite, (CH3)3SSnI3. The air-sensitive lead-free perovskite compound is prepared by reacting the (CH3)3SI and SnI2 solid precursors in evacuated silica tubes at 100°C. According to powder x-ray diffraction and Rietveld analysis, (CH3)3SSnI3 crystallizes at room temperature in hexagonal symmetry and forms a 1D network of face-sharing [SnI6] octahedra along the c axis. UV–Vis reflectance and photoluminescence spectroscopies reveal a direct energy band gap of 2.85 eV accompanied by a weak luminescence signal. Multi-temperature Raman spectroscopy reveals a fully reversible structural phase transition just below 0°C related to the reduction of the unit cell symmetry. Comparison with the widely studied Cs-, CH3NH3- and (NH2)2CH-based 3D-perovskites that are commonly used in third generation solar cells confirms the higher stability of (CH3)3SSnI3. This is attributed to the beneficial role of the bulky trimethylsulfonium group in the ASnI3 structure.

AB - We report on the preparation, crystal structure and spectral properties of the trimethylsulfonium tin triiodide perovskite, (CH3)3SSnI3. The air-sensitive lead-free perovskite compound is prepared by reacting the (CH3)3SI and SnI2 solid precursors in evacuated silica tubes at 100°C. According to powder x-ray diffraction and Rietveld analysis, (CH3)3SSnI3 crystallizes at room temperature in hexagonal symmetry and forms a 1D network of face-sharing [SnI6] octahedra along the c axis. UV–Vis reflectance and photoluminescence spectroscopies reveal a direct energy band gap of 2.85 eV accompanied by a weak luminescence signal. Multi-temperature Raman spectroscopy reveals a fully reversible structural phase transition just below 0°C related to the reduction of the unit cell symmetry. Comparison with the widely studied Cs-, CH3NH3- and (NH2)2CH-based 3D-perovskites that are commonly used in third generation solar cells confirms the higher stability of (CH3)3SSnI3. This is attributed to the beneficial role of the bulky trimethylsulfonium group in the ASnI3 structure.

KW - Lead-free hybrid perovskite

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KW - vibrational properties

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