Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange

J. Jiang, Chidozie Onwudinanti, Ross Hatton, P.A. Bobbert, S. X. Tao

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Due to its thermal stability, lead-free composition and nearly ideal optical and electronic properties, orthorhombic CsSnI3 perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite solar cells (PSCs) [1,2]. However, the susceptibility of this 3-dimensional perovskite towards oxidation in air has limited the development of solar cells based on this material [1]. Here, we report the findings of a computational study which identifies promising RbyCs1-ySn(BrxI1-x)3 perovskites for solar cell applications, prepared by substituting cations (Rb for Cs) and anions (Br for I) in CsSnI3 [3, 4]. We show the evolution of the electronic structure, as well as thermal and structural stabilities upon gradual substitution. Importantly, we demonstrate how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1-x)3 for x>=1/3. We predict that substitution of Cs with Rb results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices. These predictions point the way to the realization of air-stable all-inorganic tin halide perovskites for both single and tandem junction solar cell applications.
Original languageEnglish
Title of host publicationProceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication statusPublished - 2018
EventInternational Conference on Hybrid and Organic Photovoltaics 2018 - Benidorm, Spain
Duration: 28 May 201831 May 2018

Conference

ConferenceInternational Conference on Hybrid and Organic Photovoltaics 2018
Abbreviated titleHOPV18
CountrySpain
CityBenidorm
Period28/05/1831/05/18

Fingerprint

Tin
Ion exchange
Solar cells
Substitution reactions
Air
Electronic properties
Electronic structure
Anions
Cations
Solid solutions
Thermodynamic stability
Optical properties
Oxidation
Lead
Chemical analysis
perovskite

Cite this

Jiang, J., Onwudinanti, C., Hatton, R., Bobbert, P. A., & Tao, S. X. (2018). Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange. In Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Jiang, J. ; Onwudinanti, Chidozie ; Hatton, Ross ; Bobbert, P.A. ; Tao, S. X. / Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange. Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18). 2018.
@inproceedings{5b9a4ff30be84b12bdbbce57be3d11b3,
title = "Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange",
abstract = "Due to its thermal stability, lead-free composition and nearly ideal optical and electronic properties, orthorhombic CsSnI3 perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite solar cells (PSCs) [1,2]. However, the susceptibility of this 3-dimensional perovskite towards oxidation in air has limited the development of solar cells based on this material [1]. Here, we report the findings of a computational study which identifies promising RbyCs1-ySn(BrxI1-x)3 perovskites for solar cell applications, prepared by substituting cations (Rb for Cs) and anions (Br for I) in CsSnI3 [3, 4]. We show the evolution of the electronic structure, as well as thermal and structural stabilities upon gradual substitution. Importantly, we demonstrate how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1-x)3 for x>=1/3. We predict that substitution of Cs with Rb results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices. These predictions point the way to the realization of air-stable all-inorganic tin halide perovskites for both single and tandem junction solar cell applications.",
author = "J. Jiang and Chidozie Onwudinanti and Ross Hatton and P.A. Bobbert and Tao, {S. X.}",
year = "2018",
language = "English",
booktitle = "Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)",

}

Jiang, J, Onwudinanti, C, Hatton, R, Bobbert, PA & Tao, SX 2018, Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange. in Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18). International Conference on Hybrid and Organic Photovoltaics 2018, Benidorm, Spain, 28/05/18.

Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange. / Jiang, J.; Onwudinanti, Chidozie; Hatton, Ross; Bobbert, P.A.; Tao, S. X.

Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18). 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

TY - GEN

T1 - Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange

AU - Jiang, J.

AU - Onwudinanti, Chidozie

AU - Hatton, Ross

AU - Bobbert, P.A.

AU - Tao, S. X.

PY - 2018

Y1 - 2018

N2 - Due to its thermal stability, lead-free composition and nearly ideal optical and electronic properties, orthorhombic CsSnI3 perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite solar cells (PSCs) [1,2]. However, the susceptibility of this 3-dimensional perovskite towards oxidation in air has limited the development of solar cells based on this material [1]. Here, we report the findings of a computational study which identifies promising RbyCs1-ySn(BrxI1-x)3 perovskites for solar cell applications, prepared by substituting cations (Rb for Cs) and anions (Br for I) in CsSnI3 [3, 4]. We show the evolution of the electronic structure, as well as thermal and structural stabilities upon gradual substitution. Importantly, we demonstrate how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1-x)3 for x>=1/3. We predict that substitution of Cs with Rb results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices. These predictions point the way to the realization of air-stable all-inorganic tin halide perovskites for both single and tandem junction solar cell applications.

AB - Due to its thermal stability, lead-free composition and nearly ideal optical and electronic properties, orthorhombic CsSnI3 perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite solar cells (PSCs) [1,2]. However, the susceptibility of this 3-dimensional perovskite towards oxidation in air has limited the development of solar cells based on this material [1]. Here, we report the findings of a computational study which identifies promising RbyCs1-ySn(BrxI1-x)3 perovskites for solar cell applications, prepared by substituting cations (Rb for Cs) and anions (Br for I) in CsSnI3 [3, 4]. We show the evolution of the electronic structure, as well as thermal and structural stabilities upon gradual substitution. Importantly, we demonstrate how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1-x)3 for x>=1/3. We predict that substitution of Cs with Rb results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices. These predictions point the way to the realization of air-stable all-inorganic tin halide perovskites for both single and tandem junction solar cell applications.

UR - https://www.nanoge.org/proceedings/HOPV18/5ab9fe5f2ce3435bfd1da04f

M3 - Conference contribution

BT - Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)

ER -

Jiang J, Onwudinanti C, Hatton R, Bobbert PA, Tao SX. Stabilizing lead-free all-inorganic tin halide Perovskites by ion exchange. In Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18). 2018