A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain

Yuan Liu; Tong Zhu; Luke Grater; Hao Chen; Roberto dos Reis; Aidan Maxwell; Matthew Cheng; Yitong Dong; Sam Teale; Adam F.G. Leontowich; Chang Yong Kim; Phoebe Tsz shan Chan; Mingcong Wang; Watcharaphol Paritmongkol; Yajun Gao; So Min Park; Jian Xu; Jafar Iqbal Khan; Frédéric Laquai; Gilbert C. Walker; Vinayak P. Dravid; Bin Chen; Edward H. Sargent

doi:10.1016/j.matt.2023.10.015

A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain

Yuan Liu, Tong Zhu, Luke Grater, Hao Chen, Roberto dos Reis, Aidan Maxwell, Matthew Cheng, Yitong Dong, Sam Teale, Adam F.G. Leontowich, Chang Yong Kim, Phoebe Tsz shan Chan, Mingcong Wang, Watcharaphol Paritmongkol, Yajun Gao, So Min Park, Jian Xu, Jafar Iqbal Khan, Frédéric Laquai, Gilbert C. WalkerVinayak P. Dravid, Bin Chen^*, Edward H. Sargent^*

^*Corresponding author for this work

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

Abstract

Compressive strain engineering improves perovskite stability. Two-dimensional compressive strain along the in-plane direction can be applied to perovskites through the substrate; however, this in-plane strain results in an offsetting tensile strain perpendicular to the substrate, linked to the positive Poisson ratio of perovskites. Substrate-induced strain engineering has not yet resulted in state-of-the-art operational stability. Here, we seek instead to implement hydrostatic strain in perovskites by embedding lattice-mismatched perovskite quantum dots (QDs) into a perovskite matrix. QD-in-matrix perovskites show a homogeneously strained lattice as evidenced by grazing-incidence X-ray diffraction. We fabricate mixed-halide wide-band-gap (E_g; 1.77 eV) QD-in-matrix perovskite solar cells that maintain >90% of their initial power conversion efficiency (PCE) after 200 h of one-sun operation at the maximum power point (MPP), a significant improvement relative to matrix-only devices, which lose 10% (relative) of their initial PCE after 5 h of MPP tracking.

Original language	English (US)
Pages (from-to)	107-122
Number of pages	16
Journal	Matter
Volume	7
Issue number	1
DOIs	https://doi.org/10.1016/j.matt.2023.10.015
State	Published - Jan 3 2024

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Inc.

Keywords

Hydrostatic strain
MAP 2: Benchmark
Mixed-halide perovskites
Photovoltaics
Quantum dot-in-matrix
Strain engineering

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1016/j.matt.2023.10.015

Cite this

Liu, Y., Zhu, T., Grater, L., Chen, H., dos Reis, R., Maxwell, A., Cheng, M., Dong, Y., Teale, S., Leontowich, A. F. G., Kim, C. Y., Chan, P. T. S., Wang, M., Paritmongkol, W., Gao, Y., Park, S. M., Xu, J., Khan, J. I., Laquai, F., ... Sargent, E. H. (2024). A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain. Matter, 7(1), 107-122. https://doi.org/10.1016/j.matt.2023.10.015

@article{cccc073c3e6c4710bbd8d4831f271f89,

title = "A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain",

abstract = "Compressive strain engineering improves perovskite stability. Two-dimensional compressive strain along the in-plane direction can be applied to perovskites through the substrate; however, this in-plane strain results in an offsetting tensile strain perpendicular to the substrate, linked to the positive Poisson ratio of perovskites. Substrate-induced strain engineering has not yet resulted in state-of-the-art operational stability. Here, we seek instead to implement hydrostatic strain in perovskites by embedding lattice-mismatched perovskite quantum dots (QDs) into a perovskite matrix. QD-in-matrix perovskites show a homogeneously strained lattice as evidenced by grazing-incidence X-ray diffraction. We fabricate mixed-halide wide-band-gap (Eg; 1.77 eV) QD-in-matrix perovskite solar cells that maintain >90% of their initial power conversion efficiency (PCE) after 200 h of one-sun operation at the maximum power point (MPP), a significant improvement relative to matrix-only devices, which lose 10% (relative) of their initial PCE after 5 h of MPP tracking.",

keywords = "Hydrostatic strain, MAP 2: Benchmark, Mixed-halide perovskites, Photovoltaics, Quantum dot-in-matrix, Strain engineering",

author = "Yuan Liu and Tong Zhu and Luke Grater and Hao Chen and {dos Reis}, Roberto and Aidan Maxwell and Matthew Cheng and Yitong Dong and Sam Teale and Leontowich, {Adam F.G.} and Kim, {Chang Yong} and Chan, {Phoebe Tsz shan} and Mingcong Wang and Watcharaphol Paritmongkol and Yajun Gao and Park, {So Min} and Jian Xu and Khan, {Jafar Iqbal} and Fr{\'e}d{\'e}ric Laquai and Walker, {Gilbert C.} and Dravid, {Vinayak P.} and Bin Chen and Sargent, {Edward H.}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2024",

month = jan,

day = "3",

doi = "10.1016/j.matt.2023.10.015",

language = "English (US)",

volume = "7",

pages = "107--122",

journal = "Matter",

issn = "2590-2393",

publisher = "Cell Press",

number = "1",

}

Liu, Y, Zhu, T, Grater, L, Chen, H, dos Reis, R, Maxwell, A, Cheng, M, Dong, Y, Teale, S, Leontowich, AFG, Kim, CY, Chan, PTS, Wang, M, Paritmongkol, W, Gao, Y, Park, SM, Xu, J, Khan, JI, Laquai, F, Walker, GC, Dravid, VP, Chen, B & Sargent, EH 2024, 'A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain', Matter, vol. 7, no. 1, pp. 107-122. https://doi.org/10.1016/j.matt.2023.10.015

TY - JOUR

T1 - A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain

AU - Liu, Yuan

AU - Zhu, Tong

AU - Grater, Luke

AU - Chen, Hao

AU - dos Reis, Roberto

AU - Maxwell, Aidan

AU - Cheng, Matthew

AU - Dong, Yitong

AU - Teale, Sam

AU - Leontowich, Adam F.G.

AU - Kim, Chang Yong

AU - Chan, Phoebe Tsz shan

AU - Wang, Mingcong

AU - Paritmongkol, Watcharaphol

AU - Gao, Yajun

AU - Park, So Min

AU - Xu, Jian

AU - Khan, Jafar Iqbal

AU - Laquai, Frédéric

AU - Walker, Gilbert C.

AU - Dravid, Vinayak P.

AU - Chen, Bin

AU - Sargent, Edward H.

PY - 2024/1/3

Y1 - 2024/1/3

N2 - Compressive strain engineering improves perovskite stability. Two-dimensional compressive strain along the in-plane direction can be applied to perovskites through the substrate; however, this in-plane strain results in an offsetting tensile strain perpendicular to the substrate, linked to the positive Poisson ratio of perovskites. Substrate-induced strain engineering has not yet resulted in state-of-the-art operational stability. Here, we seek instead to implement hydrostatic strain in perovskites by embedding lattice-mismatched perovskite quantum dots (QDs) into a perovskite matrix. QD-in-matrix perovskites show a homogeneously strained lattice as evidenced by grazing-incidence X-ray diffraction. We fabricate mixed-halide wide-band-gap (Eg; 1.77 eV) QD-in-matrix perovskite solar cells that maintain >90% of their initial power conversion efficiency (PCE) after 200 h of one-sun operation at the maximum power point (MPP), a significant improvement relative to matrix-only devices, which lose 10% (relative) of their initial PCE after 5 h of MPP tracking.

AB - Compressive strain engineering improves perovskite stability. Two-dimensional compressive strain along the in-plane direction can be applied to perovskites through the substrate; however, this in-plane strain results in an offsetting tensile strain perpendicular to the substrate, linked to the positive Poisson ratio of perovskites. Substrate-induced strain engineering has not yet resulted in state-of-the-art operational stability. Here, we seek instead to implement hydrostatic strain in perovskites by embedding lattice-mismatched perovskite quantum dots (QDs) into a perovskite matrix. QD-in-matrix perovskites show a homogeneously strained lattice as evidenced by grazing-incidence X-ray diffraction. We fabricate mixed-halide wide-band-gap (Eg; 1.77 eV) QD-in-matrix perovskite solar cells that maintain >90% of their initial power conversion efficiency (PCE) after 200 h of one-sun operation at the maximum power point (MPP), a significant improvement relative to matrix-only devices, which lose 10% (relative) of their initial PCE after 5 h of MPP tracking.

KW - Hydrostatic strain

KW - MAP 2: Benchmark

KW - Mixed-halide perovskites

KW - Photovoltaics

KW - Quantum dot-in-matrix

KW - Strain engineering

UR - http://www.scopus.com/inward/record.url?scp=85177760950&partnerID=8YFLogxK

U2 - 10.1016/j.matt.2023.10.015

DO - 10.1016/j.matt.2023.10.015

M3 - Article

AN - SCOPUS:85177760950

SN - 2590-2393

VL - 7

SP - 107

EP - 122

JO - Matter

JF - Matter

IS - 1

ER -

A three-dimensional quantum dot network stabilizes perovskite solids via hydrostatic strain

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this