Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States

Jie Meng; Zhenyun Lan; Mohamed Abdellah; Bin Yang; Susanne Mossin; Mingli Liang; Maria Naumova; Qi Shi; Sol Laura Gutierrez Alvarez; Yang Liu; Weihua Lin; Ivano Eligio Castelli; Sophie E Canton; Tönu Pullerits; Kaibo Zheng

doi:10.1021/acs.jpclett.0c01050

Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States

Jie Meng, Zhenyun Lan, Mohamed Abdellah, Bin Yang, Susanne Mossin, Mingli Liang, Maria Naumova, Qi Shi, Sol Laura Gutierrez Alvarez, Yang Liu, Weihua Lin, Ivano Eligio Castelli, Sophie E Canton, Tönu Pullerits, Kaibo Zheng^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

207 Downloads (Pure)

Abstract

Transition-metal ion doping has been demonstrated to be effective for tuning the photoluminescence properties of perovskite quantum dots (QDs). However, it would inevitably introduce defects in the lattice. As the Mn concentration increases, the Mn dopant photoluminescence quantum yield (PLQY) first increases and then decreases. Herein the influence of the dopant and the defect states on the photophysics in Mn-doped CsPbCl3 QDs was studied by time-resolved spectroscopies, whereas the energy levels of the possible defect states were analyzed by density functional theory calculations. We reveal the formation of deep interstitials defects (Cli) by Mn2+ doping. The depopulation of initial QD exciton states is a competition between exciton-dopant energy transfer and defect trapping on an early time scale (

Original language	English
Journal	Journal of Physical Chemistry Letters
Volume	11
Pages (from-to)	3705-3711
ISSN	1948-7185
DOIs	https://doi.org/10.1021/acs.jpclett.0c01050
Publication status	Published - 2020

Access to Document

10.1021/acs.jpclett.0c01050

FulltextFinal published version, 2.9 MB

OpenUrl availability

Full text

Cite this

Meng, J., Lan, Z., Abdellah, M., Yang, B., Mossin, S., Liang, M., Naumova, M., Shi, Q., Gutierrez Alvarez, S. L., Liu, Y., Lin, W., Castelli, I. E., Canton, S. E., Pullerits, T., & Zheng, K. (2020). Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States. Journal of Physical Chemistry Letters, 11, 3705-3711. https://doi.org/10.1021/acs.jpclett.0c01050

@article{16e2abe45d214a05a2f85a8855a3ba11,

title = "Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States",

abstract = "Transition-metal ion doping has been demonstrated to be effective for tuning the photoluminescence properties of perovskite quantum dots (QDs). However, it would inevitably introduce defects in the lattice. As the Mn concentration increases, the Mn dopant photoluminescence quantum yield (PLQY) first increases and then decreases. Herein the influence of the dopant and the defect states on the photophysics in Mn-doped CsPbCl3 QDs was studied by time-resolved spectroscopies, whereas the energy levels of the possible defect states were analyzed by density functional theory calculations. We reveal the formation of deep interstitials defects (Cli) by Mn2+ doping. The depopulation of initial QD exciton states is a competition between exciton-dopant energy transfer and defect trapping on an early time scale (",

author = "Jie Meng and Zhenyun Lan and Mohamed Abdellah and Bin Yang and Susanne Mossin and Mingli Liang and Maria Naumova and Qi Shi and {Gutierrez Alvarez}, {Sol Laura} and Yang Liu and Weihua Lin and Castelli, {Ivano Eligio} and Canton, {Sophie E} and T{\"o}nu Pullerits and Kaibo Zheng",

year = "2020",

doi = "10.1021/acs.jpclett.0c01050",

language = "English",

volume = "11",

pages = "3705--3711",

journal = "Journal of Physical Chemistry Letters",

issn = "1948-7185",

publisher = "American Chemical Society",

}

Meng, J , Lan, Z, Abdellah, M, Yang, B, Mossin, S, Liang, M, Naumova, M, Shi, Q, Gutierrez Alvarez, SL, Liu, Y, Lin, W, Castelli, IE, Canton, SE, Pullerits, T & Zheng, K 2020, 'Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States', Journal of Physical Chemistry Letters, vol. 11, pp. 3705-3711. https://doi.org/10.1021/acs.jpclett.0c01050

TY - JOUR

T1 - Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States

AU - Meng, Jie

AU - Lan, Zhenyun

AU - Abdellah, Mohamed

AU - Yang, Bin

AU - Mossin, Susanne

AU - Liang, Mingli

AU - Naumova, Maria

AU - Shi, Qi

AU - Gutierrez Alvarez, Sol Laura

AU - Liu, Yang

AU - Lin, Weihua

AU - Castelli, Ivano Eligio

AU - Canton, Sophie E

AU - Pullerits, Tönu

AU - Zheng, Kaibo

PY - 2020

Y1 - 2020

N2 - Transition-metal ion doping has been demonstrated to be effective for tuning the photoluminescence properties of perovskite quantum dots (QDs). However, it would inevitably introduce defects in the lattice. As the Mn concentration increases, the Mn dopant photoluminescence quantum yield (PLQY) first increases and then decreases. Herein the influence of the dopant and the defect states on the photophysics in Mn-doped CsPbCl3 QDs was studied by time-resolved spectroscopies, whereas the energy levels of the possible defect states were analyzed by density functional theory calculations. We reveal the formation of deep interstitials defects (Cli) by Mn2+ doping. The depopulation of initial QD exciton states is a competition between exciton-dopant energy transfer and defect trapping on an early time scale (

AB - Transition-metal ion doping has been demonstrated to be effective for tuning the photoluminescence properties of perovskite quantum dots (QDs). However, it would inevitably introduce defects in the lattice. As the Mn concentration increases, the Mn dopant photoluminescence quantum yield (PLQY) first increases and then decreases. Herein the influence of the dopant and the defect states on the photophysics in Mn-doped CsPbCl3 QDs was studied by time-resolved spectroscopies, whereas the energy levels of the possible defect states were analyzed by density functional theory calculations. We reveal the formation of deep interstitials defects (Cli) by Mn2+ doping. The depopulation of initial QD exciton states is a competition between exciton-dopant energy transfer and defect trapping on an early time scale (

U2 - 10.1021/acs.jpclett.0c01050

DO - 10.1021/acs.jpclett.0c01050

M3 - Journal article

C2 - 32329350

SN - 1948-7185

VL - 11

SP - 3705

EP - 3711

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

ER -

Modulating Charge-Carrier Dynamics in Mn-Doped All-Inorganic Halide Perovskite Quantum Dots through the Doping-Induced Deep Trap States

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this