Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site

Hua Li; Qing Wang; Yusuke Oteki; Chao Ding; Dong Liu; Yao Guo; Yusheng Li; Yuyao Wei; Dandan Wang; Yongge Yang; Taizo Masuda; Mengmeng Chen; Zheng Zhang; Tomah Sogabe; Shuzi Hayase; Yoshitaka Okada; Satoshi Iikubo; Qing Shen

doi:10.1002/adma.202301834

Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site

Hua Li, Qing Wang, Yusuke Oteki, Chao Ding, Dong Liu, Yao Guo, Yusheng Li, Yuyao Wei, Dandan Wang, Yongge Yang, Taizo Masuda, Mengmeng Chen, Zheng Zhang, Tomah Sogabe, Shuzi Hayase, Yoshitaka Okada, Satoshi Iikubo, Qing Shen

Materials Physics and Engineering

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

24 Citations (Scopus)

Abstract

A deep understanding of the effect of the A-site cation cross-exchange on the hot-carrier relaxation dynamics in perovskite quantum dots (PQDs) has profound implications on the further development of disruptive photovoltaic technologies. In this study, the hot carrier cooling kinetics of pure FAPbI₃ (FA⁺, CH(NH₂)₂⁺), MAPbI₃ (MA⁺, CH₃NH₃⁺₊), CsPbI₃ (Cs⁺, Cesium) and alloyed FA_0.5MA_0.5PbI₃, FA_0.5Cs_0.5PbI₃, and MA_0.5Cs_0.5PbI₃ QDs are investigated using ultrafast transient absorption (TA) spectroscopy. The lifetimes of the initial fast cooling stage (<1 ps) of all the organic cation-containing PQDs are shorter than those of the CsPbI₃ QDs, as verified by the electron-phonon coupling strength extracted from the temperature-dependent photoluminescence spectra. The lifetimes of the slow cooling stage of the alloyed PQDs are longer under illumination greater than 1 sun, which is ascribed to the introduction of co-vibrational optical phonon modes in the alloyed PQDs. This facilitated efficient acoustic phonon upconversion and enhanced the hot-phonon bottleneck effect, as demonstrated by first-principles calculations.

Original language	English
Article number	2301834
Journal	Advanced Materials
Volume	35
Issue number	38
DOIs	https://doi.org/10.1002/adma.202301834
Publication status	Published - Sept 21 2023

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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Li, H., Wang, Q., Oteki, Y., Ding, C., Liu, D., Guo, Y., Li, Y., Wei, Y., Wang, D., Yang, Y., Masuda, T., Chen, M., Zhang, Z., Sogabe, T., Hayase, S., Okada, Y., Iikubo, S., & Shen, Q. (2023). Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site. Advanced Materials, 35(38), Article 2301834. https://doi.org/10.1002/adma.202301834

Li, H, Wang, Q, Oteki, Y, Ding, C, Liu, D, Guo, Y, Li, Y, Wei, Y, Wang, D, Yang, Y, Masuda, T, Chen, M, Zhang, Z, Sogabe, T, Hayase, S, Okada, Y, Iikubo, S & Shen, Q 2023, 'Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site', Advanced Materials, vol. 35, no. 38, 2301834. https://doi.org/10.1002/adma.202301834

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title = "Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site",

abstract = "A deep understanding of the effect of the A-site cation cross-exchange on the hot-carrier relaxation dynamics in perovskite quantum dots (PQDs) has profound implications on the further development of disruptive photovoltaic technologies. In this study, the hot carrier cooling kinetics of pure FAPbI3 (FA+, CH(NH2)2+), MAPbI3 (MA+, CH3NH3++), CsPbI3 (Cs+, Cesium) and alloyed FA0.5MA0.5PbI3, FA0.5Cs0.5PbI3, and MA0.5Cs0.5PbI3 QDs are investigated using ultrafast transient absorption (TA) spectroscopy. The lifetimes of the initial fast cooling stage (<1 ps) of all the organic cation-containing PQDs are shorter than those of the CsPbI3 QDs, as verified by the electron-phonon coupling strength extracted from the temperature-dependent photoluminescence spectra. The lifetimes of the slow cooling stage of the alloyed PQDs are longer under illumination greater than 1 sun, which is ascribed to the introduction of co-vibrational optical phonon modes in the alloyed PQDs. This facilitated efficient acoustic phonon upconversion and enhanced the hot-phonon bottleneck effect, as demonstrated by first-principles calculations.",

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author = "Hua Li and Qing Wang and Yusuke Oteki and Chao Ding and Dong Liu and Yao Guo and Yusheng Li and Yuyao Wei and Dandan Wang and Yongge Yang and Taizo Masuda and Mengmeng Chen and Zheng Zhang and Tomah Sogabe and Shuzi Hayase and Yoshitaka Okada and Satoshi Iikubo and Qing Shen",

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T1 - Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site

AU - Li, Hua

AU - Wang, Qing

AU - Oteki, Yusuke

AU - Ding, Chao

AU - Liu, Dong

AU - Guo, Yao

AU - Li, Yusheng

AU - Wei, Yuyao

AU - Wang, Dandan

AU - Yang, Yongge

AU - Masuda, Taizo

AU - Chen, Mengmeng

AU - Zhang, Zheng

AU - Sogabe, Tomah

AU - Hayase, Shuzi

AU - Okada, Yoshitaka

AU - Iikubo, Satoshi

AU - Shen, Qing

PY - 2023/9/21

Y1 - 2023/9/21

N2 - A deep understanding of the effect of the A-site cation cross-exchange on the hot-carrier relaxation dynamics in perovskite quantum dots (PQDs) has profound implications on the further development of disruptive photovoltaic technologies. In this study, the hot carrier cooling kinetics of pure FAPbI3 (FA+, CH(NH2)2+), MAPbI3 (MA+, CH3NH3++), CsPbI3 (Cs+, Cesium) and alloyed FA0.5MA0.5PbI3, FA0.5Cs0.5PbI3, and MA0.5Cs0.5PbI3 QDs are investigated using ultrafast transient absorption (TA) spectroscopy. The lifetimes of the initial fast cooling stage (<1 ps) of all the organic cation-containing PQDs are shorter than those of the CsPbI3 QDs, as verified by the electron-phonon coupling strength extracted from the temperature-dependent photoluminescence spectra. The lifetimes of the slow cooling stage of the alloyed PQDs are longer under illumination greater than 1 sun, which is ascribed to the introduction of co-vibrational optical phonon modes in the alloyed PQDs. This facilitated efficient acoustic phonon upconversion and enhanced the hot-phonon bottleneck effect, as demonstrated by first-principles calculations.

AB - A deep understanding of the effect of the A-site cation cross-exchange on the hot-carrier relaxation dynamics in perovskite quantum dots (PQDs) has profound implications on the further development of disruptive photovoltaic technologies. In this study, the hot carrier cooling kinetics of pure FAPbI3 (FA+, CH(NH2)2+), MAPbI3 (MA+, CH3NH3++), CsPbI3 (Cs+, Cesium) and alloyed FA0.5MA0.5PbI3, FA0.5Cs0.5PbI3, and MA0.5Cs0.5PbI3 QDs are investigated using ultrafast transient absorption (TA) spectroscopy. The lifetimes of the initial fast cooling stage (<1 ps) of all the organic cation-containing PQDs are shorter than those of the CsPbI3 QDs, as verified by the electron-phonon coupling strength extracted from the temperature-dependent photoluminescence spectra. The lifetimes of the slow cooling stage of the alloyed PQDs are longer under illumination greater than 1 sun, which is ascribed to the introduction of co-vibrational optical phonon modes in the alloyed PQDs. This facilitated efficient acoustic phonon upconversion and enhanced the hot-phonon bottleneck effect, as demonstrated by first-principles calculations.

KW - A-site cation cross-exchange

KW - electron-phonon coupling

KW - hot carrier

KW - hot-phonon bottleneck effect

KW - perovskites

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SN - 0935-9648

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JO - Advanced Materials

JF - Advanced Materials

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M1 - 2301834

ER -

Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots with Alloyed A-Site

Abstract

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