Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr3 Quantum Dots Using a High-Q Microdisk Cavity

Yu Yuan; Chenjiang Qian; Shipei Sun; Yuechen Lei; Jingnan Yang; Longlong Yang; Bowen Fu; Sai Yan; Rui Zhu; Hancong Li; Xiqing Chen; Zhanchun Zuo; Bei Bei Li; Yun Feng Xiao; Haizheng Zhong; Can Wang; Kuijuan Jin; Qihuang Gong; Xiulai Xu

doi:10.1021/acs.jpclett.4c03615

Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr₃ Quantum Dots Using a High-Q Microdisk Cavity

Yu Yuan, Chenjiang Qian, Shipei Sun, Yuechen Lei, Jingnan Yang, Longlong Yang, Bowen Fu, Sai Yan, Rui Zhu, Hancong Li, Xiqing Chen, Zhanchun Zuo, Bei Bei Li, Yun Feng Xiao, Haizheng Zhong, Can Wang^*, Kuijuan Jin, Qihuang Gong, Xiulai Xu^*

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

Perovskite quantum dots (QDs) are high-efficiency optoelectronic materials attracting great interest, but further improvement in the luminescence efficiency is crucial for their application. In this work, we enhance both the spontaneous emission rate and the photoluminescence (PL) intensity of CsPbBr₃ QDs by coupling them to a high quality (Q) factor SiO₂ microdisk cavity. Compared to conventional metal plasmonic cavities, the dielectric cavity structure suppresses the effects of quenching and energy transfer, which could introduce complex fluctuations and nonradiative decays. As such, we obtain a 5.9-fold enhancement of the PL intensity and a 5.6-fold enhancement of the emission rate. Moreover, the different enhancement behaviors for phonon sidebands allow us to further explore the different components in the broad emission peak of ensembled QDs. These results demonstrate the great potential of microdisk cavities in enhancing the luminescence in optoelectronic devices and exploring the exciton-photophysics of perovskite QDs.

Original language	English
Pages (from-to)	1095-1102
Number of pages	8
Journal	Journal of Physical Chemistry Letters
Volume	16
Issue number	4
DOIs	http://doi.org/10.1021/acs.jpclett.4c03615
Publication status	Published - 30 Jan 2025
Externally published	Yes

Access to Document

10.1021/acs.jpclett.4c03615

Cite this

Yuan, Y., Qian, C., Sun, S., Lei, Y., Yang, J., Yang, L., Fu, B., Yan, S., Zhu, R., Li, H., Chen, X., Zuo, Z., Li, B. B., Xiao, Y. F., Zhong, H., Wang, C., Jin, K., Gong, Q., & Xu, X. (2025). Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr₃ Quantum Dots Using a High-Q Microdisk Cavity. Journal of Physical Chemistry Letters, 16(4), 1095-1102. http://doi.org/10.1021/acs.jpclett.4c03615

@article{e3442b23efdb4edeb8506ae709175b93,

title = "Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr3 Quantum Dots Using a High-Q Microdisk Cavity",

abstract = "Perovskite quantum dots (QDs) are high-efficiency optoelectronic materials attracting great interest, but further improvement in the luminescence efficiency is crucial for their application. In this work, we enhance both the spontaneous emission rate and the photoluminescence (PL) intensity of CsPbBr3 QDs by coupling them to a high quality (Q) factor SiO2 microdisk cavity. Compared to conventional metal plasmonic cavities, the dielectric cavity structure suppresses the effects of quenching and energy transfer, which could introduce complex fluctuations and nonradiative decays. As such, we obtain a 5.9-fold enhancement of the PL intensity and a 5.6-fold enhancement of the emission rate. Moreover, the different enhancement behaviors for phonon sidebands allow us to further explore the different components in the broad emission peak of ensembled QDs. These results demonstrate the great potential of microdisk cavities in enhancing the luminescence in optoelectronic devices and exploring the exciton-photophysics of perovskite QDs.",

author = "Yu Yuan and Chenjiang Qian and Shipei Sun and Yuechen Lei and Jingnan Yang and Longlong Yang and Bowen Fu and Sai Yan and Rui Zhu and Hancong Li and Xiqing Chen and Zhanchun Zuo and Li, \{Bei Bei\} and Xiao, \{Yun Feng\} and Haizheng Zhong and Can Wang and Kuijuan Jin and Qihuang Gong and Xiulai Xu",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society.",

year = "2025",

month = jan,

day = "30",

doi = "10.1021/acs.jpclett.4c03615",

language = "English",

volume = "16",

pages = "1095--1102",

journal = "Journal of Physical Chemistry Letters",

issn = "1948-7185",

publisher = "American Chemical Society",

number = "4",

}

Yuan, Y, Qian, C, Sun, S, Lei, Y, Yang, J, Yang, L, Fu, B, Yan, S, Zhu, R, Li, H, Chen, X, Zuo, Z, Li, BB, Xiao, YF, Zhong, H, Wang, C, Jin, K, Gong, Q & Xu, X 2025, 'Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr₃ Quantum Dots Using a High-Q Microdisk Cavity', Journal of Physical Chemistry Letters, vol. 16, no. 4, pp. 1095-1102. http://doi.org/10.1021/acs.jpclett.4c03615

TY - JOUR

T1 - Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr3 Quantum Dots Using a High-Q Microdisk Cavity

AU - Yuan, Yu

AU - Qian, Chenjiang

AU - Sun, Shipei

AU - Lei, Yuechen

AU - Yang, Jingnan

AU - Yang, Longlong

AU - Fu, Bowen

AU - Yan, Sai

AU - Zhu, Rui

AU - Li, Hancong

AU - Chen, Xiqing

AU - Zuo, Zhanchun

AU - Li, Bei Bei

AU - Xiao, Yun Feng

AU - Zhong, Haizheng

AU - Wang, Can

AU - Jin, Kuijuan

AU - Gong, Qihuang

AU - Xu, Xiulai

PY - 2025/1/30

Y1 - 2025/1/30

N2 - Perovskite quantum dots (QDs) are high-efficiency optoelectronic materials attracting great interest, but further improvement in the luminescence efficiency is crucial for their application. In this work, we enhance both the spontaneous emission rate and the photoluminescence (PL) intensity of CsPbBr3 QDs by coupling them to a high quality (Q) factor SiO2 microdisk cavity. Compared to conventional metal plasmonic cavities, the dielectric cavity structure suppresses the effects of quenching and energy transfer, which could introduce complex fluctuations and nonradiative decays. As such, we obtain a 5.9-fold enhancement of the PL intensity and a 5.6-fold enhancement of the emission rate. Moreover, the different enhancement behaviors for phonon sidebands allow us to further explore the different components in the broad emission peak of ensembled QDs. These results demonstrate the great potential of microdisk cavities in enhancing the luminescence in optoelectronic devices and exploring the exciton-photophysics of perovskite QDs.

AB - Perovskite quantum dots (QDs) are high-efficiency optoelectronic materials attracting great interest, but further improvement in the luminescence efficiency is crucial for their application. In this work, we enhance both the spontaneous emission rate and the photoluminescence (PL) intensity of CsPbBr3 QDs by coupling them to a high quality (Q) factor SiO2 microdisk cavity. Compared to conventional metal plasmonic cavities, the dielectric cavity structure suppresses the effects of quenching and energy transfer, which could introduce complex fluctuations and nonradiative decays. As such, we obtain a 5.9-fold enhancement of the PL intensity and a 5.6-fold enhancement of the emission rate. Moreover, the different enhancement behaviors for phonon sidebands allow us to further explore the different components in the broad emission peak of ensembled QDs. These results demonstrate the great potential of microdisk cavities in enhancing the luminescence in optoelectronic devices and exploring the exciton-photophysics of perovskite QDs.

UR - http://www.scopus.com/pages/publications/85216929458

U2 - 10.1021/acs.jpclett.4c03615

DO - 10.1021/acs.jpclett.4c03615

M3 - Article

C2 - 39844533

AN - SCOPUS:85216929458

SN - 1948-7185

VL - 16

SP - 1095

EP - 1102

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 4

ER -

Enhanced Spontaneous Emission Rate and Luminescence Intensity of CsPbBr₃ Quantum Dots Using a High-Q Microdisk Cavity

Abstract

Access to Document

Other files and links

Fingerprint

Cite this