Strong optical response and light emission from a monolayer molecular crystal

Huijuan Zhao; Yingbo Zhao; Yinxuan Song; Ming Zhou; Wei Lv; Liu Tao; Yuzhang Feng; Biying Song; Yue Ma; Junqing Zhang; Jun Xiao; Ying Wang; Der Hsien Lien; Matin Amani; Hyungjin Kim; Xiaoqing Chen; Zhangting Wu; Zhenhua Ni; Peng Wang; Yi Shi; Haibo Ma; Xiang Zhang; Jian Bin Xu; Alessandro Troisi; Ali Javey; Xinran Wang

doi:10.1038/s41467-019-13581-9

Strong optical response and light emission from a monolayer molecular crystal

Huijuan Zhao, Yingbo Zhao, Yinxuan Song, Ming Zhou, Wei Lv, Liu Tao, Yuzhang Feng, Biying Song, Yue Ma, Junqing Zhang, Jun Xiao, Ying Wang, Der Hsien Lien, Matin Amani, Hyungjin Kim, Xiaoqing Chen, Zhangting Wu, Zhenhua Ni, Peng Wang, Yi ShiHaibo Ma, Xiang Zhang, Jian Bin Xu, Alessandro Troisi, Ali Javey, Xinran Wang^*

^*此作品的通信作者

電子研究所

研究成果: Article › 同行評審

70 引文斯高帕斯（Scopus）

摘要

Excitons in two-dimensional (2D) materials are tightly bound and exhibit rich physics. So far, the optical excitations in 2D semiconductors are dominated by Wannier-Mott excitons, but molecular systems can host Frenkel excitons (FE) with unique properties. Here, we report a strong optical response in a class of monolayer molecular J-aggregates. The exciton exhibits giant oscillator strength and absorption (over 30% for monolayer) at resonance, as well as photoluminescence quantum yield in the range of 60–100%. We observe evidence of superradiance (including increased oscillator strength, bathochromic shift, reduced linewidth and lifetime) at room-temperature and more progressively towards low temperature. These unique properties only exist in monolayer owing to the large unscreened dipole interactions and suppression of charge-transfer processes. Finally, we demonstrate light-emitting devices with the monolayer J-aggregate. The intrinsic device speed could be beyond 30 GHz, which is promising for next-generation ultrafast on-chip optical communications.

原文	English
文章編號	5589
期刊	Nature Communications
卷	10
發行號	1
DOIs	https://doi.org/10.1038/s41467-019-13581-9
出版狀態	Published - 1 12月 2019

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Zhao, H., Zhao, Y., Song, Y., Zhou, M., Lv, W., Tao, L., Feng, Y., Song, B., Ma, Y., Zhang, J., Xiao, J., Wang, Y., Lien, D. H., Amani, M., Kim, H., Chen, X., Wu, Z., Ni, Z., Wang, P., ... Wang, X. (2019). Strong optical response and light emission from a monolayer molecular crystal. Nature Communications, 10(1), 文章 5589. https://doi.org/10.1038/s41467-019-13581-9

@article{9ad44eeec2024f83b901c4ef8b7da5e7,

title = "Strong optical response and light emission from a monolayer molecular crystal",

abstract = "Excitons in two-dimensional (2D) materials are tightly bound and exhibit rich physics. So far, the optical excitations in 2D semiconductors are dominated by Wannier-Mott excitons, but molecular systems can host Frenkel excitons (FE) with unique properties. Here, we report a strong optical response in a class of monolayer molecular J-aggregates. The exciton exhibits giant oscillator strength and absorption (over 30% for monolayer) at resonance, as well as photoluminescence quantum yield in the range of 60–100%. We observe evidence of superradiance (including increased oscillator strength, bathochromic shift, reduced linewidth and lifetime) at room-temperature and more progressively towards low temperature. These unique properties only exist in monolayer owing to the large unscreened dipole interactions and suppression of charge-transfer processes. Finally, we demonstrate light-emitting devices with the monolayer J-aggregate. The intrinsic device speed could be beyond 30 GHz, which is promising for next-generation ultrafast on-chip optical communications.",

author = "Huijuan Zhao and Yingbo Zhao and Yinxuan Song and Ming Zhou and Wei Lv and Liu Tao and Yuzhang Feng and Biying Song and Yue Ma and Junqing Zhang and Jun Xiao and Ying Wang and Lien, {Der Hsien} and Matin Amani and Hyungjin Kim and Xiaoqing Chen and Zhangting Wu and Zhenhua Ni and Peng Wang and Yi Shi and Haibo Ma and Xiang Zhang and Xu, {Jian Bin} and Alessandro Troisi and Ali Javey and Xinran Wang",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = dec,

day = "1",

doi = "10.1038/s41467-019-13581-9",

language = "English",

volume = "10",

journal = "Nature Communications",

issn = "2041-1723",

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number = "1",

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Zhao, H, Zhao, Y, Song, Y, Zhou, M, Lv, W, Tao, L, Feng, Y, Song, B, Ma, Y, Zhang, J, Xiao, J, Wang, Y, Lien, DH, Amani, M, Kim, H, Chen, X, Wu, Z, Ni, Z, Wang, P, Shi, Y, Ma, H, Zhang, X, Xu, JB, Troisi, A, Javey, A & Wang, X 2019, 'Strong optical response and light emission from a monolayer molecular crystal', Nature Communications, 卷 10, 編號 1, 5589. https://doi.org/10.1038/s41467-019-13581-9

TY - JOUR

T1 - Strong optical response and light emission from a monolayer molecular crystal

AU - Zhao, Huijuan

AU - Zhao, Yingbo

AU - Song, Yinxuan

AU - Zhou, Ming

AU - Lv, Wei

AU - Tao, Liu

AU - Feng, Yuzhang

AU - Song, Biying

AU - Ma, Yue

AU - Zhang, Junqing

AU - Xiao, Jun

AU - Wang, Ying

AU - Lien, Der Hsien

AU - Amani, Matin

AU - Kim, Hyungjin

AU - Chen, Xiaoqing

AU - Wu, Zhangting

AU - Ni, Zhenhua

AU - Wang, Peng

AU - Shi, Yi

AU - Ma, Haibo

AU - Zhang, Xiang

AU - Xu, Jian Bin

AU - Troisi, Alessandro

AU - Javey, Ali

AU - Wang, Xinran

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Excitons in two-dimensional (2D) materials are tightly bound and exhibit rich physics. So far, the optical excitations in 2D semiconductors are dominated by Wannier-Mott excitons, but molecular systems can host Frenkel excitons (FE) with unique properties. Here, we report a strong optical response in a class of monolayer molecular J-aggregates. The exciton exhibits giant oscillator strength and absorption (over 30% for monolayer) at resonance, as well as photoluminescence quantum yield in the range of 60–100%. We observe evidence of superradiance (including increased oscillator strength, bathochromic shift, reduced linewidth and lifetime) at room-temperature and more progressively towards low temperature. These unique properties only exist in monolayer owing to the large unscreened dipole interactions and suppression of charge-transfer processes. Finally, we demonstrate light-emitting devices with the monolayer J-aggregate. The intrinsic device speed could be beyond 30 GHz, which is promising for next-generation ultrafast on-chip optical communications.

AB - Excitons in two-dimensional (2D) materials are tightly bound and exhibit rich physics. So far, the optical excitations in 2D semiconductors are dominated by Wannier-Mott excitons, but molecular systems can host Frenkel excitons (FE) with unique properties. Here, we report a strong optical response in a class of monolayer molecular J-aggregates. The exciton exhibits giant oscillator strength and absorption (over 30% for monolayer) at resonance, as well as photoluminescence quantum yield in the range of 60–100%. We observe evidence of superradiance (including increased oscillator strength, bathochromic shift, reduced linewidth and lifetime) at room-temperature and more progressively towards low temperature. These unique properties only exist in monolayer owing to the large unscreened dipole interactions and suppression of charge-transfer processes. Finally, we demonstrate light-emitting devices with the monolayer J-aggregate. The intrinsic device speed could be beyond 30 GHz, which is promising for next-generation ultrafast on-chip optical communications.

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U2 - 10.1038/s41467-019-13581-9

DO - 10.1038/s41467-019-13581-9

M3 - Article

C2 - 31811122

AN - SCOPUS:85076263989

SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 5589

ER -

Strong optical response and light emission from a monolayer molecular crystal

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