Stable Luminous Nanocomposites of Confined Mn2+-Doped Lead Halide Perovskite Nanocrystals in Mesoporous Silica Nanospheres as Orange Fluorophores
Abstract
Creating highly stable inorganic perovskite nanocrystals (CsPbX3, where X = Cl, Br, and I) with excellent optical performance is challenging because their optical properties depend on their ionic structure and its inherent defects. Here, we present a facile and effective synthesis using a nanoconfinement strategy to grow Mn2+-doped CsPbCl3 nanocrystals embedded in dendritic mesoporous silica nanospheres (MSNs). The resulting nanocomposite is abbreviated as Cs(Pbx/Mn1-x)Cl3@MSNs and can serve as the orange emitter for white light-emitting diodes (WLEDs). The MSN matrix was prepared via a templated sol-gel technique as monodispersed center-radial dendritic porous particles, with a diamater of ~105 nm and an inner pore size of ~13 nm. The MSN was then utilized as the matrix to initiate the growth of Mn-doped perovskite nanocrystals (NCs). The NCs in the resulting composite have an average diameter of 8 nm and a photoluminescence quantum yield of >30%. In addition, the optical properties of the Cs(Pbx/Mn1-x)Cl3@MSNs can be tuned by varying the Mn2+ doping level. The resulting composites presented a significantly improved resistance to ultraviolet (UV) light, temperature, and moisture compared to that of bare Cs(Pb0.72/Mn0.28)Cl3. Finally, we fabricated down-converting WLEDs by using Cs(Pbx/Mn1-x)Cl3@MSNs as the orange-emitting phosphor deposited onto UV-emitting chips, demonstrating their promisingmore »
- Authors:
-
- Xi'an Jiaotong Univ., Xi'an (China)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Xi'an Jiaotong Univ., Xi'an (China); Shenyang Univ. of Chemical Technology, Shenyang (China)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1503663
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Inorganic Chemistry
- Additional Journal Information:
- Journal Volume: 58; Journal Issue: 6; Journal ID: ISSN 0020-1669
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Pan, Aizhao, Wu, Youshen, Yan, Ke, Yu, Yun, Jurow, Matthew J., Ren, Baoyi, Zhang, Cong, Ding, Shujiang, He, Ling, and Liu, Yi. Stable Luminous Nanocomposites of Confined Mn2+-Doped Lead Halide Perovskite Nanocrystals in Mesoporous Silica Nanospheres as Orange Fluorophores. United States: N. p., 2019.
Web. doi:10.1021/acs.inorgchem.9b00010.
Pan, Aizhao, Wu, Youshen, Yan, Ke, Yu, Yun, Jurow, Matthew J., Ren, Baoyi, Zhang, Cong, Ding, Shujiang, He, Ling, & Liu, Yi. Stable Luminous Nanocomposites of Confined Mn2+-Doped Lead Halide Perovskite Nanocrystals in Mesoporous Silica Nanospheres as Orange Fluorophores. United States. https://doi.org/10.1021/acs.inorgchem.9b00010
Pan, Aizhao, Wu, Youshen, Yan, Ke, Yu, Yun, Jurow, Matthew J., Ren, Baoyi, Zhang, Cong, Ding, Shujiang, He, Ling, and Liu, Yi. 2019.
"Stable Luminous Nanocomposites of Confined Mn2+-Doped Lead Halide Perovskite Nanocrystals in Mesoporous Silica Nanospheres as Orange Fluorophores". United States. https://doi.org/10.1021/acs.inorgchem.9b00010. https://www.osti.gov/servlets/purl/1503663.
@article{osti_1503663,
title = {Stable Luminous Nanocomposites of Confined Mn2+-Doped Lead Halide Perovskite Nanocrystals in Mesoporous Silica Nanospheres as Orange Fluorophores},
author = {Pan, Aizhao and Wu, Youshen and Yan, Ke and Yu, Yun and Jurow, Matthew J. and Ren, Baoyi and Zhang, Cong and Ding, Shujiang and He, Ling and Liu, Yi},
abstractNote = {Creating highly stable inorganic perovskite nanocrystals (CsPbX3, where X = Cl, Br, and I) with excellent optical performance is challenging because their optical properties depend on their ionic structure and its inherent defects. Here, we present a facile and effective synthesis using a nanoconfinement strategy to grow Mn2+-doped CsPbCl3 nanocrystals embedded in dendritic mesoporous silica nanospheres (MSNs). The resulting nanocomposite is abbreviated as Cs(Pbx/Mn1-x)Cl3@MSNs and can serve as the orange emitter for white light-emitting diodes (WLEDs). The MSN matrix was prepared via a templated sol-gel technique as monodispersed center-radial dendritic porous particles, with a diamater of ~105 nm and an inner pore size of ~13 nm. The MSN was then utilized as the matrix to initiate the growth of Mn-doped perovskite nanocrystals (NCs). The NCs in the resulting composite have an average diameter of 8 nm and a photoluminescence quantum yield of >30%. In addition, the optical properties of the Cs(Pbx/Mn1-x)Cl3@MSNs can be tuned by varying the Mn2+ doping level. The resulting composites presented a significantly improved resistance to ultraviolet (UV) light, temperature, and moisture compared to that of bare Cs(Pb0.72/Mn0.28)Cl3. Finally, we fabricated down-converting WLEDs by using Cs(Pbx/Mn1-x)Cl3@MSNs as the orange-emitting phosphor deposited onto UV-emitting chips, demonstrating their promising applications in solid-state lighting. Furthermore this work provides a valuable approach to fabricating stable orange luminophores as replacements for traditional emitters in light-emitting diode devices.},
doi = {10.1021/acs.inorgchem.9b00010},
url = {https://www.osti.gov/biblio/1503663},
journal = {Inorganic Chemistry},
issn = {0020-1669},
number = 6,
volume = 58,
place = {United States},
year = {Mon Mar 04 00:00:00 EST 2019},
month = {Mon Mar 04 00:00:00 EST 2019}
}
Web of Science
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