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Title: Highly Stable Luminous “Snakes” from CsPbX 3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires

Abstract

CsPbX 3 (X = Cl, Br, and I) perovskite nanocrystals (NCs) are known for their exceptional optoelectronic properties, yet the material's instability toward polar solvents, heat, or UV irradiation greatly limits its further applications. Herein, an efficient in situ growing strategy has been developed to give highly stable perovskite NC composites (abbreviated CsPbX 3@CA-SiO 2) by anchoring CsPbX 3 NCs onto silica nanowires (NWs), which effectively depresses the optical degradation of their photoluminescence (PL) and enhances stability. The preparation of surface-functionalized serpentine silica NWs is realized by a sol-gel process involving hydrolysis of a mixture of tetraethyl orthosilicate (TEOS), 3-aminopropyltriethoxysilane (APTES), and trimethoxy(octadecyl)silane (TMODS) in a water/oil emulsion. The serpentine NWs are formed via an anisotropic growth with lengths up to 8 μm. The free amino groups are employed as surface ligands for growing perovskite NCs, yielding distributed monodisperse NCs (~8 nm) around the NW matrix. The emission wavelength is tunable by simple variation of the halide compositions (CsPbX 3, X = Cl, Br, or I), and the composites demonstrate a high photoluminescence quantum yield (PLQY 32-69%). Additionally, we have demonstrated the composites CsPbX 3@CA-SiO 2 can be self-woven to form a porous 3D hierarchical NWs membrane, giving rise tomore » a superhydrophobic surface with hierarchical micro/nano structural features. The resulting composites exhibit high stability toward water, heat, and UV irradiation. Finally, this work elucidates an effective strategy to incorporate perovskite nanocrystals onto functional matrices as multifunctional stable light sources.« less

Authors:
ORCiD logo [1]; ORCiD logo [2];  [1];  [1];  [3];  [1];  [1]; ORCiD logo [2]
  1. Xi’an Jiaotong Univ. (China)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NNSFC); China Postdoctoral Science Foundation Funded Project; Fundamental Research Funds for the Central Universities; Shaanxi province Youth Foundation
OSTI Identifier:
1599795
Grant/Contract Number:  
AC02-05CH11231; 51802254; 51573145; 2017M623149; xjj2018053; 2018JQ5011
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Applied Nano Materials
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2574-0970
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; assembled hierarchical membrane; colloidal CsPbX3 nanocrystal; photostability; serpentine silica nanowires; superhydrophobic

Citation Formats

Pan, Aizhao, Jurow, Matthew J., Wu, Youshen, Jia, Mengjun, Zheng, Fuyin, Zhang, Yanfeng, He, Ling, and Liu, Yi. Highly Stable Luminous “Snakes” from CsPbX3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires. United States: N. p., 2018. Web. doi:10.1021/acsanm.8b01889.
Pan, Aizhao, Jurow, Matthew J., Wu, Youshen, Jia, Mengjun, Zheng, Fuyin, Zhang, Yanfeng, He, Ling, & Liu, Yi. Highly Stable Luminous “Snakes” from CsPbX3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires. United States. https://doi.org/10.1021/acsanm.8b01889
Pan, Aizhao, Jurow, Matthew J., Wu, Youshen, Jia, Mengjun, Zheng, Fuyin, Zhang, Yanfeng, He, Ling, and Liu, Yi. Tue . "Highly Stable Luminous “Snakes” from CsPbX3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires". United States. https://doi.org/10.1021/acsanm.8b01889. https://www.osti.gov/servlets/purl/1599795.
@article{osti_1599795,
title = {Highly Stable Luminous “Snakes” from CsPbX3 Perovskite Nanocrystals Anchored on Amine-Coated Silica Nanowires},
author = {Pan, Aizhao and Jurow, Matthew J. and Wu, Youshen and Jia, Mengjun and Zheng, Fuyin and Zhang, Yanfeng and He, Ling and Liu, Yi},
abstractNote = {CsPbX3 (X = Cl, Br, and I) perovskite nanocrystals (NCs) are known for their exceptional optoelectronic properties, yet the material's instability toward polar solvents, heat, or UV irradiation greatly limits its further applications. Herein, an efficient in situ growing strategy has been developed to give highly stable perovskite NC composites (abbreviated CsPbX3@CA-SiO2) by anchoring CsPbX3 NCs onto silica nanowires (NWs), which effectively depresses the optical degradation of their photoluminescence (PL) and enhances stability. The preparation of surface-functionalized serpentine silica NWs is realized by a sol-gel process involving hydrolysis of a mixture of tetraethyl orthosilicate (TEOS), 3-aminopropyltriethoxysilane (APTES), and trimethoxy(octadecyl)silane (TMODS) in a water/oil emulsion. The serpentine NWs are formed via an anisotropic growth with lengths up to 8 μm. The free amino groups are employed as surface ligands for growing perovskite NCs, yielding distributed monodisperse NCs (~8 nm) around the NW matrix. The emission wavelength is tunable by simple variation of the halide compositions (CsPbX3, X = Cl, Br, or I), and the composites demonstrate a high photoluminescence quantum yield (PLQY 32-69%). Additionally, we have demonstrated the composites CsPbX3@CA-SiO2 can be self-woven to form a porous 3D hierarchical NWs membrane, giving rise to a superhydrophobic surface with hierarchical micro/nano structural features. The resulting composites exhibit high stability toward water, heat, and UV irradiation. Finally, this work elucidates an effective strategy to incorporate perovskite nanocrystals onto functional matrices as multifunctional stable light sources.},
doi = {10.1021/acsanm.8b01889},
url = {https://www.osti.gov/biblio/1599795}, journal = {ACS Applied Nano Materials},
issn = {2574-0970},
number = 1,
volume = 2,
place = {United States},
year = {2018},
month = {12}
}

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