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Schwan J, Wang K, Tang ML, Mangolini L. Gas-phase grafting for the multifunctional surface modification of silicon quantum dots. NANOSCALE 2022; 14:17385-17391. [PMID: 36382630 DOI: 10.1039/d2nr04902c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Photon upconversion in systems incorporating inorganic quantum dots (QDs) is of great interest for applications in solar energy conversion, bioimaging, and photodynamic therapy. Achieving high up-conversion efficiency requires not only high-quality inorganic nanoparticles, but also precise control of their surface functional groups. Gas-phase surface functionalization provides a new pathway towards controlling the surface of small inorganic nanoparticles. In this contribution, we utilize a one-step low-temperature plasma technique for the synthesis and in-flight partial functionalization of silicon QDs with alkyl chains. The partially functionalized surface is then modified further with 9-vinylanthracene via thermal hydrosilylation resulting in the grafting of 9-ethylanthracene (9EA) groups. We have found that the minimum alkyl ligand density necessary for quantum dot solubility also gives the maximum upconversion quantum yield, reaching 17% for silicon QDs with Si-dodecyl chains and an average of 3 9EA molecules per particle.
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Affiliation(s)
- Joseph Schwan
- Department of Mechanical Engineering, University of California - Riverside, Riverside, California 92521, USA
| | - Kefu Wang
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, USA.
| | - Ming Lee Tang
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, USA
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, USA.
| | - Lorenzo Mangolini
- Department of Mechanical Engineering, University of California - Riverside, Riverside, California 92521, USA
- Materials Science and Engineering Program, University of California - Riverside, Riverside, California 92521, USA.
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Ma T, Zhai X, Jin M, Huang Y, Zhang M, Pan H, Zhao X, Du Y. Multifunctional wound dressing for highly efficient treatment of chronic diabetic wounds. VIEW 2022. [DOI: 10.1002/viw.20220045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Tengfei Ma
- Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin China
| | - Xinyun Zhai
- Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin China
| | - Mengdie Jin
- Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin China
| | | | | | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration Institute of Biomedicine and Biotechnology Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Xiaoli Zhao
- Research Center for Human Tissue and Organs Degeneration Institute of Biomedicine and Biotechnology Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China
| | - Yaping Du
- Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering National Institute for Advanced Materials Nankai University Tianjin China
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Xiao X, Sun Q, Hu T, Song Y, Zhou X, Zheng K, Sheng Y, Shi Z, Zou H. Multifunctional CaF 2: Yb 3+, Ho 3+, Gd 3+ Nanocrystals: Insight into Crystal Growth and Properties of Upconversion Luminescence, Magnetic, and Temperature Sensing Properties. Inorg Chem 2022; 61:14934-14946. [DOI: 10.1021/acs.inorgchem.2c00690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xue Xiao
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Qi Sun
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Tingwei Hu
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Yanhua Song
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Xiuqing Zhou
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Keyan Zheng
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Ye Sheng
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
| | - Haifeng Zou
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, P.R. China
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Upadhyay MM, Kumar K. Gd3+ ion induced UV upconversion emission and temperature sensing in Tm3+/Yb3+:Y2O3 phosphor. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Patel M, Meenu M, Pandey JK, Kumar P, Patel R. Recent development in upconversion nanoparticles and their application in optogenetics: A review. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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