A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation
Carbon nanodots (CDs) have received huge attention of researchers due to their good optical properties. However, CDs generally suffer from severely fluorescence self-quenching once they are aggregated or in solid state, limitating their applications in light-emitting devices. In this work, we report...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Materials Today Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590049823000887 |
| _version_ | 1797435754098458624 |
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| author | Xiao Gong Wenjing Li Yongzhong Wu Xiaoyan Li Yan Ma Hangxiang Wang Min Wu |
| author_facet | Xiao Gong Wenjing Li Yongzhong Wu Xiaoyan Li Yan Ma Hangxiang Wang Min Wu |
| author_sort | Xiao Gong |
| collection | DOAJ |
| description | Carbon nanodots (CDs) have received huge attention of researchers due to their good optical properties. However, CDs generally suffer from severely fluorescence self-quenching once they are aggregated or in solid state, limitating their applications in light-emitting devices. In this work, we report a rational strategy for synthesis of yellow fluorescent carbon nanodots (Y-CDs)-based microparticles with a high solid-state photoluminescence quantum yield (32.02%). It is the first report on designing a lamellar structured matrix to disperse CDs to realize long-wavelength solid fluorescence. The matrix is confirmed as p-phenylenediamine dihydrochloride by X-ray diffraction (XRD). 3-glycidyloxypropyltrimethoxysilane (KH-560) acts as a bridge to connect CDs to the matrix based on epoxy-amine reaction and silane hydrolysis condensation for uniform dispersion of CDs and high solid-state luminescence can be easily achieved. Meanwhile, through adjusting the amount of KH-560, the morphology of Y-CDs-based microparticles can be controlled from cube to layered structure and the fluorescence intensity can be significantly improved. Importantly, the optimal Y-CDs particles can be combined with blue chips (450 nm) to fabricate high-performance white light-emitting diodes (WLEDs) without using commercial phosphor, and the constructed WLEDs exhibit a high color rendering index (CRI) of 84.2. |
| first_indexed | 2024-03-09T10:52:49Z |
| format | Article |
| id | doaj.art-cf557280557c4d099f99542e79b67592 |
| institution | Directory Open Access Journal |
| issn | 2590-0498 |
| language | English |
| last_indexed | 2024-03-09T10:52:49Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Advances |
| spelling | doaj.art-cf557280557c4d099f99542e79b675922023-12-01T05:02:53ZengElsevierMaterials Today Advances2590-04982023-12-0120100428A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulationXiao Gong0Wenjing Li1Yongzhong Wu2Xiaoyan Li3Yan Ma4Hangxiang Wang5Min Wu6Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, PR China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, PR China; Corresponding author. Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, PR China.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, PR ChinaSchool of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 215009, PR ChinaThe First Affiliated Hospital, Zhejiang University School of Medicine, NHC Key Laboratory of Combined Multi-Organ Transplantation, Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Zhejiang Province, Hangzhou, PR ChinaThe First Affiliated Hospital, Zhejiang University School of Medicine, NHC Key Laboratory of Combined Multi-Organ Transplantation, Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Zhejiang Province, Hangzhou, PR ChinaThe First Affiliated Hospital, Zhejiang University School of Medicine, NHC Key Laboratory of Combined Multi-Organ Transplantation, Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Zhejiang Province, Hangzhou, PR ChinaDepartment of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, PR China; Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, PR China; Corresponding author. Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, PR China.Carbon nanodots (CDs) have received huge attention of researchers due to their good optical properties. However, CDs generally suffer from severely fluorescence self-quenching once they are aggregated or in solid state, limitating their applications in light-emitting devices. In this work, we report a rational strategy for synthesis of yellow fluorescent carbon nanodots (Y-CDs)-based microparticles with a high solid-state photoluminescence quantum yield (32.02%). It is the first report on designing a lamellar structured matrix to disperse CDs to realize long-wavelength solid fluorescence. The matrix is confirmed as p-phenylenediamine dihydrochloride by X-ray diffraction (XRD). 3-glycidyloxypropyltrimethoxysilane (KH-560) acts as a bridge to connect CDs to the matrix based on epoxy-amine reaction and silane hydrolysis condensation for uniform dispersion of CDs and high solid-state luminescence can be easily achieved. Meanwhile, through adjusting the amount of KH-560, the morphology of Y-CDs-based microparticles can be controlled from cube to layered structure and the fluorescence intensity can be significantly improved. Importantly, the optimal Y-CDs particles can be combined with blue chips (450 nm) to fabricate high-performance white light-emitting diodes (WLEDs) without using commercial phosphor, and the constructed WLEDs exhibit a high color rendering index (CRI) of 84.2.http://www.sciencedirect.com/science/article/pii/S2590049823000887Carbon nanodot compositeLamellar structureEpoxy-amine reactionOptoelectronic applicationsSolid-state fluorescence |
| spellingShingle | Xiao Gong Wenjing Li Yongzhong Wu Xiaoyan Li Yan Ma Hangxiang Wang Min Wu A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation Materials Today Advances Carbon nanodot composite Lamellar structure Epoxy-amine reaction Optoelectronic applications Solid-state fluorescence |
| title | A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation |
| title_full | A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation |
| title_fullStr | A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation |
| title_full_unstemmed | A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation |
| title_short | A rational strategy for directly synthesizing strongly yellow solid-state fluorescent-emitting carbon nanodots composite microparticles by structure regulation |
| title_sort | rational strategy for directly synthesizing strongly yellow solid state fluorescent emitting carbon nanodots composite microparticles by structure regulation |
| topic | Carbon nanodot composite Lamellar structure Epoxy-amine reaction Optoelectronic applications Solid-state fluorescence |
| url | http://www.sciencedirect.com/science/article/pii/S2590049823000887 |
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