1
|
Wang S, Zhou W, Wei Z, Li H, Xiao Y. Solvent-tuned perovskite heterostructures enable visual linoleic acid assay and edible oil species discrimination via wavelength shift. Food Chem 2024; 449:139190. [PMID: 38579653 DOI: 10.1016/j.foodchem.2024.139190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/07/2024]
Abstract
Linoleic acid (LA) detection and edible oils discrimination are essential for food safety. Recently, CsPbBr3@SiO2 heterostructures have been widely applied in edible oil assays, while deep insights into solvent effects on their structure and performance are often overlooked. Based on the suitable polarity and viscosity of cyclohexane, we prepared CsPbBr3@SiO2 Janus nanoparticles (JNPs) with high stability in edible oil and fast halogen-exchange (FHE) efficiency with oleylammonium iodide (OLAI). LA is selectively oxidized by lipoxidase to yield hydroxylated derivative (oxLA) capable of reacting with OLAI, thereby bridging LA content to naked-eye fluorescence color changes through the anti-FHE reaction. The established method for LA in edible oils exhibited consistent results with GC-MS analysis (p > 0.05). Since the LA content difference between edible oils, we further utilized chemometrics to accurately distinguish (100%) the species of edible oils. Overall, such elaborated CsPbBr3@SiO2 JNPs enable a refreshing strategy for edible oil discrimination.
Collapse
Affiliation(s)
- Shuo Wang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Wenbin Zhou
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Zhongyu Wei
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Hang Li
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
| | - Yuxiu Xiao
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| |
Collapse
|
2
|
Ji Y, Wang S, Yang H, Lin D, Shih WY, Shih WH. Flexible, photoluminescent 0D Cs 4PbX 6 (X = Br, Br/I)-PMMA composite films for white LED via water-induced recrystallization. JOURNAL OF MATERIALS RESEARCH 2024; 39:1513-1524. [PMID: 38882212 PMCID: PMC11176228 DOI: 10.1557/s43578-024-01326-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 03/08/2024] [Indexed: 06/18/2024]
Abstract
3D CsPbX3 inorganic perovskite materials have attracted much attention in optoelectronic devices because of their strong absorbance, high photoluminescent quantum yield, tunable band gap, and narrow emission bandwidth. However, their practical usefulness is limited due to their poor stability in ambient conditions. Here, we created photoluminescent 0D Cs4PbX6 (X = Br, Br/I) suspensions in toluene by adding a small amount of water. The photoluminescent 0D Cs4PbX6 perovskite was mixed with polymethylmethacrylate (PMMA) forming 0D Cs4PbX6/PMMA composite films with higher PL, stability, transparency, and transmittance than that of the 3D CsPbX3/PMMA composite films prepared separately. Moreover, the PL intensity maintains 90% of the initial value after 30 days in water, showing excellent water stability. The flexible white-light LED device prepared by the composite films illustrated good luminescence performance with color rendering index 74.77, chromaticity coordinates (0.32, 0.33), and color temperature 6997 K. Graphical abstract
Collapse
Affiliation(s)
- Yuang Ji
- Shanghai Key Laboratory of Engineering Materials Application and Evaluation, Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, School of Energy and Materials, Shanghai Polytechnic University, Shanghai, 201209 China
| | - Shihai Wang
- Shanghai Key Laboratory of Engineering Materials Application and Evaluation, Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, School of Energy and Materials, Shanghai Polytechnic University, Shanghai, 201209 China
| | - Haohan Yang
- Shanghai Key Laboratory of Engineering Materials Application and Evaluation, Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, School of Energy and Materials, Shanghai Polytechnic University, Shanghai, 201209 China
| | - Donghai Lin
- Shanghai Key Laboratory of Engineering Materials Application and Evaluation, Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, School of Energy and Materials, Shanghai Polytechnic University, Shanghai, 201209 China
| | - Wan Y Shih
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, USA
| | - Wei-Heng Shih
- Department of Materials Science and Engineering, Drexel University, Philadelphia, USA
| |
Collapse
|
3
|
Jiang L, Qiu Y, Xiang L, Tang J. APTES and CTAB Synergistic Induce a Heterozygous CsPbBr 3/Cs 4PbBr 6 Perovskite Composite and its Application on the Sensitive Fluorescent Detection of Iodide ions. J Fluoresc 2024:10.1007/s10895-024-03623-x. [PMID: 38396149 DOI: 10.1007/s10895-024-03623-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Recently, all-inorganic halide perovskite quantum dots (IPQD) as a new fluorescent material with excellent fluorescence properties have attracted wide attention. However, their instability in polar solvents is the main factor hindering their application in analysis. Herein, a heterozygous perovskite (CsPbBr3/Cs4PbBr6) was simultaneously prepared and stabilized by a silylanization strategy using (3-aminopropyl)-triethoxysilane (APTES) and cetyltrimethyl ammonium bromide (CTAB) assisted precipitation encapsulation method. The synthesized CsPbBr3/Cs4PbBr6 emitted an independent fluorescence at 520 nm. The obtained CsPbBr3/Cs4PbBr6 exhibited good stability in ethanol/water mixtures. It was used as a fluorescent probe for sensitively detecting iodide ions (I-) by fluorescence quenching mechanism in the concentration range of 1 ~ 70.0 µM with the detection limit (LOD) of 0.83 µM (relative standard deviation (RSD) = 1.33%, n = 20). The simplicity and high selectivity of the proposed fluorescent analysis method were the prominent features. This work could be extended to the other target ion detection by a perovskite fluorescent quenching.
Collapse
Affiliation(s)
- Lingyu Jiang
- Department of Environmental and Energy Engineering, Anhui Jianzhu University, Ziyun Road 292, Hefei, 230601, China
| | - Yunyun Qiu
- Department of Environmental and Energy Engineering, Anhui Jianzhu University, Ziyun Road 292, Hefei, 230601, China
| | - Li Xiang
- Department of Environmental and Energy Engineering, Anhui Jianzhu University, Ziyun Road 292, Hefei, 230601, China
| | - Jianshe Tang
- Department of Environmental and Energy Engineering, Anhui Jianzhu University, Ziyun Road 292, Hefei, 230601, China.
- Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Hefei, 230601, China.
| |
Collapse
|
4
|
Li QF, Wang JT, Wang Z. Improving the stability of perovskite nanocrystals via SiO 2 coating and their applications. RSC Adv 2024; 14:1417-1430. [PMID: 38174228 PMCID: PMC10763656 DOI: 10.1039/d3ra07231b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
Lead halide perovskite nanocrystals (LHP NCs) with outstanding optical properties have been regarded as promising alternatives to traditional phosphors for lighting and next-generation display technology. However, the practical applications of LHP NCs are seriously hindered by their poor stability upon exposure to moisture, oxygen, light, and heat. Hence, various strategies have been proposed to solve this issue. In this review, we have focused our attention on improving the stability of LHP NCs via SiO2 coating because it has the advantages of simple operation, less toxicity, and easy repetition. SiO2 coating is classified into four types: (a) in situ hydrolytic coating, (b) mesoporous silica loading, (c) mediated anchoring, and (d) double coating. The potential applications of SiO2-coated LHP NCs in the field of optoelectronics, biology, and catalysis are presented to elucidate the reliability and availability of SiO2 coating. Finally, the future development and challenges in the preparation of SiO2-coated LHP NCs are analyzed in order to promote the commercialization process of LHP NC-related commodities.
Collapse
Affiliation(s)
- Qing-Feng Li
- Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 Henan China
| | - Jin-Tao Wang
- Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University Zhoukou 466001 Henan China
| | - Zhenling Wang
- College of Materials Engineering, Henan International Joint Laboratory of Rare Earth Composite Materials, Henan University of Engineering Xinzheng 451191 China
| |
Collapse
|
5
|
Collantes C, Teixeira W, González-Pedro V, Bañuls MJ, Quintero-Campos P, Morais S, Maquieira Á. Water-assisted synthesis of stable and multicolored CsPbX 3@SiO 2 core-shell nanoparticles as fluorescent probes for biosensing. Dalton Trans 2023; 52:18464-18472. [PMID: 38013493 DOI: 10.1039/d3dt02593d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Colloidal lead halide perovskite nanocrystals are highly luminescent materials with great promise as fluorescent probes in biosensing as long as their intrinsic instability in aqueous media is effectively addressed. In this study, we successfully prepared stable and multicolored CsPbX3@SiO2 (X = Cl/Br, Br and I) core-shell nanoparticles through a simple method based on the water-induced transformation of Cs4PbX6 into CsPbX3, combined with sol-gel procedures. We observed that the concentration of the Cs4PbX6 precursor plays a crucial role in the formation of isolated nanospheres with uniform silica coating and in controlling the number of core-free particles. Furthermore, our research expands this approach to other halide compositions, resulting in multicolored core-shell nanoparticles with emission wavelengths ranging from 490 to 700 nm, average sizes below 30 nm, and photoluminescence quantum yields close to 60%. Unlike in previous reports, the silica coating boosts the photoluminescence quantum yields compared to uncoated counterparts and provides increased structural stability for more than four days. Moreover, a controlled thermal treatment confers water stability to the as-synthesized nanoparticles. To establish the feasibility of the developed materials as fluorescent probes, we successfully demonstrated their specific recognition of a humanized antibody (omalizumab) used in treating patients with severe allergic asthma. This work paves the way to develop in vitro tests using CsPbX3@SiO2 core-shell nanoparticles as fluorogenic probes.
Collapse
Affiliation(s)
- Cynthia Collantes
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - William Teixeira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - Victoria González-Pedro
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
| | - María-José Bañuls
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
| | - Pedro Quintero-Campos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - Sergi Morais
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
- Unidad Mixta UPV-La Fe, Nanomedicine and Sensors, IIS La Fe, Valencia, Spain
| | - Ángel Maquieira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
- Unidad Mixta UPV-La Fe, Nanomedicine and Sensors, IIS La Fe, Valencia, Spain
| |
Collapse
|
6
|
Marjit K, Francis AG, Pati SK, Patra A. Impacts of Exciton Binding Energy and Dielectric Confinement of Layered Lead Halide Perovskites on Carrier Relaxation and Exciton Phonon Interactions. J Phys Chem Lett 2023:10900-10909. [PMID: 38033173 DOI: 10.1021/acs.jpclett.3c02738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
This work highlights the significance of dielectric confinements and exciton binding energy of hybrid layered perovskites (LPs) in controlling the carrier relaxation dynamics of LPs for designing efficient optoelectronic devices. The polarizability of organic spacer cations in LPs modulates the carrier-phonon and carrier-carrier interactions, which eventually control the carrier relaxation dynamics. Here, we have varied the alkyl-ammonium chain length in the LPs to change the dielectric confinement, and the first-principles calculations reveal that the long-chain organic spacer experiences stronger dielectric confinement in comparison to short-chain organic spacer cation-based LPs. Transient absorption spectroscopic analysis suggests that the larger dielectric confinement and higher exciton binding energy exhibit faster carrier relaxation dynamics. The enhanced exciton-phonon interaction leads to faster carrier relaxation dynamics. The much softer phonon modes are responsible for the higher up-conversion of acoustic modes to optical modes, which leads to slower carrier relaxation dynamics in n-butylamine (BA) based LPs.
Collapse
Affiliation(s)
- Kritiman Marjit
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Anita Gemmy Francis
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Swapan K Pati
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
| |
Collapse
|
7
|
Zhang X, Yang P. CsPbX 3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11188-11212. [PMID: 37548228 DOI: 10.1021/acs.langmuir.3c01848] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Cesium lead halide (CsPbX3, X = Cl, Br, and I) perovskite nanocrystals (NCs) possess great potential in light-emitting diode applications because of their high brightness, low cost, tunable luminescence, and facile synthesis nature. However, these NCs are often disadvantaged by their instability in nonsolvent environment that hinders the practical applications of the material. In order to solve these issues, cesium lead halide NCs prepared using a solvent environment can be placed on substrates to retain the high stability and expand the applicability of the material. This Review focuses on the transfer of the all-inorganic cesium lead halide NCs (synthesized in solutions) onto matrix materials and their direct synthesis on these bases, including the inert shell growth (inorganic and organic shell), embedment in matrixes (e.g., metal organic frameworks, porous SiO2, glass, ZrO2, Al2O3, and AlOOH), and direct synthesis in substrates. In particular, the strategies for stability and PL property improvement of the materials are also summarized. The purpose of this Review is to provide inspiration for the encapsulation of cesium lead halide NCs with high brightness and stability in matrixes to expand the applicability of these materials in wide color gamut backlighting (e.g., white-light-emitting devices).
Collapse
Affiliation(s)
- Xiao Zhang
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Krakow 31-155, Poland
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| |
Collapse
|
8
|
Getachew G, Wibrianto A, Rasal AS, Batu Dirersa W, Chang JY. Metal halide perovskite nanocrystals for biomedical engineering: Recent advances, challenges, and future perspectives. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
9
|
Xu Y, Hu X, Tang H, Hu Q, Wang S, Chen T, Zhang X, Jiang W, Wang L, Jiang W. Highly efficient silica coated perovskite nanocrystals with the assistance of ionic liquids for warm white LEDs. NANOSCALE 2023; 15:631-643. [PMID: 36511857 DOI: 10.1039/d2nr05118d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Given the inherent characteristics of defect-tolerant, tunable emission performance, and high extinction coefficient, lead halide perovskite nanocrystals (NCs) have attracted widespread attention as a promising material in optoelectronic fields. However, their poor structural stability greatly impedes their practical applications. Herein, a novel strategy for synthesizing stable CsPbBr3@SiO2 NCs via the hydrolytic polycondensation of (3-aminopropyl)triethoxysilane (APTES) in the presence of ionic liquids (ILs) is deliberately designed. The problems of fluorescence quenching and undesirable agglomeration of NCs resulting from ligand loss and surface erosion existing in common encapsulation methods can be effectively resolved. The fast and controllable growth of the SiO2 shell around the CsPbBr3 NCs is realized owing to the high polarity and hygroscopicity of the IL. Moreover, the dual effects of the IL for passivating the surface defects and avoiding the structural degradation of NCs during the hydrolysis process of APTES are demonstrated. As a result, CsPbBr3@SiO2 NCs with a high photoluminescence quantum yield of 85.7% and excellent stability are realized. Furthermore, this method proves to be a versatile tool to obtain CsPbX3@SiO2 NCs with different halide compositions, realizing a broad tunable wavelength from 421.2 nm to 651.6 nm. A warm white LED with a high color rending index was assembled through packaging CsPbBr3@SiO2 NCs and Cu-In-Zn-S/ZnS/PVP composites on a commercial blue chip. These findings are expected to facilitate the development of perovskite NCs, which provides access to their optoelectronic applications.
Collapse
Affiliation(s)
- Yanqiao Xu
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute, Jingdezhen 333000, China.
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Xiaobo Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Huidong Tang
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Qing Hu
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Sanhai Wang
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Ting Chen
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute, Jingdezhen 333000, China.
| | - Xiaojun Zhang
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute, Jingdezhen 333000, China.
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Weihui Jiang
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute, Jingdezhen 333000, China.
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333000, China
| | - Lianjun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Wan Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| |
Collapse
|
10
|
Silica-coated CsPbBr3 nanocrystals with high stability for bright white-emitting displays. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
11
|
Zhou S, Xie B, Yang X, Zhang X, Luo X. Superior hydrophobic silica-coated quantum dot for stable optical performance in humid environments. NANOTECHNOLOGY 2022; 33:195202. [PMID: 35086083 DOI: 10.1088/1361-6528/ac4f81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Quantum dot (QD) features many exceptional optical performances but is also vulnerable to moisture which results in structural damage and luminescent decrease. This work provided and fabricated a novel superior hydrophobic methylated core/shell silica-coated QD (MSQ) for high water stability. QD was coated with a silica shell and then surface-methylated by trimethyl silane. Mercaptopropyl trimethoxy silane, tetraethyl orthosilicate, and ethoxy trimethyl silane were utilized as the ligand exchanger, the raw material of silica, and the surface modification, respectively. Characterization results illustrated the core/shell structure of MSQ. In addition, its water contact angle was up to 159.6°. QD-, silica-coated QD(SQ)-, and MSQ-silicone were made and displayed similar absorption, emission, and excitation spectra but different water stabilities. The photoluminescence intensity and photoluminescence quantum yield of MSQ-silicone hardly changed during 15 d of water immersion, in contrast to the dramatical decrease of other two kinds of composite silicone. Specifically, the photoluminescence quantum yield decreases of MSQ-, SQ-, and QD-silicone were 1%, 40%, and 43%, respectively. Therefore, MSQ had a much better water stability. The superior hydrophobic methylated silica-coated QD has a great potential to realize the long-term working stability in a humid environment and the wider application in diverse fields.
Collapse
Affiliation(s)
- Shuling Zhou
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Bin Xie
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xuan Yang
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xinfeng Zhang
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xiaobing Luo
- School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
- Wuhan National Laboratory for Optoelectronics, Wuhan 430074, People's Republic of China
| |
Collapse
|
12
|
Liu Y, Liu X, Liu H, Wang J, Zhang Y, Zhao W, Zhou J. DNA‐Gated N‐CDs@SiO
2
Nanoparticles‐Based Biosensor for MUC1 Detection. ChemistrySelect 2022. [DOI: 10.1002/slct.202104309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuhong Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
- College of Life Sciences Key Laboratory of Applied Photochemistry Nanjing Normal University Nanjing 210023 China
| | - Xuan Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Huaxiao Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Jingzhi Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Yawen Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Wenbo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing 210023 China
| | - Jiahong Zhou
- College of Life Sciences Key Laboratory of Applied Photochemistry Nanjing Normal University Nanjing 210023 China
| |
Collapse
|