Advanced Optical Materials最新文献_第4页

Strong Circularly Polarized Electroluminescence Promoted by Using Chiral Co-Assembled Liquid Crystal Polymers

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-10 DOI: 10.1002/adom.202402426

Hang Li, Dong Li, Chunya Fu, Yihan Chen, Yixiang Cheng

引用次数: 0

Efficient Time-dependent Dual-Model Room Temperature Phosphorescent Carbon Quantum Dots/ Boron Nitride Carbide Oxide Matrices

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-08 DOI: 10.1002/adom.202402251

Weihua Li, Guiju Liu, Jishuai Lin, Xiaohan Wang, Haiguang Zhao

{"title":"Efficient Time-dependent Dual-Model Room Temperature Phosphorescent Carbon Quantum Dots/ Boron Nitride Carbide Oxide Matrices","authors":"Weihua Li, Guiju Liu, Jishuai Lin, Xiaohan Wang, Haiguang Zhao","doi":"10.1002/adom.202402251","DOIUrl":"https://doi.org/10.1002/adom.202402251","url":null,"abstract":"Room temperature phosphorescence (RTP) materials have broad applications in the field of optical devices due to tunable wavelengths and lifetimes. However, creating efficient RTP materials that possess multiple optical properties remains a challenge. Herein, a novel approach is developed to in situ form carbon quantum dots (C-dots) embedded in boron nitride carbide oxide (B-N-C-O) matrices by introducing nitrogen, phosphorus, and boron dopants into C-dots (P/B/N doped C-dots), enabling dual RTP emissions and time-dependent afterglow. P/B/N doped C-dots are synthesized by a vacuum-assisted gradient heating approach using ethylenediamine, phosphoric acid, and boric acid as precursors with a yield of 20 g per batch. The introduction of P/B/N dopants provided multiple triplet states, which enable the C-dots to have dual RTP emissions and, a long phosphorescent lifetime ranging from 0.98 to 1.30 s. The in situ formation of matrices surrounding the C-dots enables ultrahigh quantum yield of up to 50%, surpassing the most recently reported RTP C-dots. To demonstrate the potential applications of the RTP C-dots, they are used as anti-counterfeiting ink and phosphorescent dyes for security codes and phosphorescent polyester yarn, showing their suitability for high-level security applications. This work provides an effective route for large-scale synthesis of highly efficient RTP materials and preparation of high-performance optical devices.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Twisted Metasurfaces for On-Demand Focusing Localization (Advanced Optical Materials 1/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-02 DOI: 10.1002/adom.202570041

Guangming He, Chao Qian, Yuetian Jia, Zhixiang Fan, Huaping Wang, Hongsheng Chen

引用次数: 0

Rolled-Up Membranes from GaAs/AlOx Core-Shell Nanowire Ensembles Through Natural Oxidation (Advanced Optical Materials 1/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-02 DOI: 10.1002/adom.202570040

Hidetoshi Hashimoto, Keisuke Minehisa, Kaito Nakama, Kentaro Watanabe, Kazuki Nagashima, Takeshi Yanagida, Fumitaro Ishikawa

引用次数: 0

Chiral Binaphthyl[n]arene Gel: Controlled Gelation Ability and Stepwise Amplification of Circularly Polarized Luminescence

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402460

Zhihong Sun, Jintian Zhong, Hao Tang, Lingyun Wang, Derong Cao

{"title":"Chiral Binaphthyl[n]arene Gel: Controlled Gelation Ability and Stepwise Amplification of Circularly Polarized Luminescence","authors":"Zhihong Sun, Jintian Zhong, Hao Tang, Lingyun Wang, Derong Cao","doi":"10.1002/adom.202402460","DOIUrl":"https://doi.org/10.1002/adom.202402460","url":null,"abstract":"The construction of circularly polarized luminescence (CPL) materials through self-assembly of chiral macrocycles has garnered significant attention. However, controlling their nanostructure morphology and understanding chirality amplification mechanisms remain challenging. Here, a series of chiral macrocyclic homologs containing varying numbers of binaphthyl units (binaphthyl[n]arene, denoted as n, n = 2–5) are synthesized in a single-step reaction. All macrocycles exhibited CPL, with stronger chiral amplification observed in smaller homologs, 2 and 3, showing dissymmetry factors (|glum|) of sixfold and 2.75-fold, respectively, compared to the monomer. These smaller homologs form supramolecular gels in various solvents, while larger ones yield amorphous precipitates. Further enhanced CPL is observed in the gels of 2 and 3, with |glum| reaching up to 3.3 × 10−3, 8.25-fold and 5.5-fold, respectively, compared to the monomer. While the gel of 3 remained stable for months, the gel of 2 transformed to microcrystals over days driven by π-π interactions. The findings illuminate a macrocyclic strategy to control luminophore arrangement by tuning molecular rigidity and flexibility with macrocycle size, offering a route for creating CPL-active materials with amplified chirality and gels with controlled stability.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Room Temperature Broadband Polariton Lasing from a CsPbBr3 Perovskite Plate

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402543

Maksim D. Kolker, Ivan I. Krasionov, Anton D. Putintsev, Ekaterina D. Grayfer, Tamsin Cookson, Dmitry Tatarinov, Anatoly P. Pushkarev, Denis A. Sannikov, Pavlos G. Lagoudakis

引用次数: 0

Ethylenediamine Assisted Synthesis of o-Phenylenediamine-Based Red Emissive Carbon Quantum Dots: A Strategy to Improve the Fluorescence Quantum Yield

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402173

Xipeng Dong, Wanqing Li, Xue Chen, Er Zhuo, Zizhuo Zhai, Hongxia Qi, Yu Kang, Pudun Zhang

{"title":"Ethylenediamine Assisted Synthesis of o-Phenylenediamine-Based Red Emissive Carbon Quantum Dots: A Strategy to Improve the Fluorescence Quantum Yield","authors":"Xipeng Dong, Wanqing Li, Xue Chen, Er Zhuo, Zizhuo Zhai, Hongxia Qi, Yu Kang, Pudun Zhang","doi":"10.1002/adom.202402173","DOIUrl":"https://doi.org/10.1002/adom.202402173","url":null,"abstract":"O-phenylenediamine (OPD) is commonly used as a precursor in the preparation of red emissive carbon quantum dots (R-CQDs) due to the sp2 hybridized structure. However, the low fluorescence quantum yield (QY) of the OPD-based R-CQDs limits its application. Although some efforts have been made, the improvement of QY is still limited. In this paper, a strategy is proposed to improve the QY of OPD-based R-CQDs by introducing ethylenediamine (EDA), which plays a key role as a nitrogen (N) dopant due to its high N content. The molar ratio of OPD to EDA (MOPD/MEDA), the reaction time (t) and temperature (T), and the amount of concentrated H2SO4 (VH2SO4), are optimized. The R-CQDs with QY as high as 32.65% and full width at half maximum (FWHM) emission as narrow as 25 nm are obtained via a hydrothermal procedure under the optimal experimental conditions (i.e., MOPD/MEDA = 1/3, t = 6 h, T = 180 °C and VH2SO4 = 4 mL). Such a QY is higher than most of the reported OPD-based R-CQDs. Besides, it is found that concentrated H2SO4 acts as the catalyst in addition to protonation. The enhancement of QY is attributed to the increase of the aromatic N-containing heterocyclic structures (C═N) after the introduction of EDA and catalysis by H2SO4.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 3","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Excitonic Coupling of a TADF Assistant Dopant and a Multi-Resonance TADF Emitter TADF 辅助掺杂剂与多共振 TADF 发射器的激子耦合

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402241

Simon Metz, Christel M. Marian

{"title":"Excitonic Coupling of a TADF Assistant Dopant and a Multi-Resonance TADF Emitter","authors":"Simon Metz, Christel M. Marian","doi":"10.1002/adom.202402241","DOIUrl":"https://doi.org/10.1002/adom.202402241","url":null,"abstract":"The excitation energy transfer (EET) between two conformers of the deep-blue thermally activated delayed fluorescence emitter DBA-BTICz and the multi-resonance fluorescence emitter ν-DABNA is studied by means of quantum chemistry according to Fermi's Golden Rule. Excitation energies, fluorescence and intersystem crossing rate constants of the individual EET donor and acceptor molecules, determined by a combination of density functional theory and a multireference configuration interaction approach, match the experimental data very well. Interestingly, two different conformers of DBA-BTICz with similar absorption, but distinct emission and transfer properties are found. The vibronic envelopes of the DBA-BTICz emission and the ν-DABNA absorption spectra are computed by means of a vertical Hessian approach. Their overall shapes and peak positions agree well with the experimental data but the widths of the computed vibronic spectra remain a critical factor in the evaluation of the spectral overlap integral. The distance and orientation dependencies of the excitonic coupling matrix elements, evaluated in the ideal dipole approximation (IDA), are carefully assessed by means of the monomer transition density (MTD) approach. Deviations between the IDA and MTD results of at most 20% at typical Förster radii justify the use of the computationally much less demanding IDA for estimating environmental and orientation effects on the EET rate.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 5","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research Progress of Colloidal Chemistry and Rheological Dynamics for Printable Perovskite Photovoltaics

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402521

Chenxiang Gong, Cong Wang, Baojin Fan, Xiangchuan Meng, Siyi Shi, Ting Hu, Xiaotian Hu, Yiwang Chen

{"title":"Research Progress of Colloidal Chemistry and Rheological Dynamics for Printable Perovskite Photovoltaics","authors":"Chenxiang Gong, Cong Wang, Baojin Fan, Xiangchuan Meng, Siyi Shi, Ting Hu, Xiaotian Hu, Yiwang Chen","doi":"10.1002/adom.202402521","DOIUrl":"https://doi.org/10.1002/adom.202402521","url":null,"abstract":"The efficiency of solar cells based on organic–inorganic hybrid perovskite materials has already met the standards for commercial applications. However, there remains an efficiency gap of ≈30% between small-area devices and industrial-scale devices. Large-area devices, in particular, tend to exhibit lower optoelectronics and reduced environmental stability. The ink fluid behavior significantly influences the crystal process of large-area perovskite films during printing fabrication, which cannot be disregarded. As the manufacturing area and total solvent volatilization increase, the impact of inhomogeneous migration by perovskite colloidal particles gradually intensifies. This work focuses on elucidating the impact of the rheological properties of perovskite colloidal particles on the crystalline quality and device optoelectronic performance of perovskite films during deposition. It explores the fluid behavior of colloidal particles in the ink and throughout the printing process, the effects of additives on the motion of perovskite colloidal particles, and how the ink's rheological properties change when modifying agents interact with perovskite particles. Additionally, the functional aspects of controlling perovskite film formation and optimizing photovoltaic performance in perovskite solar cells (PSCs) are thoroughly discussed. Ultimately, the preparation process improvement of perovskite precursor solution and the current technical barriers to commercialization are summarized and prospected.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast Laser Inkless Full-Color Printing on Flexible and Thermolabile Substrates

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-30 DOI: 10.1002/adom.202402293

Zhewei Wang, Liye Xu, Zhefeng Zhang, Kaikai Du, Wei Yan, Weicheng Cui, Min Qiu

{"title":"Ultrafast Laser Inkless Full-Color Printing on Flexible and Thermolabile Substrates","authors":"Zhewei Wang, Liye Xu, Zhefeng Zhang, Kaikai Du, Wei Yan, Weicheng Cui, Min Qiu","doi":"10.1002/adom.202402293","DOIUrl":"https://doi.org/10.1002/adom.202402293","url":null,"abstract":"Laser-induced structural color technology holds great promise for the mass-production of structural colors of wide color gamut, high stability, and low cost. However, its application to flexible and thermolabile substrates (such as plastics and paper) is currently hindered by the reliance on high-temperature processes or metal substrates. Here, an ultrafast laser inkless printing technology is proposed to address this challenge. By optimizing the magnetron sputtering process with a pre-sintered TiN target, the reflective TiN layer can be prepared at room temperature, on which coated an absorptive TiN layer to produce the TiN hybrid film. Under laser irradiation, this hybrid film is transformed into an “oxide-absorptive-reflective” tri-layer film structure when the upper absorptive TiN layer is oxidized. In this case, the thicknesses of the oxide and absorptive layers can be adjusted by modifying the total accumulated laser fluence. This enables the tuning of the double-absorption wavelength, thereby obtaining basic structural colors for printing. The high durability of the obtained structural colors is verified through various aging tests. Notably, this technology is successfully applied to flexible and thermolabile substrates, including plastics and cardboard paper, which may further promote the practical application of laser-induced structural color technology.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0