Wei Liu, Siwei Zhang, Tao Jiang, Shaoling Li, Zhixin Xie, Yu Zhao, Jianyu Zhang, Carl Redshaw, Xing Feng, Jacky W. Y. Lam, Ben Zhong Tang
{"title":"Pyrene-Based Blue Aggregation-Induced Emission Luminogens: The Synergistic Effect of Through-Space Conjugation for High Exciton Utilization Efficiency and Narrow-Band and Blue OLEDs","authors":"Wei Liu, Siwei Zhang, Tao Jiang, Shaoling Li, Zhixin Xie, Yu Zhao, Jianyu Zhang, Carl Redshaw, Xing Feng, Jacky W. Y. Lam, Ben Zhong Tang","doi":"10.1002/adom.202402567","DOIUrl":"https://doi.org/10.1002/adom.202402567","url":null,"abstract":"<p>Achieving outstanding narrow-band emission and improving the triplet exciton utilization efficiency is crucial for high organic light-emitting diodes (OLEDs) electroluminescence (EL) efficiency. Herein, novel 1,3-asymmetrical substituted pyrene-based blue “hot exciton” materials with aggregation-induced emission (AIE) characteristics are synthesized, utilizing the pyrene ring's staggered energy levels for high-performance OLEDs. The triphenylamine-decorated pyrene-based blue emitters exhibited narrow full width at half maxima (FWHM) < 60 nm, while the tetraphenylethylene-decorated compounds displayed a higher fluorescence quantum yield but broader FWHM emission in the film state. These AIE luminogens (AIEgens) show good EL efficiency and high exciton utilization efficiency (>35.6%) in nondoped OLED devices. Meanwhile, both triphenylamine-decorated and tetraphenylethylene-decorated pyrenes are further utilized as an emitter layer in thermally activated delayed fluorescence (TADF)-sensitized blue OLEDs with great EL performance. Moreover, the TPE-decorated pyrene-based <b>TPE-<i>m</i>2Ph</b> demonstrated a maximum brightness, maximum current efficiency, maximum power efficiency, and maximum external quantum efficiency of 35230 cd m<sup>−2</sup>, 42 cd A<sup>−1</sup>, 48 lm W<sup>−1</sup>, and 14.9%, respectively.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074723","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}
Can Wang, Jinxing Cao, Jiawang Guo, Chao Guan, Kai Wang, Qingbin Zhang, Peixiang Lu
{"title":"On Chip Photothermoelectric Logic Gates with Sub-Picosecond Photothermal Response","authors":"Can Wang, Jinxing Cao, Jiawang Guo, Chao Guan, Kai Wang, Qingbin Zhang, Peixiang Lu","doi":"10.1002/adom.202403528","DOIUrl":"https://doi.org/10.1002/adom.202403528","url":null,"abstract":"<p>On-chip electronic devices driven by ultrafast light represent a promising approach to surpass traditional information processing speeds. However, practical implementation has been limited by the requirement for material with complex heterostructure and femtosecond lasers with high pulse energy, carrier-envelope phase stability, and few-cycle durations. To address this limitation, an on-chip logic gate is developed on a metallic material platform based on the photothermoelectric effect (PTE) and plasma resonance absorption of gold. By manipulating the light polarization, hot carrier migration is controlled, achieving a high polarization ratio and bipolar response. Meanwhile, time-resolved transient absorption spectroscopy demonstrates that the switching time is on the sub-picosecond scale. The logic gate used two picojoule-level laser pulses as inputs, outputting nanoampere-level currents with controllable polarity. This design provides a convenient fabrication process, promising for large-scale high speed logic computing devices.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074725","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}
{"title":"Inorganic Nanoscintillators: Current Trends and Future Perspectives (Advanced Optical Materials 12/2025)","authors":"Christophe Dujardin, Aurélie Bessière, Anne-Laure Bulin, Frédéric Chaput, Benoit Mahler","doi":"10.1002/adom.202570084","DOIUrl":"https://doi.org/10.1002/adom.202570084","url":null,"abstract":"<p><b>Nanoscintillators</b></p><p>Nanoscintillators are tiny particles that emit light under ionizing radiation. In article 2402739, Christophe Dujardin and co-workers explore their energy relaxation mechanisms, which exhibit many differences compare to bulk materials, and discuss their numerous applications, with a large focus on their potential as theranostic agents. The cover illustrates how a single X-ray photon triggers energy deposition across multiple nanoscintillators. Cover image by Zoé Dujardin.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861721","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}
Olli Siltanen, Kimmo Luoma, Andrew J. Musser, Konstantinos S. Daskalakis
{"title":"Enhancing the Efficiency of Polariton OLEDs in and Beyond the Single-Excitation Subspace (Advanced Optical Materials 12/2025)","authors":"Olli Siltanen, Kimmo Luoma, Andrew J. Musser, Konstantinos S. Daskalakis","doi":"10.1002/adom.202570083","DOIUrl":"https://doi.org/10.1002/adom.202570083","url":null,"abstract":"<p><b>Enhancing Polariton OLEDs</b></p><p>In article 2403046, Olli Siltanen, Konstantinos S. Daskalakis, and co-workers propose a theoretical model for triplet harvesting in polariton OLEDs. Rates for polaritonic reverse inter-system crossing and triplet-triplet annihilation are derived, and delocalization effects on singlet-singlet annihilation are studied, paving the way for more efficient OLEDs. Cover image by Konstantinos S. Daskalakis.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861720","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}
{"title":"Efficient and Long Lifetime Red InP-Based QLEDs Enabled by Simultaneously Improved Carrier Injection Balance and Depressed Leakage (Advanced Optical Materials 12/2025)","authors":"Shuaibing Wang, Wanying Yang, Yu Li, Ouyang Lin, Wentao Niu, Mengyuan Chen, Binbin Hu, Fei Chen, Huaibin Shen, Feng Teng, Chunhe Yang, Aiwei Tang","doi":"10.1002/adom.202570085","DOIUrl":"https://doi.org/10.1002/adom.202570085","url":null,"abstract":"<p><b>Light-Emitting Diodes</b></p><p>Polyvinyl pyrrolidone (PVP) is introduced as an intermediate layer to block excessive electron injection into the InP-based QDs layer while simultaneously reducing leakage current. The optimized device achieves a peak external quantum efficiency (EQE) of 23.5% and a long <i>T</i><sub>95</sub> operational lifetime of over 800 hours at an initial luminance of 1,000 cd m<sup>−2</sup> for red InP-based QLEDs emitting at 624 nm. More details can be found in article 2402677 by Fei Chen, Huaibin Shen, Aiwei Tang, and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861717","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}
Edvinas Radiunas, Lukas Naimovičius, Paulius Baronas, Augustina Jozeliūnaitė, Edvinas Orentas, Karolis Kazlauskas
{"title":"CN-Tuning: A Pathway to Suppress Singlet Fission and Amplify Triplet-Triplet Annihilation Upconversion in Rubrene (Advanced Optical Materials 12/2025)","authors":"Edvinas Radiunas, Lukas Naimovičius, Paulius Baronas, Augustina Jozeliūnaitė, Edvinas Orentas, Karolis Kazlauskas","doi":"10.1002/adom.202570086","DOIUrl":"https://doi.org/10.1002/adom.202570086","url":null,"abstract":"<p><b>CN-Functionalized Rubrene</b></p><p>The cover of article 2403032 by Karolis Kazlauskas and co-workers, illustrates the CN-functionalization of rubrene as a pivotal mechanism to suppress singlet fission and amplify triplet-triplet annihilation upconversion (TTA-UC) in the solid state, enhancing near-infrared UC efficiency for energy applications.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861954","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}
Elisa De Luca, Chiara Coricciati, Marcella Trombetta, Giuseppe Gigli, Pamela Mozetic, Alberto Rainer
{"title":"Optical Nanoscopy for Elucidating Nano–Bio Interactions: A One Health Perspective","authors":"Elisa De Luca, Chiara Coricciati, Marcella Trombetta, Giuseppe Gigli, Pamela Mozetic, Alberto Rainer","doi":"10.1002/adom.202401397","DOIUrl":"https://doi.org/10.1002/adom.202401397","url":null,"abstract":"<p>Advances in nanotechnology have led to an increased adoption of nanoengineered materials in several areas (including, but not limited to, medicine, food, cosmetics, electronics, and energy), implying their direct or indirect contact with the human body or their dispersion in the environment. In the “Era of One Health”, the concept of exposome is becoming central, thereby demanding for a deeper understanding of the relationships and interactions of “stressors” in the environment and their biological effects. The fast evolution of super-resolution microscopy (also called optical nanoscopy) greatly contributes to the characterization of biological structures and cellular dynamics at the nanometer scale, helping to unveil the intricate nature of the interactions occurring between nanomaterials and biological systems (nano–bio interactions), which need to be elucidated in view of a safe and sustainable application of nanotechnology. In this review, the contribution of optical nanoscopy (with a focus on far-field fluorescence-based techniques) to the characterization and understanding of nanomaterial interactions with biological systems at the single-particle and molecular scale is enlightened, with an accent on their impact on human and ecosystem health.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 13","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401397","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905369","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}
Fu Deng, Fengjie Zhu, Xiaoyue Zhou, Yi Chan, Jingbo Wu, Caihong Zhang, Biaobing Jin, Jensen Li, Kebin Fan, Jingdi Zhang
{"title":"Frequency-Selective Terahertz Wave Amplification by a Time Boundary in Huygens' Metasurface","authors":"Fu Deng, Fengjie Zhu, Xiaoyue Zhou, Yi Chan, Jingbo Wu, Caihong Zhang, Biaobing Jin, Jensen Li, Kebin Fan, Jingdi Zhang","doi":"10.1002/adom.202402052","DOIUrl":"https://doi.org/10.1002/adom.202402052","url":null,"abstract":"<p>Ultrafast manipulation of optical resonance can establish the time-boundary effect in time-variant media leading to a new degree of freedom for coherent control of electromagnetic waves. Here, it is demonstrated that a free-standing all-dielectric Huygens' metasurface of degenerate electric and magnetic resonances can prompt broadband near-unity transmission in its static state, whereas it enables wave amplification in the presence of time boundaries. The time boundary is realized by femtosecond laser excitations that transiently inject free carriers into the constituent meta-atoms for dynamic removal of a pre-established twofold degeneracy. It is showed that the transmittance in the photo-excited Huygens' metasurface can exceed unity, corresponding to the terahertz (THz) wave amplification at a record high amplification rate of up to 20% in intensity. Remarkably, the associated operating frequency can be tuned by fine control over the interval between the arrival of the time boundary and that of the seed THz pulse. By numerical simulations and analysis with time-dependent coupled mode theory, the wave amplification results are shown from the ultrafast Q-switching and shift in resonant frequencies. This work demonstrates a new approach to achieving tunable amplification in an optical microcavity by exploiting the concept of time-variant media and the unique electromagnetic properties of Huygens' metasurface.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 13","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905368","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}
{"title":"All-Optically Driven Optofluidic Light Modulator","authors":"Riccardo Zamboni, Margherita Altin, Giovanni Bragato, Liana Lucchetti, Cinzia Sada, Annamaria Zaltron","doi":"10.1002/adom.202403457","DOIUrl":"https://doi.org/10.1002/adom.202403457","url":null,"abstract":"<p>Liquid crystals (LCs) are widely recognized for unique physical and optical properties and remarkable ability to modulate light beams. Traditional methods for actuating LCs by electric fields rely on the use of metallic electrodes, which face limitations in the spatial resolution of LCs actuation and their effective integration into optofluidic devices. In this work, an innovative approach is presented to realize a fully integrated optofluidic light modulator, capable of modifying the optical properties of a light beam propagating through an optical waveguide and coupled with a microfluidic channel. Specifically, the optoelectronic properties of lithium niobate (LN) are leveraged to control the orientation of LCs molecules confined in the microfluidic channel without the need for fixed metallic structures, but solely exploiting light-induced electric fields. It is demonstrated that the light-driven orientation of the LCs can efficiently modulate both the intensity and polarization of the light beam propagating through the waveguide, while the desired amplitude and time-constant of the output optical signal can be achieved by tuning the compositional properties of the LN substrate. The modulation of the guided beam is completely defined and controlled by a pump light source, assuring a high degree of reconfigurability and compatibility of the final optofluidic lab-on-a-chip system.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202403457","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074735","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}
{"title":"A Versatile Method for Nano-Fabrication on Diamond Film: Flexible Diamond Metasurfaces as a Demonstration","authors":"Yicheng Wang, Jixiang Jing, Yumeng Luo, Linjie Ma, Xiaomin Wang, Yuhao Zhang, Dong-Keun Ki, Zhongqiang Wang, Qi Wang, Kwai Hei Li, Zhiqin Chu","doi":"10.1002/adom.202403429","DOIUrl":"https://doi.org/10.1002/adom.202403429","url":null,"abstract":"<p>Diamond exhibits unique performance across a wide range of applications due to its enormous presentable properties in electronic, photonic, and quantum fields. Yet heterogeneous integration of diamonds for on-chip functionalities, like 2D materials, remains challenging due to the hard acquisition of scalable, transferable, and ultrathin diamond samples. Recently, edge-exposed exfoliation is demonstrated as an effective way to produce wafer-scale, freestanding, and ultrathin diamond films. However, the incompatibility of the newly developed diamond film with conventional nano-fabrication methods makes it difficult to fabricate diamond film into practical devices. Herein, the mask-transferring by sugar is demonstrated as a versatile method for pattern-definition on diamond films, which shows satisfying geometrical resolution and accuracy comparing to conventional approaches. Additionally, based on this method, the flexible all-diamond metasurfaces functioning as structural colors are achieved, which indicates its wide potential for fabricating more diamond-related devices.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 14","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202403429","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074707","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}