Yining Zhu, Huanzheng Zhu, Rongxuan Zhu, Yiwei Zhou, Min Qiu, Qiang Li
{"title":"Photon-Engineered All-Day Radiative Warming Utilizing Solar and Atmospheric Energy","authors":"Yining Zhu, Huanzheng Zhu, Rongxuan Zhu, Yiwei Zhou, Min Qiu, Qiang Li","doi":"10.1002/adom.202402432","DOIUrl":"https://doi.org/10.1002/adom.202402432","url":null,"abstract":"<p>Maintaining optimal temperatures continuously is crucial for various applications, yet existing methods relying on selective solar absorbers fail to provide continuous warmth throughout the entire day. A photon-engineered flexible film is proposed for all-day radiative warming, integrating multiple functional layers to regulate radiation across different spectral bands. This design enhances the heat absorption efficiency of solar and atmospheric energy (α<sub>0.3−2.5</sub> <sub>µm</sub> = 0.95, α<sub>5−8</sub> <sub>µm</sub> = 0.75, α<sub>14−16</sub> <sub>µm</sub> = 0.84) while minimizing outward radiation (ɛ<sub>8-14</sub> <sub>µm</sub> = 0.13). Experimental validation demonstrates superior performance over traditional low-emissivity warming blankets under varying environmental conditions, achieving 9.4 °C higher temperature during the day and 1.4 °C higher at night. Moreover, the film's remarkable warming capability highlights its significant application value in anti-condensation. This underscores its potential as a sustainable and effective thermal management solution for carbon neutrality.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 8","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622562","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":"Bio-Inspired Bright Non-Iridescent Structurally Colored Nanopigments Featuring Additive Color Mixing Performance (Advanced Optical Materials 6/2025)","authors":"Wentao Wang, Wenzhen Zhang, Yicheng Zhou, Yuyuan Yao, Bingtao Tang, Liming Ding","doi":"10.1002/adom.202570059","DOIUrl":"https://doi.org/10.1002/adom.202570059","url":null,"abstract":"<p><b>Photonic Pigments</b></p><p>Inspired by the Steller's jay, non-iridescent structurally colored nanopigments composed of hollow SiO<sub>2</sub> microspheres with amorphous carbon on the inner wall of the shell and disordered metasurfaces on the shell layer were created. Different from previous studies, each individual microsphere is an independent chromogenic unit and has additive color mixing performance. More details can be found in article 2402324 by Wentao Wang, Liming Ding, 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 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475822","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}
Fengxia Li, Xiaohan Yin, Jia-Yuan Yin, Jing-Ya Deng
{"title":"Independent and Free Control of Multiple Beams Enabled by Wideband Spin-Decoupled Metasurface (Advanced Optical Materials 6/2025)","authors":"Fengxia Li, Xiaohan Yin, Jia-Yuan Yin, Jing-Ya Deng","doi":"10.1002/adom.202570061","DOIUrl":"https://doi.org/10.1002/adom.202570061","url":null,"abstract":"<p><b>Spin-Decoupled Metasurface</b></p><p>In article 2401777, Jing-Ya Deng and co-workers propose a spin-decoupled strategy to generate multiple beams based on polarization conversion meta-atom by regulating its cross-polarized components. Combining propagation and PB phases, the deflection angles, polarizations, and topological charges can be independently and freely controlled in wideband, which can be utilized to polarization multiplexing and multichannel meta-devices in communication, imaging, and target detection.\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 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475809","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}
Driss Mouloua, Michael Martin, Miguel Beruete, Christophe Jany, Karim Hassan, Thierry Baron
{"title":"Exploring Strategies for Performance Enhancement in Micro-LEDs: a Synoptic Review of III-V Semiconductor Technology (Advanced Optical Materials 6/2025)","authors":"Driss Mouloua, Michael Martin, Miguel Beruete, Christophe Jany, Karim Hassan, Thierry Baron","doi":"10.1002/adom.202570060","DOIUrl":"https://doi.org/10.1002/adom.202570060","url":null,"abstract":"<p><b>Semiconductor Technology</b></p><p>In article 2402777, Driss Mouloua, Thierry Baron, and co-workers explore various strategies to enhance the performance of Micro-light-emitting diode (Micro-LED) technologies, including passivation, distributed Bragg reflectors, metamaterials, plasmonics, and two-dimensional materials. The paper also examines fabrication and integration techniques, key factors such as external quantum efficiency, emission wavelength, and electrical injection, and discusses applications and future directions.\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 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202570060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475816","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}
Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson
{"title":"High-Transmission Mid-Infrared Bandpass Filters using Hybrid Metal-Dielectric Metasurfaces for CO2 Sensing","authors":"Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson","doi":"10.1002/adom.202402603","DOIUrl":"https://doi.org/10.1002/adom.202402603","url":null,"abstract":"<p>Mid-infrared (MIR) spectroscopy is widely applied in many applications such as gas sensing, industrial inspection, astronomy, and imaging. While thin-film narrowband interference filters are cost-effective for MIR sensing, their complex fabrication limits their suitability for miniaturized systems. Plasmonic nanostructures, though explored for MIR applications, suffer from broad spectral responses and low efficiencies due to the ohmic losses inherent in metals. All-dielectric metasurfaces, with low intrinsic losses, have been proposed as alternatives for MIR spectroscopy. However, their operation is typically limited to reflection mode. In this work, a hybrid metal-dielectric metasurface operating in transmission mode for MIR spectroscopy is introduced. Composed of germanium (Ge) atop aluminium (Al) cylinders on a calcium fluoride (CaF<sub>2</sub>) substrate, the metasurface achieves high transmission efficiency (80%) at λ = 2.6 µm and a narrow full-width-half-maximum of 0.4 µm. The transmission response arises due to the hybridization of modes between the Ge and Al structures. Numerical simulations are demonstrated, a straightforward fabrication method, and successful deployment as an in-line optical filter for CO<sub>2</sub> gas detection, achieving a detection limit of ≈0.04% (≈400 ppm). This work highlights the potential of hybrid metasurfaces as in-line gas sensing filters in MIR spectroscopy.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 8","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402603","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622565","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":"Machine Learned Structure-Property Correlation Between Nanohelices and Circular Dichroism","authors":"Juanshu Wu, Yingming Pu, Jin Wang, Bing Gu, Xin Chen, Hongyu Chen","doi":"10.1002/adom.202402595","DOIUrl":"https://doi.org/10.1002/adom.202402595","url":null,"abstract":"<p>Rational design of chiral nanostructures with desired Circular Dichroism (CD) spectra requires a quantitative structure-property relationship, which has so far been unavailable. Using a data-driven method, the aim is to establish such a relationship for nanohelices, a prevalent structural element of chiral nanostructures. Given the challenges in synthesizing nanohelices and separating racemic mixtures, obtaining extensive CD data has been difficult. Instead, CD spectra of 1260 nanohelices are stimulated using finite-difference time-domain method. This dataset is used to train a convolutional neural network that can accurately predict the CD spectra using a few key structural parameters such as pitch and curl. Moreover, an inverse design model is developed that can generate the right helix with the desired CD. To establish quantitative relationships, Shapley Additive explanations analysis and case studies are devised for the prediction model. The algorithm efficiently analyzes the structure-property correlation, revealing the specific degrees of structural influence on the spectroscopic characteristics. Furthermore, the neural-network-based model can be extended via transfer learning to predict CD spectra of nanohelices made of other noble metals (Ag, Cu). It is believed that AI-based approaches can significantly broaden the scope of wet-chemistry nanosynthesis and computational techniques in the design of chiral nanostructures.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689433","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":"Recent Advances in Narrow Emission Bandwidth Materials for Application in Organic Light-Emitting Diodes","authors":"Jihoon Kang, Dong Jin Shin, Jun Yeob Lee","doi":"10.1002/adom.202402653","DOIUrl":"https://doi.org/10.1002/adom.202402653","url":null,"abstract":"<p>The preparation of narrow emission bandwidth materials is crucial for the development of advanced organic light-emitting diodes (OLEDs). In this review article, state-of-the-art methodologies used for the preparation of narrow bandwidth emitters with high color purity are summarized, and favorable design strategies are rationally organized. Currently used OLEDs have some issues, such as device stabilization that must be resolved, and color purity should also be considered. Given the recent exponential growth in the number and types of narrowband emissive organic emitters and organometallic complexes exhibiting multiple-resonance thermally activated delayed fluorescence and metal-to-ligand charge transfer characteristics, there is an urgent need to establish key technology descriptors for OLEDs with high color purity. In this review, recent developments in boron, fused indolocarbazole, carbonyl, phosphine oxide, and organometallic complexes that exhibit narrow emission spectra are described, and future directions to advance the performance of such devices are suggested.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 8","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622564","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}
Ze-Qing Liu, Su-Heng Li, Gao-Da Ye, Yuhan Du, Yu Feng, Hu Zhang, Lei Qu, Nai-Qi Wang, He Hao, Lingjie Sun, Fangxu Yang, Yue-Feng Liu, Ran Ding, Yu Liu, Jing Feng
{"title":"Efficient Organic Light-Emitting Diodes Based on Ambipolar Doped Organic Single Crystals of Bis-Styrylbenzene Derivatives","authors":"Ze-Qing Liu, Su-Heng Li, Gao-Da Ye, Yuhan Du, Yu Feng, Hu Zhang, Lei Qu, Nai-Qi Wang, He Hao, Lingjie Sun, Fangxu Yang, Yue-Feng Liu, Ran Ding, Yu Liu, Jing Feng","doi":"10.1002/adom.202403209","DOIUrl":"https://doi.org/10.1002/adom.202403209","url":null,"abstract":"<p>Ambipolar carrier transport in organic single crystals is essential to maximize exciton recombination and thus achieve high-efficiency organic light-emitting diodes (OLEDs). Herein, two bis-styrylbenzene derivatives, 1,4-bis(4-methylstyryl)benzene (3PV-Me) and 1,4-bis(4-trifluoromethylstyryl)benzene (3PV-CF<sub>3</sub>), are introduced into the construction of ambipolar 3PV-CF<sub>3</sub> doped 3PV-Me (3PV-Me-CF<sub>3</sub>) single crystals. The same molecular skeleton of these two molecules endow them with similar molecular shapes and sublimation temperatures. Doping with 3PV-CF<sub>3</sub> dopants is evaluated for their effect on the photophysical properties of host 3PV-Me crystal. Systematic spectroscopic investigations and high-resolution time-of-flight secondary ion mass spectrometry (TOF-SIMS) depth profiling are further conducted to gain a deep insight into the doping details of 3PV-Me-CF<sub>3</sub> single crystals. Furthermore, their ambipolar carrier transport behavior is evaluated by the space-charge-limited current (SCLC) method, exhibiting nearly equal hole and electron mobilities. These ambipolar 3PV-Me-CF<sub>3</sub> single crystals are then utilized for the fabrication of single-crystal OLEDs, which demonstrated an almost sixfold enhancement in the electroluminescence (EL) efficiency in comparison to the unipolar 3PV-Me single-crystal OLEDs. The findings reveal the great potential of well-balanced ambipolar organic single-crystalline semiconductors for the development of high-performance single-crystal optoelectronic devices.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 12","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861628","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}
Sophie Fisher, Gaurav Arya, Arka Majumdar, Zin Lin, Steven G. Johnson
{"title":"End-to-End Metasurface Design for Temperature Imaging via Broadband Planck-Radiation Regression","authors":"Sophie Fisher, Gaurav Arya, Arka Majumdar, Zin Lin, Steven G. Johnson","doi":"10.1002/adom.202402498","DOIUrl":"https://doi.org/10.1002/adom.202402498","url":null,"abstract":"<p>A theoretical framework is presented for temperature imaging from long-wavelength infrared (LWIR) thermal radiation (e.g., 8–12 µm) through the end-to-end design of a metasurface-optics frontend and a computational-reconstruction backend. A new nonlinear reconstruction algorithm, “Planck regression”, is introduced to reconstruct the temperature map from a gray scale sensor image, even in the presence of severe chromatic aberration, by exploiting black body and optical physics particular to thermal imaging. This algorithm is combined with an end-to-end approach that optimizes manufacturable, single-layer metasurfaces to yield the most accurate reconstruction. The designs demonstrate high-quality, noise-robust reconstructions of arbitrary temperature maps (including completely random images) in simulations of an ultra-compact thermal-imaging device. It is also shown that Planck regression is much more generalizable to arbitrary images than a straightforward neural-network reconstruction, which requires a large training set of domain-specific images.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688908","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}
Jingang Li, Rundi Yang, Runxuan Li, Costas P. Grigoropoulos
{"title":"Exciton Dynamics in 2D Transition Metal Dichalcogenides","authors":"Jingang Li, Rundi Yang, Runxuan Li, Costas P. Grigoropoulos","doi":"10.1002/adom.202403137","DOIUrl":"https://doi.org/10.1002/adom.202403137","url":null,"abstract":"<p>2D transition metal dichalcogenides (TMDCs) have emerged as a promising class of materials for broad applications. The physical properties of TMDCs are dominated by strong excitonic effects, which critically determine the performance of photonic and optoelectronic devices. In this Review, the current state of research on exciton dynamics in TMDCs is summarized, discussed common optical characterization techniques, and analyzed factors that influence exciton behaviors, such as thickness, dielectric environment, strain, and heterostructure configuration. Throughout this work, the challenges and opportunities for future research in this rapidly evolving field are also highlighted.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 11","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202403137","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831221","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}