Advanced Optical Materials最新文献

{"title":"Errata: A Comprehensive Multipolar Theory for Periodic Metasurfaces","authors":"Aso Rahimzadegan, Theodosios D. Karamanos, Rasoul Alaee, Aristeidis G. Lamprianidis, Dominik Beutel, Robert W. Boyd, Carsten Rockstuhl","doi":"10.1002/adom.202402267","DOIUrl":"https://doi.org/10.1002/adom.202402267","url":null,"abstract":"<div>This correction refers to the article titled “A Comprehensive Multipolar Theory for Periodic Metasurfaces”<sup>[</sup><span><sup>1</sup></span><sup>]</sup> published in Advanced Optical Materials in March 2022. <ul>\u0000<li><span>a) </span>On page 12, in Equation (26), +<i>r</i><sub>TE</sub> should be changed to −<i>r</i><sub>TE</sub>. The correct equation is: <div><span><!--FIGURE-->\u0000<span data-altimg=\"/cms/asset/59c5faca-54f0-4169-9a03-f791ce1fea82/adom202402267-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"5\" ctxtmenu_oldtabindex=\"1\" display=\"true\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" display=\"true\" location=\"graphic/adom202402267-math-0001.png\" style=\"margin-left: 0px; margin-right: 0px;\"><mjx-semantics><mjx-mrow data-semantic-children=\"2,43,46\" data-semantic-content=\"3,9\" data-semantic- data-semantic-role=\"equality\" data-semantic-speech=\"t Subscript upper T upper E Baseline equals 1 minus r Subscript upper T upper E Baseline equals 1 minus StartFraction 3 Over 4 pi normal upper Lamda overTilde squared EndFraction left parenthesis StartFraction 1 Over 1 divided by b 1 minus normal i upper C Subscript d d Baseline EndFraction right parenthesis\" data-semantic-type=\"relseq\"><mjx-msub data-semantic-children=\"0,1\" data-semantic- data-semantic-parent=\"47\" data-semantic-role=\"latinletter\" data-semantic-type=\"subscript\"><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"latinletter\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi><mjx-script style=\"vertical-align: -0.15em;\"><mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\" size=\"s\"><mjx-c></mjx-c><mjx-c></mjx-c></mjx-mi></mjx-script></mjx-msub><mjx-mo data-semantic- data-semantic-operator=\"relseq,=\" data-semantic-parent=\"47\" data-semantic-role=\"equality\" data-semantic-type=\"relation\" rspace=\"5\" space=\"5\"><mjx-c></mjx-c></mjx-mo><mjx-mrow data-semantic-children=\"4,8\" data-semantic-content=\"5\" data-semantic- data-semantic-parent=\"47\" data-semantic-role=\"subtraction\" data-semantic-type=\"infixop\"><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"43\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c></mjx-c></mjx-mn><mjx-mo data-semantic- data-semantic-operator=\"infixop,−\" data-semantic-parent=\"43\" data-semantic-role=\"subtraction\" data-semantic-type=\"operator\" rspace=\"4\" space=\"4\"><mjx-c></mjx-c></mjx-mo><mjx-msub data-semantic-children=\"6,7\" data-semantic- data-semantic-parent=\"43\" data-semantic-role=\"latinletter\" data-semantic-type=\"subscript\"><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-parent=\"8\" data-semantic-role=\"latinletter\" data-semantic-type=\"identifier\"><mjx-c></mjx","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"6 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184309","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":"Narrowband Emission in Pt(II) Complexes via Ligand Engineering for Blue Phosphorescent Organic Light-Emitting Diodes","authors":"Jiyoung Choi,&nbsp;Kiun Cheong,&nbsp;Seungwon Han,&nbsp;Jun Yeob Lee","doi":"10.1002/adom.202401451","DOIUrl":"10.1002/adom.202401451","url":null,"abstract":"<p>In this study, three stable tetradentate Pt(II) complexes are synthesized and characterized, namely, <b>Pt-biPh, Pt-biPh5tBu</b>, and <b>Pt-biPh4tBu</b>, tailored for blue phosphorescent organic light-emitting diodes to realize high-efficiency and narrowband emissions via ligand engineering. Biphenyl (<b>Pt-biPh</b>) or <i>tert</i>-butyl-modified biphenyl (<b>Pt-biPh5tBu</b> and <b>Pt-biPh4tBu</b>) is introduced into the carbene unit of the ligand to control the intermolecular interactions between the Pt(II) phosphors. <b>Pt-biPh, Pt-biPh5tBu</b>, and <b>Pt-biPh4tBu</b> exhibit high photoluminescence quantum yields of 74%, 84%, and 92% with exciton lifetimes of 2.2, 2.3, and 2.5 µs, respectively, demonstrating rapid and efficient light emission. Furthermore, <b>Pt-biPh</b>, <b>Pt-biPh5tBu</b>, and <b>Pt-biPh4tBu</b> show maximum external quantum efficiency (EQE) values of 18.1%, 19.0%, and 21.8%, respectively. <b>Pt-biPh5tBu</b> and <b>Pt-biPh4tBu</b> exhibit narrowband emission with a full width at half maximum of 21 nm owing to the small vibrational emission because of their sterically hindered and bulky ligand structures. Moreover, phosphor-sensitized thermally activated delayed fluorescence devices employing a <b>Pt-biPh4tBu</b> sensitizer achieve a high EQE of 28.6%. In particular, <b>Pt-biPh4tBu</b> performs better than the state-of-the-art phosphor as the sensitizer of the blue phosphor-sensitized thermally activated delayed fluorescence devices in terms of the EQE.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 31","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184307","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":"Advancing Programmable Information Encryption Circuits Through Colorful Phosphorescent Carbon Nanodots with Versatile Lifetimes","authors":"Li-Ying Jiang,&nbsp;Si-Fan Zhang,&nbsp;Ya-Chuan Liang,&nbsp;Yu-Chen Zhou,&nbsp;Hao-Chun Shao,&nbsp;Hai-Yan Wang,&nbsp;Kai-Kai Liu,&nbsp;Chong-Xin Shan","doi":"10.1002/adom.202401494","DOIUrl":"10.1002/adom.202401494","url":null,"abstract":"<p>Optical encryption technology attracts considerable attention in the field of information encryption, information storage, and anti-counterfeiting. However, optical encryption based on conventional on/off mode still faces issues such as low scalability, ease of cracking, and poor storage capacity; multi-dimensional and high storage capacity information encryption systems are thus needed. Herein, a programmable information encryption circuit system is demonstrated by constructing a delay light-emitting diode (LED) array using multi-color phosphorescent carbon nanodots (CNDs) with versatile lifetimes. The CNDs show adjustable luminescence wavelength and lifetime from 192 to 1148 ms. The programmable delay luminescent circuit provides an intricate framework for meticulously integrating an LED array, enabling the creation of intricate patterns or alphanumeric codes. These intricate designs are engineered to serve as a component of an encryption system, which can be deciphered and unveiled under a specific delay time range. This study demonstrates the feasibility and superiority of the system as a new type of information anti-counterfeiting encryption technology, providing a new concept for exploring the field of integrated circuit anti-counterfeiting and encryption.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 31","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184311","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":"Tunable Ultra-Narrow Linewidth Light Source Through Liquid Crystal-Assisted Mini-Bound-States-In-Continuum Cavities","authors":"Renjie Tang,&nbsp;Yiting Wang,&nbsp;Jialing Jian,&nbsp;Zezhao Ju,&nbsp;Yalan Si,&nbsp;Jianghong Wu,&nbsp;Yuting Ye,&nbsp;Yilin Shi,&nbsp;Kangjian Bao,&nbsp;Yingchun Wu,&nbsp;Yiheng Tang,&nbsp;Chunlei Sun,&nbsp;Dawei Gao,&nbsp;Hongtao Lin,&nbsp;Lan Li","doi":"10.1002/adom.202401592","DOIUrl":"10.1002/adom.202401592","url":null,"abstract":"<p>The introduction of liquid crystals into microcavities has garnered considerable attention for their exceptional tunability and high sensitivity to external perturbation factors within their distinct phase states. Here, a novel light source with both wavelength tunability and an exceptionally narrow linewidth is presented. This innovation is realized by strategically manipulating LC molecules, transitioning them from a well-aligned state to a disordered state with increasing temperature. The microcavity is tailored to support bound states in the continuum, a cutting-edge concept in photonic research that allows for light localization with minimal loss. In the pursuit of potential biocompatibility and to reduce cytotoxicity, indium phosphide colloid quantum dots are opted to serve as the emissive carriers within the system. An ultra-narrow linewidth light emission of 0.039 nm is observed, corresponding to a quality factor reaching 16668, along with a tunable range of 1.21 nm and a temperature sensitivity of 33.52 pm K⁻¹. The invention's compact size and tunable character make it an ideal candidate for a variety of potential applications, such as eco-friendly sensors with minimal ecological impact, optical modulators with precise control over light, and adaptable photonic devices that can be integrated with a diverse array of materials and configurations.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 32","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184306","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":"A Study of Degenerate Four‐Wave Mixing and Phase Conjugation in Metallic Nanohybrids","authors":"Mahi R. Singh, Qingzhou Meng, Xintong Jiang","doi":"10.1002/adom.202401741","DOIUrl":"https://doi.org/10.1002/adom.202401741","url":null,"abstract":"A theory of degenerate four‐wave mixing (DFWM) and phase conjugation is developed for metallic nanohybrids, which consist of an ensemble of interacting metallic nanoshells and noninteracting quantum dots (QDs). It is considered that three incident waves are applied to the metallic nanohybrid, and they produce a fourth output mixed wave. These waves induce dipoles in metallic nanoshells, generating surface plasmon polaritons, and interact with each other via the dipole–dipole interactions (DDI). In DFWM, the input and output waves travel in opposite directions, and this retroreflective nature is responsible for the phenomenon of phase conjugation. The analytical expressions for the input transmitted and output reflected wave intensities are calculated in the presence of the surface plasmon polaritons (SPPs) and the DDI polaritons. It is demonstrated that the phase conjugation, the phase coherent phenomena, and the intensities of both input transmitted and output reflected waves are enhanced due to SPPs and DDI polaritons. These findings indicate that the nanohybrid acts as a phase conjugate device and a phase coherent optical amplifier, which can be applied to fabricate optical nanoamplifiers, phase conjugate mirrors, and nanosensors by measuring the intensity of the output reflected wave.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"25 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184312","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":"Construction of Concentration Quenching‐Resistant Multi‐Resonance TADF Emitters via Positional Isomerization for OLEDs","authors":"Xiong Xiao, Jia‐Jun Hu, Zhong‐Zhong Huo, Jia‐Qi Liang, Bo Yang, Xian‐Fang Hong, Zong‐Ju Chen, Yu Wang, Cheng‐Hui Li, You‐Xuan Zheng","doi":"10.1002/adom.202401754","DOIUrl":"https://doi.org/10.1002/adom.202401754","url":null,"abstract":"Multiple resonance thermally activated delayed fluorescence (MR‐TADF) emitters are promising for high‐definition organic light‐emitting diodes (OLEDs) due to their high exciton utilization and color purity. However, strong interchromophore interactions cause most MR‐TADF emitters with planar structures to aggregate at high doping concentrations, leading to degraded efficiencies. Herein, using benzenesulfonyl‐functionalized dibenzothiophene sulfoximine with steric effects, three MR‐TADF emitters (2SBN, 3SBN, and 4SBN) are synthesized by coupling the classic DtBuCzB skeleton at different sites. Three emitters exhibit green or blue‐green emission with full width at half maximum (FWHM) values less than 29 nm and photoluminescence quantum yields exceeding 90%. OLEDs based on 2SBN, 3SBN, and 4SBN achieve high maximum external quantum efficiency (EQE<jats:sub>max</jats:sub>) values of 30.1%, 27%, and 33.8%, respectively, at a 5 wt.% doping concentration. Notably, due to the distorted conformation of 4SBN and suppressed intermolecular interaction, the OLED remains high EQE<jats:sub>max</jats:sub> of 28.9% at a doping concentration of 20 wt.%. These results demonstrate the feasibility of molecular design to modulate spatial conformations via positional isomerism to develop MR‐TADF emitters with reduced concentration quenching.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"3 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184310","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":"Quantitative Decoupling of Strong Mn─Mn Coupling on Photoluminescence of Zero‐Dimensional Hybrid Manganese Chlorides Single Crystals","authors":"Cheng Luo, Juntao Li, Ruiling Zhang, Peigeng Han, Jianyong Liu, Bin Yang","doi":"10.1002/adom.202401591","DOIUrl":"https://doi.org/10.1002/adom.202401591","url":null,"abstract":"Strong Mn─Mn coupling interactions, including dipolar and exchange interactions, significantly affect the photoluminescence quantum yields (PLQYs) in Mn<jats:sup>2+</jats:sup>‐based luminescent materials. However, clarifying the individual effects of dipole–dipole and exchange interactions on photoluminescence (PL) is challenging because these interactions may have similar effects on PL properties, and there is a lack of materials with precisely tunable Mn─Mn distances over a wide range. In this study, the influence of dipolar and exchange coupling on PLQY is quantitatively decoupled by designing a series of hybrid manganese chlorides single crystals with a wide tuning range of Mn─Mn distances, from 6.0 to 9.5 Å. It is found that the PLQY can be enhanced from 2.1% to 57.1%, and the PL lifetime increased from 0.21 to 3.81 ms as the Mn─Mn distance increased. This enhancement is solely attributed to the decreased energy transfer dominated by dipole–dipole interactions. At the shortest Mn─Mn distance of 6 Å, exchange coupling becomes dominant, resulting in an additional red‐side PL band with negligible effects on PLQY and lifetime. This work provides valuable insights into the mechanisms underlying the regulation of PLQY in Mn<jats:sup>2</jats:sup>⁺‐based luminescent materials.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"24 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184315","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":"Direct Evidence of Ultrafast Energy Delocalization Between Optically Hybridized J-Aggregates in a Strongly Coupled Microcavity (Advanced Optical Materials 25/2024)","authors":"Mattia Russo,&nbsp;Kyriacos Georgiou,&nbsp;Armando Genco,&nbsp;Simone De Liberato,&nbsp;Giulio Cerullo,&nbsp;David G. Lidzey,&nbsp;Andreas Othonos,&nbsp;Margherita Maiuri,&nbsp;Tersilla Virgili","doi":"10.1002/adom.202470079","DOIUrl":"https://doi.org/10.1002/adom.202470079","url":null,"abstract":"<p><b>Direct Evidence of Ultrafast Energy Delocalization</b></p><p>Energy delocalization is observed in a strongly coupled cavity containing two layers of donor and acceptor molecules, separated by an inert spacer layer of 2 μm thickness. Margherita Maiuri, Tersilla Virgili, and co-workers (see article number 2400821) use two-dimensional electronic spectroscopy, a technique that provides simultaneously high spectral and temporal resolution, to probe the dynamics of the energy flow processes following ultra-fast excitation. Their finding opens new perspectives on remote photo/induced energy transport useful in advanced optoelectronic devices.\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":"12 25","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202470079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130447","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":"Toward Controllable Self‐Reduction of Mn4+ to Mn2+ by Lanthanide Ions for Luminescence Based Colorimetric Sensing of Temperature","authors":"Liwen Zheng, Yuxin Yang, Hao Wu, Huajun Wu, Guo‐Hui Pan, Yongshi Luo, Zhendong Hao, Liangliang Zhang, Jiahua Zhang","doi":"10.1002/adom.202402020","DOIUrl":"https://doi.org/10.1002/adom.202402020","url":null,"abstract":"Luminescence intensity ratio (LIR) based optical thermometers have attracted lots of attention. In case of color tunable luminescence with the variation of LIR, “RGB colorimetry” based on convenient temperature sensing using a smartphone or digital camera is available. However, narrow emission bands with primary colors are needed for avoiding color crosstalk and achieving high sensitivities. In this paper, Mn<jats:sup>4+</jats:sup> and Mn<jats:sup>2+</jats:sup> coactivated CaAl<jats:sub>12</jats:sub>O<jats:sub>19</jats:sub> (CAO) phosphors are reported that show a narrow red emission of Mn<jats:sup>4+</jats:sup> and green one of Mn<jats:sup>2+</jats:sup> with the number of the two ions controlled by lanthanide ions through manipulation of self‐reduction of Mn<jats:sup>4+</jats:sup> to Mn<jats:sup>2+</jats:sup> in air. The self‐reduction in CAO via the addition of Ce<jats:sup>4+</jats:sup> is mainly studied. First‐principles calculation shows that the self‐reduction is driven by Ca vacancies that are produced in aliovalent substitution of Ce<jats:sup>4+</jats:sup> for Ca<jats:sup>2+</jats:sup> and can reduce the formation energy of Mn<jats:sup>2+</jats:sup>. The comparative study of temperature sensing based on LIR and RG colorimetry is conducted. The relative sensitivity based on LIR is high as 4.5% K<jats:sup>−1</jats:sup> at 373 K and that for RG colorimetry can reach 2% K<jats:sup>−1</jats:sup> at 350 K. These findings provide a strategy for manipulation of manganese valance states and a phosphor for RG colorimetry temperature sensing.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"67 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184075","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":"Extrinsic Self-Trapped-Exciton Emission in Cs5Cu3Cl6I2 for Efficient X-Ray Scintillation","authors":"Yang Nan,&nbsp;Chengcheng Wang,&nbsp;Guangbin Zhang,&nbsp;Zhiyuan Kuang,&nbsp;Wenbo Liu,&nbsp;Mingmin Zhou,&nbsp;Xiuying Zhang,&nbsp;Shuheng Dai,&nbsp;Peng Ran,&nbsp;Xinqi Xu,&nbsp;Qiushui Chen,&nbsp;Yang (Michael) Yang,&nbsp;Lin Zhu,&nbsp;Qiming Peng,&nbsp;Nana Wang,&nbsp;Jianpu Wang","doi":"10.1002/adom.202401158","DOIUrl":"10.1002/adom.202401158","url":null,"abstract":"<p>Efficient and stable scintillators play a crucial role in X-ray detection applications. To enhance the luminescence efficiency under X-ray excitation, the incorporation of multiple emission centers into scintillators is widely explored. Here, it is found that the cesium copper halide Cs₅Cu₃Cl₆I₂ exhibits dual emission centers, enabling high-performance scintillators with an X-ray light yield of 49000 photon MeV⁻¹ and a low detection limit of 4 nGy s⁻¹. The emissions of Cs₅Cu₃Cl₆I₂ are from intrinsic self-trapped exciton (STE) and Frenkel defect-assisted STE. High-energy X-rays can induce an increased fraction of Frenkel defect-assisted STEs, which can serve as an effective scintillation channel. Furthermore, large-area flexible scintillators with a high resolution of 18 lp mm⁻¹ are developed, making them suitable for X-ray imaging applications. These findings offer promising insights for developing more efficient scintillators.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 29","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184313","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}