Advanced Functional Materials最新文献_第9页

Phase‐Change Organic Small Molecules Enable Operation at Room Temperature in All‐Solid‐State Lithium‐Metal Pouch Cells 相变有机小分子能够在室温下在全固态锂金属袋状电池中工作

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202519819

Wen Yu, Nanping Deng, Xiaofan Feng, Zonghang Liu, Wenwen Duan, Bowen Cheng, Weimin Kang

{"title":"Phase‐Change Organic Small Molecules Enable Operation at Room Temperature in All‐Solid‐State Lithium‐Metal Pouch Cells","authors":"Wen Yu, Nanping Deng, Xiaofan Feng, Zonghang Liu, Wenwen Duan, Bowen Cheng, Weimin Kang","doi":"10.1002/adfm.202519819","DOIUrl":"https://doi.org/10.1002/adfm.202519819","url":null,"abstract":"Poly(ethylene oxide) (PEO)‐based electrolytes exhibit huge potential for application in all‐solid‐state lithium batteries (ASSLBs). However, effective strategies to address the temperature‐dependent limitation of the solvent‐free polymer electrolytes remain elusive. Herein, this study pioneers the application of organic small‐molecule with phase‐change properties within all‐solid‐state batteries. The hydrogen bond‐induced crystallization suppression and localized thermal environmental influences during phase transition are proposed. The effect is based on a mechanism of crystallization space occupation, implemented through a secondary cooling crystallization following the conventional evaporation crystallization. The defect‐rich PEO crystal structure is induced within the confined spaces between preferentially crystallized phase‐change material myristic acid. Moreover, the constructed spatial gradient of myristic acid content within the whole electrolyte can create a high amorphous region and stable electrolyte/electrode interfaces, enabling rapid lithium‐ion transport. Consequently, the temperature‐responsive electrolyte after the secondary cooling crystallization exhibits enhanced ionic conductivity (from 7.20 × 10−5 to 1.23 × 10−4 S cm−1 at 30 °C) and lithium‐ion transference number. The assembled all‐solid‐state pouch cells demonstrate stable cycling with a discharge specific capacity of 152.1 mAh g−1 at 35 °C and 106.5 mAh g−1 at room temperature with average Coulomb efficiency over 96%. This work advances the development of solvent‐free ASSLBs for ambient‐temperature operation.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"4 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Gallium‐Based Liquid Metals as an Engineered Multifunctional Platform: from Biomedical Innovations to Energy and Material Systems 镓基液态金属作为工程多功能平台：从生物医学创新到能源和材料系统

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202500810

Suqin Han, Liwei Chen, Yan Sun, Yurong Guo, Lan Bao, Mingming Gao, Xing Gao, Ling Chen, Duo Liu, Jibin Song

{"title":"Gallium‐Based Liquid Metals as an Engineered Multifunctional Platform: from Biomedical Innovations to Energy and Material Systems","authors":"Suqin Han, Liwei Chen, Yan Sun, Yurong Guo, Lan Bao, Mingming Gao, Xing Gao, Ling Chen, Duo Liu, Jibin Song","doi":"10.1002/adfm.202500810","DOIUrl":"https://doi.org/10.1002/adfm.202500810","url":null,"abstract":"This review breaks with traditional research by repositioning gallium‐based liquid metals (LMs) as a programmable, dynamically reconfigurable multifunctional platform. Leveraging their unique liquid‐state properties including morphological transformability, high thermal/electrical conductivity, catalytic activity, and biocompatibility, this work systematically elucidates how proactive design and precise modulation of these physicochemical attributes enable the construction of cross‐domain adaptive integrated systems. The core innovation lies in proposing an “engineered platform” strategy: By harnessing adaptive interfacial capabilities and dynamic reconfigurability of LM, it achieves on‐demand functional convergence across diverse fields from biomedicine and advanced energy to intelligent sensing and thermal management. Beyond analyzing LM's material essence and controllable synthesis methods, this work reveals a synergistic “property‐function‐system” design mechanism, thereby establishing an innovative paradigm for developing next‐generation smart materials and disruptive technologies.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"20 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Highly Adhesive Liquid Metal Interface-Enabled Stretchable Bioelectronics With Enhanced Radiative Cooling for Wound Management 高粘性液态金属界面可拉伸生物电子学与增强辐射冷却伤口管理

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202516990

Chunyan Cao, Jing Gu, Wanting Zhu, Haoyang Li, Rong Liu, Wei Zhang, Ruiqing Li, Dawei Li, Jue Ling, Mingzheng Ge, Xiong Wang, Xi Yao, Bin Fei

{"title":"Highly Adhesive Liquid Metal Interface-Enabled Stretchable Bioelectronics With Enhanced Radiative Cooling for Wound Management","authors":"Chunyan Cao, Jing Gu, Wanting Zhu, Haoyang Li, Rong Liu, Wei Zhang, Ruiqing Li, Dawei Li, Jue Ling, Mingzheng Ge, Xiong Wang, Xi Yao, Bin Fei","doi":"10.1002/adfm.202516990","DOIUrl":"https://doi.org/10.1002/adfm.202516990","url":null,"abstract":"Liquid metal (LM) bioelectronics are widely used in wearable devices and healthcare monitoring. However, engineering bioelectronics simultaneously exhibiting high stretchability, thermal management, and sufficient biocompatibility remains challenging. Here, a bioelectronic device containing an electrospun fiber mat embedded with LM-polyvinyl alcohol (PVA) composite and a passive radiative cooling (PRC) layer is shown to harvest the abovementioned properties. With the help of abundant dynamic hydrogen bonds, the PRC layer shows high adhesion energy of 71.2 J m−2 to the fiber mat, which provides the device with an enhanced radiative cooling performance, with a reduced Joule heat temperature of 17.1 °C under the applied voltage of 2.0 V. When stretched to 100% strain, their performance shows negligible change compared to the original state. The as-prepared devices also exhibit outstanding conductivity (1661.7 S cm−1), antimicrobial properties, high air permeability (111.4 mm s−1), and moisture permeability (4102.5 g m−2 day−1). With all these features, a skin-interfaced wound management e-patch is constructed, demonstrating high efficiency for accelerating wound healing under sunlight.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"67 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Multimodal Structural Color Graphics Based on Colloidal Photonic Microdome Arrays 基于胶体光子微球阵列的多模态结构彩色图形

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202520740

Jun‐Gu Kang, Hwan‐Young Lee, Chaerim Son, Hyeonbin Jo, Shin‐Hyun Kim

{"title":"Multimodal Structural Color Graphics Based on Colloidal Photonic Microdome Arrays","authors":"Jun‐Gu Kang, Hwan‐Young Lee, Chaerim Son, Hyeonbin Jo, Shin‐Hyun Kim","doi":"10.1002/adfm.202520740","DOIUrl":"https://doi.org/10.1002/adfm.202520740","url":null,"abstract":"A hybrid structural color platform is presented that integrates colloidal photonic crystals with microscale hemispherical domes to achieve dynamically reconfigurable, multi‐modal visual responses. By combining angle‐dependent Bragg reflection and curvature‐driven total internal reflection (TIR) interference, the system enables four distinct optical states that are reversibly switched by viewing angle and microdome orientation. The microdome‐on‐film architecture is fabricated by molding photocurable silica suspensions into hemispherical dimples, where optimal shear flow enhances colloidal ordering. The optical output—including hue, brightness, and spatial distribution—is programmable by tuning the silica particle diameter at an optimal volume fraction, as well as the radius and areal density of the microdomes. Using these design principles, complex, angle‐sensitive color graphics are demonstrated that remain concealed under normal observation from the film side and are revealed in three distinct modes: tilted observation from the film side, and both normal and tilted observation from the microdome side. This tunable response results from the interplay between periodic nanoscale ordering and mesoscale curvature, providing fundamental insights into a robust and programmable photonic system. The strategy offers a scalable, lithography‐compatible route to functional structural coloration and opens new possibilities for applications in smart labels, anti‐counterfeiting technologies, and tunable optical devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"18 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Dual Electric Fields Enrich and Stabilize Intermediates for Efficient Electrochemical CO2 Reduction to Multi‐Carbon Products 双电场富集和稳定中间体，用于高效电化学CO2还原成多碳产品

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202517674

Feng Xie, Shaoqi Zhan, Zihan You, Jiao Lan, Linghu Meng, Wei Zheng, Yuanguo Chen, Ming Peng, Yongwen Tan

{"title":"Dual Electric Fields Enrich and Stabilize Intermediates for Efficient Electrochemical CO2 Reduction to Multi‐Carbon Products","authors":"Feng Xie, Shaoqi Zhan, Zihan You, Jiao Lan, Linghu Meng, Wei Zheng, Yuanguo Chen, Ming Peng, Yongwen Tan","doi":"10.1002/adfm.202517674","DOIUrl":"https://doi.org/10.1002/adfm.202517674","url":null,"abstract":"Electrochemical reduction of CO2, a technology with great potential for renewable energy storage and climate change mitigation, depends on critical C─C coupling steps in CO2RR to ensure efficient high‐value hydrocarbon production. In this work, a local interface electric field and a tip‐induced electric field are constructed on Ag‐embedded Cu nanoneedle arrays to enhance the concentration of the *CO intermediate and regulate the adsorption of key intermediates, respectively. This optimization of the reaction microenvironment promotes the deep reduction of the *CO intermediate into multi‐carbon products (C2+), with a faradaic efficiency of 83.7% and a C2+ local current density of −526 mA cm−2 within gas‐fed flow cells. Experimental evidence and simulations validate that the interface electric field of the Cu‐Ag bimetallic catalyst increased surface *CO coverage, substantially lowering the formation barrier for *CHO intermediate, and the tip‐induced electric field that can stabilize *CO intermediate and suppress hydrogen evolution, promoting the C─C coupling process. The formation of the dual electric fields profoundly induced local environments and ultimately, the dominant C2+ product, which offers significant design guidelines for adjusting the supply and demand balance of reaction intermediates.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"53 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Sulfone-Functionalized Covalent Heptazine Polymeric Networks for Selective CO2 Photoreduction in Water: Mechanistic Insights into Sacrificial Donor-Dependent Selectivity 水中选择性CO2光还原的砜功能化共价七嗪聚合物网络：牺牲供体依赖选择性的机理见解

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202520764

Neha Saini, Amit Kumar, Bhawna Kamboj, Manvi Sachdeva, Himanshu Bhatt, Hirendra N. Ghosh, Dibyajyoti Ghosh, Kamalakannan Kailasam

{"title":"Sulfone-Functionalized Covalent Heptazine Polymeric Networks for Selective CO2 Photoreduction in Water: Mechanistic Insights into Sacrificial Donor-Dependent Selectivity","authors":"Neha Saini, Amit Kumar, Bhawna Kamboj, Manvi Sachdeva, Himanshu Bhatt, Hirendra N. Ghosh, Dibyajyoti Ghosh, Kamalakannan Kailasam","doi":"10.1002/adfm.202520764","DOIUrl":"https://doi.org/10.1002/adfm.202520764","url":null,"abstract":"The urgent need to mitigate CO2 emissions and develop sustainable energy alternatives has driven extensive research into photocatalytic CO2 reduction. In this study, a rationally designed sulfone-functionalized covalent heptazine polymeric networks (HSF) that achieves highly efficient and selective CO2 photoreduction in pure water is reported. The introduction of sulfone units enhances photogenerates charge separation, optimizes CO2 adsorption, and improves protonation properties, leading to a remarkable CO production rate in pure water with >99% selectivity under visible light irradiation. An exceptionally high apparent quantum yield (AQY) of 32.13% at λ = 400 nm has been achieved- the highest ever reported to date for any metal-free photocatalyst. Intriguingly, by introducing triethylamine (TEA) as a sacrificial electron donor, the product selectivity shifts from CO to CH4, achieving 80% CH4 selectivity. Mechanistic insights from in situ transient absorption spectroscopy and density functional theory (DFT) calculations reveal that the sulfone moiety plays a pivotal role in facilitating charge carrier dynamics and modulating the adsorption configuration of CO2. Furthermore, it shows that TEA not only acts as a hole scavenger but also functions as a proton transfer agent, enabling efficient protonation and the stepwise reduction of *CO to CH4.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"4 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Modular Integration of Self-Adjuvanting mRNA Delivery with Real-Time Vaccine Efficacy Tracking for Timely Optimization of Cancer Immunotherapy 自调节mRNA传递与实时疫苗疗效跟踪的模块化集成，以及时优化癌症免疫治疗

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-29 DOI: 10.1002/adfm.202511463

Keyang Li, Danhua Zhou, Fei Li, Zhen Li, Shaobin Wu, Yanhui Li, Shasha He, Huayu Tian

{"title":"Modular Integration of Self-Adjuvanting mRNA Delivery with Real-Time Vaccine Efficacy Tracking for Timely Optimization of Cancer Immunotherapy","authors":"Keyang Li, Danhua Zhou, Fei Li, Zhen Li, Shaobin Wu, Yanhui Li, Shasha He, Huayu Tian","doi":"10.1002/adfm.202511463","DOIUrl":"https://doi.org/10.1002/adfm.202511463","url":null,"abstract":"Messenger RNA (mRNA) vaccines revolutionize cancer immunotherapy, offering powerful tools to elicit precise, antigen-specific immune responses. However, the limited efficiency of current mRNA delivery systems and the lack of real-time immune monitoring tools hinder their full therapeutic potential. In this study, a modular platform that integrates a self-adjuvanting mRNA delivery system with a self-targeting vaccine efficacy reporter (VER), allowing for optimized therapeutic regulation in real-time is developed. This platform utilizes peptide-lipid nanoparticle (PLNP) incorporating cathepsin B-activatable melittin lipidoid to deliver mRNA encoding ovalbumin (mOVA), which triggers robust immune activation through the STING pathway, significantly enhancing both transfection efficiency and vaccine potency. The VER probe features a leucine-caged near-infrared fluorescent moiety designed to detect antigen presentation by exploiting endoplasmic reticulum aminopeptidase 1 (ERAP1), a key enzyme upregulated during antigen processing. Following vaccination with PLNP/mOVA, ERAP1 activation leads to fluorescence emission by VER, enabling real-time, non-invasive tracking of immune activation. Through this modular integration, the system provides both self-adjuvanting mRNA delivery and precise immune activation reporting. This approach supports the timely optimization of therapeutic strategies in cancer immunotherapy, offering the potential for more effective and personalized vaccination and treatment regimens.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"53 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Reconstruction of the Surface for Efficient 3D/Quasi-2D Heterostructured Inverted Perovskite Solar Cells 高效三维/准二维异质结构倒置钙钛矿太阳能电池的表面重建

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-28 DOI: 10.1002/adfm.202517633

Renxuan Wang, Jiafan Zhang, Yang Cao, Nan Yan, Yanyan Li, Haoyi Zhang, Danyang Qi, Jiacheng Pi, Lu Zhang, Xingyu Gao, Yucheng Liu, Shengzhong (Frank) Liu, Jiangshan Feng

{"title":"Reconstruction of the Surface for Efficient 3D/Quasi-2D Heterostructured Inverted Perovskite Solar Cells","authors":"Renxuan Wang, Jiafan Zhang, Yang Cao, Nan Yan, Yanyan Li, Haoyi Zhang, Danyang Qi, Jiacheng Pi, Lu Zhang, Xingyu Gao, Yucheng Liu, Shengzhong (Frank) Liu, Jiangshan Feng","doi":"10.1002/adfm.202517633","DOIUrl":"https://doi.org/10.1002/adfm.202517633","url":null,"abstract":"Energy level misalignment-induced interfacial non-radiative recombination and interface defect-induced carrier transport loss are key factors limiting the power conversion efficiency (PCE) of perovskite solar cells. To address these issues, this work introduces 3-Piperidinecarboxamide (PDN) to reconstruct the surface of the 3D perovskite. PDN passivates both shallow and deep defects simultaneously, forming an n-type quasi-2D perovskite surface layer that enhances electron extraction and reduces the energy level barrier. Density functional theory (DFT) calculations reveal that the electron donor unit (R-C-NH) of PDN preferentially binds to undercoordinated Pb2+ defects sites on the perovskite (PVK) surface. The hydrogen bonding formed between the R-NH2 group of PDN and I− ions on the [PbI6]4− octahedra enhances the above binding capability. The device adopting this strategy achieves a champion PCE of 26.10%. Furthermore, unencapsulated PSCs also exhibits excellent stability, retaining 88% of the initial PCE retained after ≈1400 h at 25 °C under 30% humidity.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"4 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Advances in Stimuli-Responsive Organic Materials and Polymers toward Intelligent CO2 Capture 面向智能CO2捕获的刺激响应有机材料和聚合物研究进展

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-28 DOI: 10.1002/adfm.202520959

Jian Zhou, Marc Deissenroth-Uhrig, Markus Gallei

引用次数: 0

Reducing Exciton Binding Energy in 2D Covalent Organic Frameworks by Decreasing Layer Planarity 通过降低层平面度降低二维共价有机框架中的激子结合能

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-09-28 DOI: 10.1002/adfm.202516937

Qian Xu, Yutong Li, Zhihan Jin, Xuliang Yu, Fengliang Cao, Song Xue, Heyuan Liu, Manfred Wagner, Klaus Müllen, Linjie Zhi

{"title":"Reducing Exciton Binding Energy in 2D Covalent Organic Frameworks by Decreasing Layer Planarity","authors":"Qian Xu, Yutong Li, Zhihan Jin, Xuliang Yu, Fengliang Cao, Song Xue, Heyuan Liu, Manfred Wagner, Klaus Müllen, Linjie Zhi","doi":"10.1002/adfm.202516937","DOIUrl":"https://doi.org/10.1002/adfm.202516937","url":null,"abstract":"2D covalent organic frameworks (2D COFs) exhibit pronounced excitonic effects, which severely limit the yield of free charge carriers and photocatalysis performance. While attempts to mitigate this limitation are scarce, and convincing relationship between molecular structure and excitonic effects remains unclear. A straightforward design principle is presented for optimizing excitonic effects by reducing layer planarity, using pyrene-derived COFs as exemplary cases. Three pyrene-derived COFs are constructed from 4,4′,4″,4‴-(pyrene-1,3,6,8-tetrayl) tetraaniline (PyTTA) and terephthalaldehyde building blocks incorporating additional functional groups (─OH, ─H, and ─OCH3). Compared to the parent case (Py-H-COF), the ─OH groups introduce a layer locking effect through the presence of hydrogen bonds, whereas the ─OCH3 substituents facilitate local rotation out of the layer due to their large steric hindrance. Decreased layer planarity upon going from Py-OH-COF to Py-H-COF and to Py-OCH3-COF hampers local conjugation and, as shown by experimental and theoretical results, is accompanied by a marked decrease in exciton binding energy. This distortion, in turn, accelerates exciton dissociation and suppresses free carrier recombination. Accordingly, Py- OCH3-COF, the case with the lowest exciton binding energy (43.2 meV), demonstrates superior photocatalytic degradation of organic pollutants. These findings provide valuable insights for improved design of 2D COFs as high-performance photocatalysts.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"31 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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