Chemical Engineering Journal最新文献

Dynamic monitoring cell-free DNA using integrated diagnosis and therapy semi-implantable bioelectronics

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-03 DOI: 10.1016/j.cej.2025.162291

Haonan Wang, Bin Yang, Dong Li, Jilie Kong, Xueen Fang

{"title":"Dynamic monitoring cell-free DNA using integrated diagnosis and therapy semi-implantable bioelectronics","authors":"Haonan Wang, Bin Yang, Dong Li, Jilie Kong, Xueen Fang","doi":"10.1016/j.cej.2025.162291","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162291","url":null,"abstract":"Continuous measurement of macromolecular biomarkers in vivo could enable diverse implantable applications in personalized medicine. However, technical obstacles remain: current technologies are limited to only one-way tracking of increases or decreases in macromolecule levels and lack real-time feedback on disease progression. Here, we propose an integrated diagnosis-therapy sensing system for dynamic tracking of cell-free DNA and drug delivery, based on a semi-implantable indwelling needle modified with clustered regularly interspaced short palindromic repeats (CRISPR)-dCas9. The specific binding-dissociation sensing mechanism of CRISPR-dCas9 with target DNA on the surface under fluctuating blood flow is discussed in detail, with various reaction equilibrium constants. Owing to the matched mechanical properties and geometrical structure of the semi-implantable device, it shows the ability to withstand interference of 60 % fetal bovine serum, sensitivity of 300 fM, 3-day stability, and real-time feedback on target DNA level in animal models. For sepsis patients bearing Staphylococcus aureus, the biosensor exhibited clinical sensitivity and specificity of 92.3 % and 100 % respectively. It could enable dynamic monitoring of cell-free DNA in vivo and timely intervention for patients with acute syndromes such as sepsis in the intensive care unit (ICU).","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modulating the environment and metal choice doped in BC4N monolayer for carbon dioxide reduction: A computational study

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-03 DOI: 10.1016/j.cej.2025.162250

Bing Mei, Waqed H. Hassan, Dheyaa J. Jasim, Anjan Kumar, Chou-Yi Hsu, G.V. Siva Prasad, Bhanu Juneja, Muna Salih Merza, Ibrahim Mahariq, Abdulrahman A. Almehizia

{"title":"Modulating the environment and metal choice doped in BC4N monolayer for carbon dioxide reduction: A computational study","authors":"Bing Mei, Waqed H. Hassan, Dheyaa J. Jasim, Anjan Kumar, Chou-Yi Hsu, G.V. Siva Prasad, Bhanu Juneja, Muna Salih Merza, Ibrahim Mahariq, Abdulrahman A. Almehizia","doi":"10.1016/j.cej.2025.162250","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162250","url":null,"abstract":"The utilization of the carbon dioxide reduction reaction (CO2RR) through electrochemical means presents an effective approach for addressing the challenge posed by elevated carbon dioxide (CO2) emissions, facilitating carbon dioxide conversion into valuable end products. In current DFT investigation, a new approach involving the singular metal doping of BC4N electrocatalyst is highlighted. This catalyst demonstrates notable selectivity and durability in CO2RR. The study involved the exploration of different electrocatalysts by incorporating diverse transition metals such as Cu, Co, Zn, and Mn. Simulation findings from density functional theory demonstrated that the Co-doped BC4N electrocatalyst effectively adsorbs and triggers the activation of CO2. This efficiency was confirmed through analyses including crystal orbital Hamilton population, Bader charge, charge density difference (CDD), and partial density of states (DOS) assessments. Assessment of the threshold potential for CO2 reduction reaction has been determined to be −0.34 V, in contrast to hydrogen evolution reaction (HER) at 0.56 V, resulting primarily in production of formaldehyde. The catalyst exhibited a preference for CO2 reduction while concurrently inhibiting HER. The research indicates that the altered BC4N monolayer holds significant promise as a high-performance catalyst for CO2RR and offers crucial theoretical insights for developing effective CO2RR catalysts.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"35 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Triethoxysilane-enhanced graphene/carbon nanoparticles conductive network for multifunctional fabric electronics with pressure, temperature and strain sensing capabilities 三乙氧基硅烷增强型石墨烯/碳纳米粒子导电网络，用于具有压力、温度和应变传感功能的多功能织物电子器件

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-03 DOI: 10.1016/j.cej.2025.162254

Yunong Zhao, Jianhong Hao, Zihan Lin, Shaowen Mou, Shujing Feng, Fan Yao, Ziyuan Zhou, Zhitong Wang, Zhaobin Li, Xianghui Li, Xiaowen Zhu, Tianxu Zhang, Weiqiang Hong, Yongzheng Niu, Qi Hong, Xiaohui Guo

{"title":"Triethoxysilane-enhanced graphene/carbon nanoparticles conductive network for multifunctional fabric electronics with pressure, temperature and strain sensing capabilities","authors":"Yunong Zhao, Jianhong Hao, Zihan Lin, Shaowen Mou, Shujing Feng, Fan Yao, Ziyuan Zhou, Zhitong Wang, Zhaobin Li, Xianghui Li, Xiaowen Zhu, Tianxu Zhang, Weiqiang Hong, Yongzheng Niu, Qi Hong, Xiaohui Guo","doi":"10.1016/j.cej.2025.162254","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162254","url":null,"abstract":"Fabric or textile electronics have been widely explored for their excellent wearable properties and compatibility with human skin. While ensuring fine sensing performance, the multi-mode sensing ability of the sensor is also one of the trends in enriching its practical applications. Herein, triethoxysilane-enhanced graphene (GR)/carbon nanoparticles (CNPs) conductive network is proposed by the impregnation process to realize multifunctional fabric electronics with tri-mode sensing capabilities. The synergistic interaction between (3-aminopropyl) triethoxysilane (APTES) and silicone rubber (SR) enhances the adhesion between conductive network and the fabric substrate, thereby a robust sensing layer is formed. The fabric electronics has negative resistance signals across a range of strains (0–60 %) and different temperatures (23–70 °C). In terms of strain sensing, the fabric electronics can not only detect resistance signals in the full range (120 %) but also reproduce stable values within the 60 % strain range. In terms of temperature sensing, the fabric electronics has ultra-high sensitivity and linearity in the temperature range of 23–70 °C, and the negative temperature coefficient is −1.1868 °C−1. The fabric electronics can monitor human movements and gestures by connecting with other smart devices. By analyzing the relevant data, it can ascertain how individuals allocate their time doing computer work, exercise, and muscle stretching. The combination of multi-mode sensing functions in different situations proves that the fabric electronics can be applied in wearable monitoring and embodied perception. The low cost and high comfort of this sensor provide potential application scenarios for smart textiles.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"73 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High near-infrared reflection characteristics and energy-saving applications of Bi-doped LaAlO3 perovskite yellow pigment 双掺杂 LaAlO3 包晶黄色颜料的高近红外反射特性及节能应用

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162195

Cheng Cai, Yi Wu, Kangzhen Sun, Qiuli Fang, Pengzhai Li, Sheng Cui, Yin Zhang

{"title":"High near-infrared reflection characteristics and energy-saving applications of Bi-doped LaAlO3 perovskite yellow pigment","authors":"Cheng Cai, Yi Wu, Kangzhen Sun, Qiuli Fang, Pengzhai Li, Sheng Cui, Yin Zhang","doi":"10.1016/j.cej.2025.162195","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162195","url":null,"abstract":"To expand the application of traditional pigments in the field of energy conservation and environmental protection, high NIR-reflective La1−xBixAlO3 (x = 0, 0.1, 0.15, 0.2, 0.25) yellow pigments with perovskite structure were prepared by wet ball milling combined with the high temperature solid phase method. The synthesized pigments were analyzed and evaluated using powder X-ray diffraction, Raman spectroscopy, CIE 1976 L* a* b* color, and UV–Vis-NIR spectrophotometry standard. The research results indicate that La1−xBixAlO3 pigment doped with Bi3+ has a wider absorption band in the blue purple region, and as the amount of Bi3+ doping increases, the pigment gradually changes from white to yellow. When the doping amount of Bi is 0.15, La0.85Bi0.15AlO3 pigment shows particularly interesting results, good yellow color rendering effect and color saturation (L* = 70.72, a* = 5.08, b* = 43.79, c* = 44.09), especially, the pigment has a high near-infrared solar reflectance (R*) of 92.05 % and a high near-infrared reflectance of 98.95 %. La0.85Bi0.15AlO3 pigment has superior thermal insulation performance as a thermal insulation coating, and the pigment can maintain structural stability at high temperatures. EnergyPlus simulations show that for southern cities with more heat and less cold (Haikou, Guangzhou), the La0.85Bi0.15AlO3 coating used for the exterior surface of the model house can reduce the cooling energy consumption of the house. As a high near-infrared reflective material, it has good application prospects in the field of energy conservation and environmental protection.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"24 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergies of hydrated electron, carbon dioxide anions radicals and hydroxyl radicals for enhancing the decomposition and defluorination of perfluorohexanesulfonate

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162092

Chunyu Wang, Shizong Wang, Jianlong Wang, Shangwei Zhang, Qi Yang

{"title":"Synergies of hydrated electron, carbon dioxide anions radicals and hydroxyl radicals for enhancing the decomposition and defluorination of perfluorohexanesulfonate","authors":"Chunyu Wang, Shizong Wang, Jianlong Wang, Shangwei Zhang, Qi Yang","doi":"10.1016/j.cej.2025.162092","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162092","url":null,"abstract":"Removal of perfluorinated compounds (PFCs) from water remains a critical challenge in water treatment. This study introduces an ionizing radiation system coupled with formate (IR/HCOO–) for the efficient defluorination and degradation of perfluorohexane sulfonate (PFHxS). These results demonstrate that the degradation and defluorination rates of PFHxS increase with higher absorbed doses and HCOO– concentrations. At an initial PFHxS concentration of 5 mg/L, HCOO– concentration of 10 mM, and absorbed dose of 20 kGy, the decomposition and defluorination efficiencies reached 24.8 % and 18.9 %, respectively. High-resolution mass spectrometry revealed that PFHxS degradation primarily occurred through H/F exchange, hydroxylation, desulfurization, and carbon dioxide addition. Mechanistic analysis identified hydrated electrons as the key species initiating PFHxS desorption, with subsequent synergistic contributions from hydrated electrons, hydroxyl radicals, and carbon dioxide radicals, driving deep defluorination and decomposition. The IR/HCOO– system was effective over a pH range of 5–11 and demonstrated strong resistance to interference from inorganic anions. This study is the first to elucidate the synergistic roles of hydrated electrons, hydroxyl radicals, and carbon dioxide radicals in PFHxS defluorination and degradation and provides a promising approach for removing PFCs from water.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"183 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound-powered piezocatalytic nanomotors with dual-mode synergistic/cascade propulsion reprogram hypoxic tumor-associated macrophages for enhanced cancer immunotherapy

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162107

Ke Ma, Junliang Dong, Zelong Chen, Ruoshui Li, Shuang Chao, Xuan Hu, Yuxin Pei, Xiaoyuan Chen, Wenjing Sun, Zhichao Pei

{"title":"Ultrasound-powered piezocatalytic nanomotors with dual-mode synergistic/cascade propulsion reprogram hypoxic tumor-associated macrophages for enhanced cancer immunotherapy","authors":"Ke Ma, Junliang Dong, Zelong Chen, Ruoshui Li, Shuang Chao, Xuan Hu, Yuxin Pei, Xiaoyuan Chen, Wenjing Sun, Zhichao Pei","doi":"10.1016/j.cej.2025.162107","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162107","url":null,"abstract":"The tumor-associated macrophages (TAMs) located in deep tumor hypoxic regions play pivotal roles in tumor progression, serving as a promising therapeutic target for cancer immunotherapy. However, the reprogramming of hypoxic TAMs is restricted by the poor penetration of TAMs-repolarizing agents in hypoxic areas. Herein, we have designed an ultrasound-powered piezocatalytic nanomotor, composed of quaternary ammonium chitosan (QCS)/hyaluronic acid (HA) coated Bi2MoO6-OH (BMO-OH) loaded with ultrasound-sensitive nitric oxide (NO) donor, termed as BQHN. This nanomotor is capable of dual-mode synergistic/cascade propulsion to achieve efficient tumor penetration and reprogramming of hypoxic TAMs, thereby enhancing cancer immunotherapy. Upon activation by ultrasound, BQHN generates NO bubbles and undergoes self-electrophoresis to achieve dual-mode synergistic propulsion. Meanwhile, the high pressure produced by NO cavitation collapse can further induce piezocatalysis, leading to enhanced self-electrophoresis for dual-mode cascade propulsion. In vitro experiments have demonstrated that BQHN exhibit superior motility, effectively modulating macrophages polarization through piezoelectric effect-mediated electrical signals and released NO. In vivo studies have shown that the rapid movement of BQHN significantly enhances penetration into hypoxic regions, resulting in substantial accumulation in hypoxic areas to effectively stimulate hypoxic TAMs. This enables efficient repolarization of hypoxic TAMs towards the M1-phenotype, ultimately leading to effective tumor regression. This work introduces a new paradigm for ultrasound-actuated nanomotors and a unique strategy for reprogramming TAMs to enhance cancer immunotherapy.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"38 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting flexible thermal management and absorption-dominant electromagnetic shielding through surface engineering of electrochemically-exfoliated graphene

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162262

Xiaqing Meng, Jun Wang, Qian Chen, Zicheng Xuan, Zelin Wu, Yan Zhang, Xifan Chen, Junying Wang, Junzhong Wang

{"title":"Boosting flexible thermal management and absorption-dominant electromagnetic shielding through surface engineering of electrochemically-exfoliated graphene","authors":"Xiaqing Meng, Jun Wang, Qian Chen, Zicheng Xuan, Zelin Wu, Yan Zhang, Xifan Chen, Junying Wang, Junzhong Wang","doi":"10.1016/j.cej.2025.162262","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162262","url":null,"abstract":"The miniaturization, intense integration, and high-density power of modern electronic and energy devices necessitate extensive management of thermal energy and electromagnetic waves. Creating lightweight, stable, and multifunctional materials to meet these demands remains a challenge. Here, we describe preparing graphene aerogel through the condensation dehydration of hydrophilic polymers and further forming scenario-adaptive multifunctional films through 2500 °C heat treatment and paraffin hybridization. The graphene materials exhibit extensive thermal management with high performances covering high thermal conductivity (up to 76.4 W·m−1·K−1), superior heat dissipation, tunable electro-thermal conversion, cycling heat storage, and flame retardancy. Additionally, they provide tunable and effective electromagnetic interference shielding performances with high specific shielding effectiveness (up to an average of 91.6 dB, maximum of 123 dB) in a wide frequency range, featuring anti-corrosive absorption-dominant shielding across the X-band, Ku-band, and K-band. Surface engineering of graphene including tuning surface chemical groups and interface couplings contributes to flexible thermal management and electromagnetic shielding. This work might offer a green strategic approach to developing extensive thermal and electromagnetic wave managements of graphene materials.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"224 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving efficient phosphorescence of carbon dots via a synergistic enhancement strategy for bright field anti-counterfeiting

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162102

Jing Tan, Daiqi Yang, Chunyi Lu, Yi Li, Xingyu Gu, Peng Sha, Songnan Qu, Xin Wang, Lipei Fu, Qijun Li

{"title":"Achieving efficient phosphorescence of carbon dots via a synergistic enhancement strategy for bright field anti-counterfeiting","authors":"Jing Tan, Daiqi Yang, Chunyi Lu, Yi Li, Xingyu Gu, Peng Sha, Songnan Qu, Xin Wang, Lipei Fu, Qijun Li","doi":"10.1016/j.cej.2025.162102","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162102","url":null,"abstract":"Phosphorescent materials that exhibit high efficiency and intensity are crucial for practical applications. In this study, we devised a novel strategy to enhance carbon dots (CDs) phosphorescence based on a crosslink-enhanced emission (CEE) and layer-by-layer self-assembly (LBL) synergistic enhancement design. The seed CDs are initially functionalized with cationic polymers on their surfaces, followed by assembly with negatively charged matrices to enhance their phosphorescence. This leads to a significant phosphorescence intensity enhancement by a factor of more than 88, enabling visual readability even in bright fields. Their lifetime is prolonged from 0.13 to 0.41 s and the maximum phosphorescence quantum yield reached up to 27.2 %. Detailed investigations revealed that CEE and LBL significantly inhibited molecular vibrations and protected the triplet excitons of CDs from oxygen quenching, enhancing phosphorescence emission. The loading capacity of the CDs in the matrix was significantly enhanced owing to the uniform dispersion induced by the electrostatic interactions between CDs and the substrate. Furthermore, we envision potential applications of these CDs for anti-counterfeiting and crack detection in bright fields.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"23 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration-enhanced RF-biased inductively coupled plasma fluidized bed for depositing diamond-like carbon on powders

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162235

Zhijun Ai, Zhicheng Wu, Qingzhe Zhu, Zhengjie An, Le Feng, Qiaogen Zhang

引用次数: 0

π-Conjugated molecule-based self-assembled monolayers enable high-efficiency pure-blue perovskite LEDs

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-02 DOI: 10.1016/j.cej.2025.162261

Hyo Jae Lee, Jae Woong Jung

{"title":"π-Conjugated molecule-based self-assembled monolayers enable high-efficiency pure-blue perovskite LEDs","authors":"Hyo Jae Lee, Jae Woong Jung","doi":"10.1016/j.cej.2025.162261","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162261","url":null,"abstract":"The hole-injecting interface is crucial for achieving high optoelectronic performance of perovskite light-emitting diodes (PeLEDs), as it lowers the energy barrier between the anode and perovskite emitting layers (EMLs), facilitates efficient hole-carrier extraction, suppresses recombination, and supports growth of highly crystalline perovskite EMLs. However, the widely used hole injection layer (HIL), poly(3,4-ethylenedioxythiophene):polystyrene sulfonic acid (PEDOT:PSS), has inherent limitations such as low work function, high acidity, and susceptibility to corrosion, the self-assembled monolayers (SAMs) with functional groups have emerged as promising alternatives to PEDOT:PSS for hole-injecting interfaces. In this study, 4PADCB, a phosphonic acid-based SAM with extended π-conjugation, is applied to prepare high-performance pure blue PeLEDs. The 4PADCB provides robust interfacial properties including excellent electrical and morphological characteristics by close interaction with perovskite lattices, demonstrating pure-blue electroluminescence of PeLEDs at 472 nm with a low turn-on voltage (3.20 V) and a peak external quantum efficiency (EQE) of 4.26 %, a fourfold improvement over PEDOT:PSS-based control devices. This enhancement is attributed to reduced interfacial defects and improved carrier injection balance, leading to efficient radiative recombination kinetics. These results highlight the potential of highly conjugated SAMs as innovative components for hole-injecting interfaces, enabling significant advances in PeLED efficiency and stability.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"19 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0