ACS Applied Optical Materials最新文献_第2页

Stick-Shaped Multilayer Sensors Containing Fluorescent Imprinted Polymers: Promising Devices for Portable Fluoride Sensing in Water 含有荧光印迹聚合物的棒状多层传感器：有前途的便携式水中氟化物传感装置

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-30 DOI: 10.1021/acsaom.5c00231

Juan Rodríguez, Delfina Quiñone, Margarita Brovetto, Ricardo Faccio, Moises Knochen*, Julia Torres* and Nicolás Veiga*,

{"title":"Stick-Shaped Multilayer Sensors Containing Fluorescent Imprinted Polymers: Promising Devices for Portable Fluoride Sensing in Water","authors":"Juan Rodríguez, Delfina Quiñone, Margarita Brovetto, Ricardo Faccio, Moises Knochen*, Julia Torres* and Nicolás Veiga*, ","doi":"10.1021/acsaom.5c00231","DOIUrl":"https://doi.org/10.1021/acsaom.5c00231","url":null,"abstract":"Fluoride offers both beneficial and harmful health effects depending on its concentration, highlighting the need for low-cost, portable sensors compatible with deployable technologies. Despite recent progress, achieving high anion selectivity and full water compatibility remains a major challenge in fluoride sensing. Here, we synthesized and evaluated three novel arene-containing urea/thiourea-based compounds as optical probes for fluoride detection in water. The most effective, a pyrene-derived chemosensor, showed high sensitivity but low selectivity toward chloride(2). To overcome this, it was embedded into a fluoride-imprinted polymer (2P), enhancing selectivity in aqueous suspension at the expense of sensitivity. To improve performance and enable sensor alignment within the optochemical system, 2P was incorporated into a stick-shaped multilayer device (2PS). A comparable device using a previously developed anthracene-based polymeric sensor (1PS) was also prepared. Both devices, mounted diagonally on a cuvette for fluorescence measurements, exhibited higher sensitivity (5242 and 3156 M–1, respectively) than the polymers in suspension and showed excellent stability across multiple cycles. The 2PS device emerged as the top performer, combining very high fluoride selectivity, rapid response, excellent recovery in real samples (102 ± 6%), and a working range (164–942 μM) aligned with international guidelines, making it a promising tool for aqueous fluoride monitoring.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1835–1849"},"PeriodicalIF":3.8,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding and Mitigating the Degradation of Optical Emission from Exfoliated Ga2Se2 脱落Ga2Se2光发射退化的认识与缓解

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-29 DOI: 10.1021/acsaom.5c00195

Lottie L. Murray, Matthew P. Whalen, Aqiq Ishraq, Collin Maurtua, Mingyu Yu, Stephanie Law, John Xiao, Chitraleema Chakraborty and Matthew Doty*,

{"title":"Understanding and Mitigating the Degradation of Optical Emission from Exfoliated Ga2Se2","authors":"Lottie L. Murray, Matthew P. Whalen, Aqiq Ishraq, Collin Maurtua, Mingyu Yu, Stephanie Law, John Xiao, Chitraleema Chakraborty and Matthew Doty*, ","doi":"10.1021/acsaom.5c00195","DOIUrl":"https://doi.org/10.1021/acsaom.5c00195","url":null,"abstract":"Gallium selenide (Ga2Se2) is a promising 2D material for use in both classical and quantum photonic device technologies because it transitions to a direct bandgap as a function of both increasing film thickness and applied strain. However, the optical emission from thin exfoliated Ga2Se2 films has been reported to degrade rapidly, which would severely limit its usefulness for optoelectronic applications. We perform a systematic time-dependent study of the intensity of photoluminescence emitted from exfoliated Ga2Se2 as a function of both the sample preparation and storage conditions. We find that the degradation of optical properties is substantially slower than previously reported. We further find that the degradation is a surface effect that begins upon transient exposure to air and that the degradation cannot be mitigated by any reasonable sample storage conditions. Finally, we show that the optical degradation can be eliminated by utilizing hexagonal boron nitride (h-BN) encapsulation in a glovebox to protect the Ga2Se2 from even momentary air exposure.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1757–1765"},"PeriodicalIF":3.8,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZnSe/ZnS Core/Shell Quantum Dots with Narrow Emission Bands for QLED Displays QLED显示用窄发射带ZnSe/ZnS核/壳量子点

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-28 DOI: 10.1021/acsaom.5c00207

Lei Chen*, Hui Jiang, Fanghai Liu, Syed Aamir Hussain, Hossein Chamkouri, Yang Song, Ping Chen, Asad Ali* and Xianghua Wang*,

{"title":"ZnSe/ZnS Core/Shell Quantum Dots with Narrow Emission Bands for QLED Displays","authors":"Lei Chen*, Hui Jiang, Fanghai Liu, Syed Aamir Hussain, Hossein Chamkouri, Yang Song, Ping Chen, Asad Ali* and Xianghua Wang*, ","doi":"10.1021/acsaom.5c00207","DOIUrl":"https://doi.org/10.1021/acsaom.5c00207","url":null,"abstract":"As an alternative to toxic Cd-based blue light-emitting quantum dots (QDs) and chemically unstable perovskite ones, heavy-metal-free and stable ZnSe QDs have great potential for quantum dot light-emitting diode (QLED) displays. Through overcoming the challenge of controllable synthesis of ZnSe QDs with desirable properties, this work reported the synthesis of super-narrow-band blue-emitting ZnSe/ZnS core/shell QDs with full width at half-maximum (FWHM) of photoluminescence/electroluminescence as narrow as 19/20 nm, peaked at 446/449 nm, respectively. The crystallization of the core/shell QDs was well controlled by systematic optimization on the molar ratios of cations to anions and the amount of precursor addition. The coating shell of ZnS, which has a wider band gap than ZnSe, could effectively suppresses the fluorescence tail in the emission spectrum that is caused by defects on the ZnSe core surface, narrowing the FWHM of the emission spectrum and increasing the fluorescence quantum yield of ZnSe/ZnS core/shell QDs. The prepared QLED using ZnSe/ZnS core/shell QDs exhibits superior color purity, particularly suitable for display applications. This work opens up a new route to synthesizing heavy-metal-free ultra-narrow-band blue-emitting QDs.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1800–1809"},"PeriodicalIF":3.8,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Smart Fluorescent Sensor: Gadolinium MOF for Highly Selective Detection of Explosives 智能荧光传感器：用于爆炸物高选择性检测的钆MOF

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-28 DOI: 10.1021/acsaom.5c00155

Madhu Babu Kanakala*, Sachin Ashok Bhat, Abhishek Kumar and Channabasaveshwar V. Yelamaggad*,

{"title":"Smart Fluorescent Sensor: Gadolinium MOF for Highly Selective Detection of Explosives","authors":"Madhu Babu Kanakala*, Sachin Ashok Bhat, Abhishek Kumar and Channabasaveshwar V. Yelamaggad*, ","doi":"10.1021/acsaom.5c00155","DOIUrl":"https://doi.org/10.1021/acsaom.5c00155","url":null,"abstract":"The development of highly sensitive and selective sensors for detecting high-energy materials (HEMs) is critical for national security and environmental monitoring. In this study, a fluorescent trivalent lanthanide metal–organic framework (MOF), Gd(DAB), was synthesized and systematically characterized for its ability to function as a turn-off photoluminescent sensor for nitro-based explosives. The structural and electronic properties of the MOF were investigated using spectroscopic and microscopic techniques, confirming its high stability, tunable luminescence, and strong metal–ligand interactions. Fluorescence quenching studies demonstrated that Gd(DAB) exhibits exceptional sensitivity toward electron-deficient explosives, particularly trinitrophenol (TNP) and trinitrotoluene (TNT), and other heterocyclic nitro-based explosives with Stern–Volmer (SV) analysis, indicating the highest quenching efficiency for nitroaromatics. Benesi–Hildebrand (BH) analysis further confirmed the formation of a ground-state charge-transfer complex with TNP, suggesting a static quenching mechanism at low quencher concentrations. At higher concentrations, a combination of static and dynamic quenching pathways was observed, as evidenced by fluorescence lifetime measurements. The mechanism of quenching was primarily attributed to electron transfer interactions between the electron-rich MOF and electron-deficient nitroaromatic compounds, effectively disrupting the ligand-to-metal charge transfer (LMCT) process and leading to fluorescence suppression. The findings establish Gd(DAB) as a highly efficient and selective luminescent sensor for HEM detection, offering a rapid, cost-effective, and sensitive approach for real-world applications in explosive sensing.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1731–1738"},"PeriodicalIF":3.8,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Scintillation Efficiency and Reduced Afterglow in Gd2O2S:Pr Ceramics via La-Induced Structural Disorder and Liquid-Phase Synthesis 利用la诱导结构紊乱和液相合成技术提高Gd2O2S:Pr陶瓷的闪烁效率和减少余辉

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-27 DOI: 10.1021/acsaom.5c00218

Ran Lu, Zhaohua Luo*, Yijun Zhuang, Huachun Tang, Yongfu Liu and Jun Jiang*,

{"title":"Enhanced Scintillation Efficiency and Reduced Afterglow in Gd2O2S:Pr Ceramics via La-Induced Structural Disorder and Liquid-Phase Synthesis","authors":"Ran Lu, Zhaohua Luo*, Yijun Zhuang, Huachun Tang, Yongfu Liu and Jun Jiang*, ","doi":"10.1021/acsaom.5c00218","DOIUrl":"https://doi.org/10.1021/acsaom.5c00218","url":null,"abstract":"Pr-doped gadolinium oxysulfide (Gd2O2S:Pr, GOS:Pr) ceramic scintillators are widely utilized in medical CT detectors and security screening systems. However, their lower scintillation efficiency compared to emerging gadolinium-based garnet scintillators, combined with the inefficiencies and contamination risks associated with traditional solid-state synthesis methods, limit the advantages of their continued application. To address these challenges, we developed a liquid-phase synthesis method for GOS:Pr powders incorporating Gd–La substitution. This approach enables the production of high-density ceramics through pressure-less sintering and hot isostatic pressing, thereby improving both processing efficiency and material integrity. The introduction of La3+ and the associated La–S bond formation result in increased structural disorder, leading to a 21% enhancement in scintillation efficiency and a 27% reduction in afterglow at 100 ms. These improvements are crucial for reducing patient radiation exposure and enhancing image quality in CT imaging, while maintaining the practical advantages of GOS:Pr scintillators.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1821–1827"},"PeriodicalIF":3.8,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ACS Applied Optical Materials Pub Date : 2025-07-25

Shruti Sajwan, Malika Singhal, Pradeep Kumar Vishwakarma, Naveen Chauhan and Sunil Kumar Singh*,

引用次数: 0

ACS Applied Optical Materials Pub Date : 2025-07-25

Xun Li*, Chao Shan, Kai Chen, Chen chen Li, Li feng Wang, Yi nan Wang, Yu Tan and Ming Li*,

引用次数: 0

Charge Dynamics as Probed by Small Signal-Modulated Photocurrent and Impedance Spectroscopy of Metal Vanadate Semiconductors and Alloys 用小信号调制光电流和阻抗谱探测金属钒酸盐半导体和合金的电荷动力学

IF 3.8

ACS Applied Optical Materials Pub Date : 2025-07-25 DOI: 10.1021/acsaom.5c00154

Juan Carlos Expósito-Gálvez, Abhishek Rawat, Krishnan Rajeshwar* and Gerko Oskam*,

{"title":"Charge Dynamics as Probed by Small Signal-Modulated Photocurrent and Impedance Spectroscopy of Metal Vanadate Semiconductors and Alloys","authors":"Juan Carlos Expósito-Gálvez, Abhishek Rawat, Krishnan Rajeshwar* and Gerko Oskam*, ","doi":"10.1021/acsaom.5c00154","DOIUrl":"https://doi.org/10.1021/acsaom.5c00154","url":null,"abstract":"This study presents the combined and complementary use of two techniques, namely, intensity modulated photocurrent spectroscopy (IMPS) and photoelectrochemical impedance spectroscopy (PEIS) for the study of partially or wholly replacing copper with an alkaline earth metal (Mg, Ca) in a metavanadate compound matrix (MV2O6). To this end, the three reference compounds (CuV2O6, CaV2O6, MgV2O) and two alloy compositions (Mg0.1Cu0.9V2O6 and Ca0.1Cu0.9V2O6), obtained from a solution combustion technique, were screen-printed on fluorine-doped tin oxide glass (FTO) substrates. Wavelength discrimination for optical excitation of these semiconductor samples was provided by using high-power LED (front-side) illumination with different wavelengths, UV (λ = 370 nm), blue (λ = 455 nm), green (λ = 535 nm), and red (λ = 670 nm). A nonunity photogeneration yield of mobile charge carriers was seen in a trend reminiscent of previous data on binary oxides or even for other types of ternary copper oxides from other laboratories. The dynamic aspects of charge transfer and carrier recombination are discussed using the combined IMPS-PEIS data along with other optical (e.g., diffuse reflectance spectroscopy) and photoelectrochemical data.","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 8","pages":"1684–1695"},"PeriodicalIF":3.8,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ACS Applied Optical Materials Pub Date : 2025-07-25

Xinyu Yin, Xiaoyu Zhang, Adewale Joseph Babatunde, Pranab Sarker, Xiaozhou Zheng, Tao Wei and Qiuming Yu*,

引用次数: 0

ACS Applied Optical Materials Pub Date : 2025-07-25

Xin Chang, Mike Pivnenko, Weijie Wu, Yayan Tan, Pawan Shrestha* and Daping Chu*,

引用次数: 0