{"title":"Artificial Receptor Enabled Interferometric Sensing Platform for Selective Melamine Detection","authors":"Binod Kumar Patra, Avijit Kumar, Rajan Jha","doi":"10.1021/acsaom.6c00335","DOIUrl":"https://doi.org/10.1021/acsaom.6c00335","url":null,"abstract":"<p>Food adulterants due to harmful chemicals refer to aserious globalconcern for food safety and people’s health, which makes thedetection and monitoring of food quality essential nowadays. Opticalsensors with high sensitivity, reconfigurability, and stability haveplayed an important role in advancing biochemical sensors for theselective detection of target food adulterants. However, many of thesesensors suffer from limited selectivity and are less sensitive toexternal stimuli. Hence, these limitations are overcome by an efficientapproach for developing a compact, highly sensitive biosensing systemthat can be achieved by combining optical fiber-based interferometrywith an artificial recognition element. Here, a biosensor has beendeveloped for detecting toxic food adulterant melamine by functionalizingan inline interferometric transducer with MIP. The sensor has a broaddetection range of 10<sup>–10</sup> M to 10<sup>–3</sup> M concentration of melamine sample solution with a sensitivity of8.8 × 10<sup>9</sup> nm/M. The sensor offers a remarkable LODof 6.4 pM for the melamine sample. The proposed sensor facilitatesa significant working potential for several practical applications,including food safety inspections, clinical sectors, and manufacturingindustries.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2618–2628"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027882","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}
{"title":"Luminescent Metal–Organic Frameworks for pH Sensing: A Critical Overview from Molecular Design to Point-of-Care Diagnostics","authors":"Foroozan Feizi, Mojtaba Shamsipur, Mohammad-Mobin Maneshti, Farnoosh Moradi, Parsa Mohammadi-Khanghahi-Vasati, Fahimeh Hasan-Khani, Narges Amiri-Nejad","doi":"10.1021/acsaom.6c00428","DOIUrl":"https://doi.org/10.1021/acsaom.6c00428","url":null,"abstract":"<p>ConventionalpH probes suffer from mechanical fragility,dye leaching,aggregation-caused quenching, and single-intensity dependence. Luminescentmetal–organic frameworks (LMOFs) address these limitationsthrough structural tunability, multiple emission centers, permanentporosity, and ratiometric self-calibration. This review is organizedaround three axes: emission origin, signal output mode, and responsemechanism. LMOF advantages are critically examined alongside limitationsincluding guest leaching, limited reversibility, 40–60% sensitivityloss in complex matrices, and insufficient toxicity data. Analysisof over 60 systems reveals an inverse sensitivity–stabilitytrade-off and establishes design rules across pH 1–14. Ratiometricmixed-lanthanide and dye@MOF architectures are highlighted for self-calibration,visible color changes, and smartphone readout. We identify four researchdirections: flexible wearables, smartphone diagnostics, machine learning-assisteddiscovery, and externally programmable MOFs. We propose the minimumreporting standard (MRS-MOF-pH) reporting standard and advocate forsafe-by-design synthesis using endogenous metals (Zn<sup>2+</sup>,Mg<sup>2+</sup>, Fe<sup>3+</sup>). This review provides a unifieddesign framework, an application-driven decision matrix, and a translationalroadmap for point-of-care diagnostics, environmental monitoring, andfood safety.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2503–2530"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027902","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}
Mei-Ling Cheng, Lu Liu, Jia-Yu Lin, Jia-Hui Li, Chen Wang, Zhen Bao
{"title":"Structurally Diverse Zn/Cd Coordination Polymers for Recyclable Fluorescence Sensing of Fe3+ in Water","authors":"Mei-Ling Cheng, Lu Liu, Jia-Yu Lin, Jia-Hui Li, Chen Wang, Zhen Bao","doi":"10.1021/acsaom.6c00390","DOIUrl":"https://doi.org/10.1021/acsaom.6c00390","url":null,"abstract":"<p>Structurally diverse luminescent zinc/cadmium coordinationpolymers(LCPs) based on the π-conjugated bis-imidazole ligand bipmowere successfully constructed, namely, [Zn(bipmo)(NO<sub>3</sub>)<sub>2</sub>]<sub>n</sub> (<strong>1</strong>), [Cd(bipmo)(NO<sub>3</sub>)<sub>2</sub>]<sub>n</sub> (<strong>2</strong>), [Cd<sub>2</sub>(bipmo)(1,3-BDC)<sub>2</sub>(H<sub>2</sub>O)]<sub>n</sub>·2nH<sub>2</sub>O (<strong>3</strong>), and [Cd<sub>3</sub>(bipmo)<sub>2</sub>(1,4-BDC)<sub>3</sub>]<sub>n</sub>·2nCH<sub>3</sub>OH (<strong>4</strong>) (bipmo = bis(4-(1H-imidazol-1-yl)phenyl)methanone,1,3-H<sub>2</sub>BDC = isophthalic acid, and 1,4-H<sub>2</sub>BDC= terephthalic acid). Owing to the tunable coordination behavior ofthe ligand and the synergistic effects of auxiliary ligands, theseLCPs exhibit remarkable structural diversity, ranging from a 1D chainand two distinct 2D networks to an unprecedented 3D framework witha point symbol of {4<sup>41</sup>·6<sup>4</sup>}. LCPs <strong>1</strong> and <strong>3</strong> were identified as selective and recyclablefluorescent probes for Fe<sup>3+</sup> in water, with detection limitsof 7.13 and 7.19 μM, respectively. Comparative investigationsreveal that structural diversity and the resulting accessibility ofuncoordinated donor sites play key roles in determining the fluorescencesensing behavior, providing insight into the structure–sensingrelationship in Zn/Cd coordination polymers. Furthermore, the fluorescencequenching originates from the synergistic effects of the inner filtereffect (IFE) and static quenching through ground-state interactionsbetween Fe<sup>3+</sup> and the uncoordinated ketonic oxygen in <strong>1</strong> or the uncoordinated imidazole nitrogen in <strong>3</strong>.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2675–2686"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027866","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}
{"title":"Bias-Tunable Dual-Mode Optoelectronic Device Based on a SiC/β-Ga2O3 Heterojunction for Photodetection and Optical Synapse","authors":"Zhixin Lin, Xiannian Shi, Meijie Yin, Jiao Xu, Teng Yun, Dengji Guo, Xujin Wang, Sudong Wu","doi":"10.1021/acsaom.6c00386","DOIUrl":"https://doi.org/10.1021/acsaom.6c00386","url":null,"abstract":"<p>Integrating ultraviolet photodetectionand persistent optical memoryin a single compact device is challenging because the two functionsrequire contrasting carrier-recovery dynamics. Here, we demonstratebias-only reconfiguration of a two-terminal SiC/β-Ga<sub>2</sub>O<sub>3</sub> heterojunction between a photodetector-like mode andan optoelectronic-synapse mode. An approximately 27 nm Ga<sub>2</sub>O<sub>3</sub> layer was deposited on n-type 4H-SiC by plasma-enhancedatomic layer deposition and crystallized into β-Ga<sub>2</sub>O<sub>3</sub> by postdeposition annealing at 700 °C. At biasvoltage <em>V</em><sub>D</sub> = 0.1 V under 254 nm illuminationat 30 μW/cm<sup>2</sup>, the device yields a responsivity (<em>R</em>) of 3.8 A/W, a photocurrent-to-dark-current ratio (<em>PDCR</em>) of 24, an external quantum efficiency (<em>EQE</em>) of 1.85 × 10<sup>3</sup>%, and a shot-noise-limited specificdetectivity (<em>D*</em>) of 3.0 × 10<sup>12</sup> Jones.At the same irradiance, the responsivity ratio <em>R</em><sub>254</sub>/<em>R</em><sub>380</sub> reaches 8.98, while thevisible-light response remains at the experimental background level,corresponding to a conservative lower bound of <em>R</em><sub>254</sub>/<em>R</em><sub>500</sub> > 100. At <em>V</em><sub>D</sub> ≥ 1.5 V, persistent photoconductivity dominates,enabling a paired-pulse-facilitation index of 156%, pulse-interval-controlledshort-term-to-long-term memory conversion, and associative learningunder dual-wavelength UV stimulation. Control-device, transient, structural,and spectroscopic results support a working model in which a weaktype-II alignment facilitates bias-regulated interfacial electrontransfer and defect-state recapture. These results establish a low-voltage,gate-free route toward compact, reconfigurable deep-UV sensors andneuromorphic vision devices.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2652–2664"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149028009","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}
{"title":"Multistimuli-Responsive Emissive Liquid Crystals with High-Contrast Mechanochromic and Solvatochromic Emission Based on Cyclometalated Platinum(II) Complexes with Fluoroalkylated Ligands","authors":"Theodora Ilincă, Monica Iliş, Mihail Secu, Cristina Tăbleţ, Victoriţa Tecuceanu, Viorel Cîrcu","doi":"10.1021/acsaom.6c00363","DOIUrl":"https://doi.org/10.1021/acsaom.6c00363","url":null,"abstract":"<p>Luminescent liquid crystals based on cyclometalated Ptcomplexeshave attracted considerable interest owing to their excellent emissionproperties that can be tuned in a targeted manner. Herein, we proposea robust approach for a simple design of multistimuli-responsive liquid-crystallinePt complexes. Seven square-planar cyclometalated Pt-ppy (<strong>5a</strong>-<strong>d</strong>) and Pt-dfppy complexes (<strong>6c,d</strong> and <strong>7c,d</strong>), where ppy = 2-phenylpyridine and dfppy = 2,4-difluorophenylpyridine,with mesogenic bidentate benzoylthiourea auxiliary ligands containingeither alkyl (BTUC<sub><em>n</em></sub>, <em>n</em> = 6, 8, 12, <strong>3a</strong>-<strong>d</strong>) or perfluoroalkyl chains(BTUF<sub>8</sub>, <strong>4c,d</strong>) were synthesized and characterized.Pt complexes with alkyl chains lack mesogenic properties. Liquid crystallineproperties with smectic phases are achieved only when one alkyl chainof the BTU ligands is replaced with a perfluorooctyl chain, as revealedby polarized optical microscopy (POM) observations and powder X-raydiffraction (XRD). A glassy state is exhibited by all Pt-BTUF<sub>8</sub> complexes (<strong>6c,d</strong> and <strong>7c,d</strong>) at temperatureslower than 45 °C. These Pt complexes are able not only to exhibitemission in solid, solution, mesophase, and glassy states but alsoto exhibit attractive reversible mechanochromism or solvatochromismupon exposure to different solvents (CH<sub>2</sub>Cl<sub>2</sub>,acetone, or EtOH). The chromic shift response of <strong>6c</strong> and <strong>6d</strong> is about 120 nm, which is higher than that found for otherPt metallomesogens. Density functional theory (DFT) and time-dependentDFT investigations (TDDFT) have been employed to rationalize the photophysicalproperties of Pt complexes.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2629–2640"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027931","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}
Junqing Jiang, Christopher W. Jones, Barry Reid, Dimitrios Tsikritsis, Ken Mingard, Poonam Ghai, Moona Kurttila, Michael Shaw
{"title":"Dimensionally Traceable 3D Microstructures for Multimodal Microscope Calibration","authors":"Junqing Jiang, Christopher W. Jones, Barry Reid, Dimitrios Tsikritsis, Ken Mingard, Poonam Ghai, Moona Kurttila, Michael Shaw","doi":"10.1021/acsaom.6c00316","DOIUrl":"https://doi.org/10.1021/acsaom.6c00316","url":null,"abstract":"<p>High-resolution microscopyunderpins the analysis ofbiologicalsystems across spatial scales, from individual biomolecules to complextissues. As multimodal imaging workflows and quantitative analysisof bioimage data become increasingly widespread, there is a growingneed for materials and methods to calibrate imaging systems and evaluatethe fidelity of image data. This article describes the developmentand characterization of dimensionally traceable, three-dimensionalmicrostructures as microscopy phantoms. Fabricated using two-photonphotolithography, the phantoms exhibit broadband visible autofluorescenceand Raman scattering across the fingerprint and C–H stretchingregions, making them suitable for a wide range of optical imagingtechniques, including one- and two-photon excited fluorescence andcoherent Raman scattering microscopy. Compatible with both air andliquid imaging media, the phantoms enable calibration under realisticbiological imaging conditions. For demonstration, a forked wedge designis used to validate image deconvolution results, while a stacked latticemicrostructure enables correction of chromatic offsets and axial scalingerrors. The impact of phantom-derived image corrections is illustratedusing a representative biological imaging application: analysis ofa cell-seeded scaffold using confocal fluorescence microscopy. Overall,these phantoms provide a versatile, accessible platform for calibration,quality control, and validation of multimodal imaging pipelines, supportingimproved quantitative optical microscopy.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2592–2602"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027943","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}
{"title":"Sensitive and Cumulative UVA Dosage Identification Card Based on Photochromic Crystalline/Amorphous Tungsten Oxides","authors":"Hongyang Li, Shan Wang, Meng Yuan, Ling Zuo, Xiangdong Meng, Long Yuan","doi":"10.1021/acsaom.6c00323","DOIUrl":"https://doi.org/10.1021/acsaom.6c00323","url":null,"abstract":"<p>UltravioletA (UVA) irradiation poses a health risk, as excessiveskin exposure may lead to serious skin diseases. Therefore, monitoringthe cumulative dose of UVA radiation received by the human body overthe course of a day is of great importance. In this study, we proposea dual-phase synergistic photochromic strategy based on crystallinity-regulatedamorphous/crystalline WO<sub>3</sub> for rapid UVA indication andcumulative UVA dose recording. Benefiting from the synergistic enhancementmechanism at the amorphous–crystalline interface, the optimizedWO<sub>3</sub>@400 test paper exhibits outstanding photochromic performance.Upon UVA irradiation, the test paper exhibits a rapid and visuallydistinguishable color transition from yellow-green to blue-green.It shows a high sensitivity (Δ<em>E</em> = 9.6 within3 s under 10 mW/cm<sup>2</sup>) and a large color difference (Δ<em>E</em> = 44.65 after 420 s under 120 mW/cm<sup>2</sup>). Moreover,the visible/NIR absorption increases markedly after UVA irradiation,with an absorbance difference of 74% at 885 nm, further confirmingits excellent photochromic coloration capability associated with polaronabsorption. On this basis, two types of test papers with differentdose response ranges were fabricated: the low-dose test paper hasa response range of 0–100 mJ/cm<sup>2</sup>, servingas a cumulative monitoring threshold for low-intensity UVA exposureover a short period (e.g., indoors near a window or on a cloudy day);the high-dose test paper has a response range of 0–1000 mJ/cm<sup>2</sup>, matching the unweighted 8-h occupational exposure limitfor UVA (315–400 nm) established by the InternationalCommission on Non-Ionizing Radiation Protection (ICNIRP). Both testpapers exhibit progressive and dose-dependent color evolution withincreasing cumulative UVA dose. Furthermore, by mixing samples withdifferent crystallinities, the color gradient can be further tunedto meet diverse application requirements. Therefore, the constructedUVA detection test paper enables visual monitoring of the cumulativeUVA dose, providing a simple, low-cost, portable, and power-free technicalapproach for personal UVA protection.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2603–2617"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027944","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}
Martina Mercurio, Daniele Ceneda, Agostino Occhicone, Ilaria Fratoddi, Isabella Chiarotto, Marco Centini, Maria Cristina Larciprete
{"title":"Flexible Silanized TiO2/SBS Nanocomposite Films with Optimized Emissivity for Passive Radiative Cooling Applications","authors":"Martina Mercurio, Daniele Ceneda, Agostino Occhicone, Ilaria Fratoddi, Isabella Chiarotto, Marco Centini, Maria Cristina Larciprete","doi":"10.1021/acsaom.6c00402","DOIUrl":"https://doi.org/10.1021/acsaom.6c00402","url":null,"abstract":"<p>Passive radiativecooling (RC) requires materials that combinehigh solar reflectance with strong long wavelength infrared (LWIR)emissivity in the 8–13 μm atmospheric window (AW). Inthis work, freestanding nanocomposite films were fabricated by embeddingMPTMS-functionalized TiO<sub>2</sub> nanoparticles (TiO<sub>2</sub>NPs–MPTMS) into a styrene–butadiene–styrene(SBS) triblock copolymer matrix. The resulting composites, referredto as NPs-SBS, were designed to be flexible, scalable, and cost-effectivefor potential RC applications. The SBS polymer provides emissive responsein the 8–13 μm AW, whereas the inorganic component governsthe solar reflection properties. Surface functionalization yieldedTi–O–Si linkages and a silica-like shell that enhancesnanoparticle dispersion and stability while introducing additionalvibrational modes in the LWIR range. Field-emission scanning electronmicroscopy and energy-dispersive X-ray spectroscopy characterizationconfirmed grain-like aggregates composed of nanoparticles with diametersranging between 30 and 60 nm and verified the surface functionalization.To optimize RC performance, composites containing 1, 5, and 7 wt %of TiO<sub>2</sub>NPs–MPTMS were investigated. Fourier transforminfrared spectroscopy and hemispherical optical measurements in thesolar range (0.3–15 μm) revealed that all nanocompositesexhibited enhanced emissivity within the 8–13 μm atmosphericwindow (ε<sub>8–13</sub> ≈ 0.63–0.65) comparedto pristine SBS, while the solar absorptance remained relatively low,although it increased with nanoparticle loading. By combining theexperimentally determined emissivity and solar-weighted absorptancewithin a simplified energy-balance model, the radiative cooling potentialof the films was assessed. Among the investigated formulations, 1NPs-SBSand 5NPs-SBS exhibited the most favorable balance between LWIR emissivityand solar absorption, highlighting the importance of nanoparticleloading optimization for passive radiative cooling applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2698–2707"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027948","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}
Hong Zheng, Shuwen Lou, Ziyu Wang, Jiale Wang, Chunran Zhang, Shengjie Yuan, Xiaoli Li
{"title":"Temperature-Dependent Photoluminescence Study of Defect Modulation in Ag-Doped CuInSe2 Thin-Film","authors":"Hong Zheng, Shuwen Lou, Ziyu Wang, Jiale Wang, Chunran Zhang, Shengjie Yuan, Xiaoli Li","doi":"10.1021/acsaom.6c00273","DOIUrl":"https://doi.org/10.1021/acsaom.6c00273","url":null,"abstract":"<p>CuInSe<sub>2</sub> (CISe) is an outstanding light-absorbingmaterialfor thin-film and tandem solar cells, while its photovoltaic performanceis significantly limited by its abundant intrinsic defects. Herein,temperature- and excitation-dependent photoluminescence (PL) spectroscopyis employed to investigate defect modulation and carrier recombinationin pristine CISe and its Ag-alloyed counterparts with 10% and 20%Ag incorporation. PL measurements reveal that all samples share acombined recombination process involving band-tail-state emissionand donor–acceptor pair (DAP) transitions. Moderate 10% Agdoping significantly enhances thermal stability and radiative intensityby effectively passivating intrinsic deep-level defects and utilizingformed Ag acceptors to suppress carrier thermal ionization. Conversely,excessive 20% Ag doping introduces Ag-related interstitial defectsthat restore structural inhomogeneity and generate additional deeptrap states, thereby accelerating nonradiative recombination and worseningthermal quenching at elevated temperatures. Importantly, Ag alloyingbarely shifts the PL peak position of CISe, demonstrating that Agpredominantly functions as a defect modulator rather than a bandgapengineering component. This work clarifies the concentration-dependentdual effects of Ag doping and provides a feasible strategy for defectoptimization of CISe and other chalcopyrite semiconductors towardhigh-efficiency photovoltaic devices.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2538–2546"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027951","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}
{"title":"Interview with Benjamin Droguet, Co-Founder of Sparxell","authors":"Gianni Jacucci","doi":"10.1021/acsaom.6c00532","DOIUrl":"https://doi.org/10.1021/acsaom.6c00532","url":null,"abstract":"","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"4 9","pages":"2471–2472"},"PeriodicalIF":3.4,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027998","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}