ACS Applied Optical Materials最新文献

{"title":"Epitaxial Growth of Submillimeter-Thick CH3NH3PbBr3 Perovskite Films via Nitrogen-Regulated Solvent Extraction during the Blade-Coating Process for Sensitive Direct X-ray Detection","authors":"Min Yang,&nbsp;Xi Wang,&nbsp;Nan Li,&nbsp;Jiatian Cheng,&nbsp;Chengzhi Xue,&nbsp;Ziwei Xu,&nbsp;Depeng Chu,&nbsp;Xiaojie Zhang,&nbsp;Yucheng Liu,&nbsp;Zhou Yang* and Shengzhong Frank Liu*,&nbsp;","doi":"10.1021/acsaom.4c0040510.1021/acsaom.4c00405","DOIUrl":"https://doi.org/10.1021/acsaom.4c00405https://doi.org/10.1021/acsaom.4c00405","url":null,"abstract":"<p >Due to their exceptional responses to X-ray exposure, lead halide perovskites are recognized as ideal candidates for high-spatial-resolution X-ray detectors. However, an effective method to deposit a large-area, submillimeter-thick, dense perovskite film for X-ray detection has been lacking. In this study, a strategy that combines saturated-solution-induced epitaxial growth with a large-area blade-coating process has been developed to produce large-size, submillimeter-thick CH₃NH₃PbBr₃ perovskite films. The successive deposition of a saturated precursor film does not dissolve the underlying perovskite film. Instead, it promotes epitaxial crystal growth by controlling the crystal growth rate over the nucleation rate. The obtained films exhibit a columnar grain structure with fewer pinholes and negligible residual lattice strain. As a result, under an X-ray source with a working voltage of 40 kV, the obtained thick CH₃NH₃PbBr₃ film achieves X-ray sensitivity of up to 1938 μC Gy_air^–1 cm^–2 under −3 V bias, a reduced dark current drift of 1.78 × 10^–4 nA s^–1 V^–1, and a detection limit of 47 nGy_air s^–1 under a −2 V bias; all the above are among the best performances reported for the CH₃NH₃PbBr₃-based X-ray detectors. Using the point-to-point current scanning method, a clear X-ray image could be obtained. This study presents an effective approach for producing thick, dense, and crack-free perovskite films directly on substrates for future X-ray detection applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"70–80 70–80"},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086571","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":"Bonding of Shortwave Infrared Organic Photodetectors on Silicon via Conducting Polymer Glue for Image Sensor Applications","authors":"Cheng-En Tsai,&nbsp;Yu-Yang Su,&nbsp;Min-Hsuan Lee,&nbsp;Ping-Yen Chen,&nbsp;Chung-Wei Hsu and Yi-Ming Chang*,&nbsp;","doi":"10.1021/acsaom.4c0039110.1021/acsaom.4c00391","DOIUrl":"https://doi.org/10.1021/acsaom.4c00391https://doi.org/10.1021/acsaom.4c00391","url":null,"abstract":"<p >Integrating organic photodetectors (OPDs) with silicon (Si)-based readout integrated circuits presents numerous challenges, particularly due to the degradation of organic semiconductors (OSCs) caused by various stresses. This issue is especially pronounced in narrow bandgap OSCs with shortwave infrared (SWIR) spectral responses, further complicating the development of organic image sensors. To address the issue, we draw inspiration from silicon- and germanium-based sensor technology, proposing a method of first fabricating bottom-illuminated SWIR OPD devices on a glass substrate and then bonding the OPD onto a Si substrate using a poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) glue to form a top-illuminated device. This architecture avoids exposing the OPDs to high temperatures and plasma bombardment during the thin-film deposition, and the glass substrate can also serve as an ideal encapsulation cover, offering a new direction for the integration of OPD-on-Si technology. Eventually, the bonded, top-illuminated device achieves a detectivity of 3.58 × 10¹⁰ Jones at 1290 nm and −2 V bias. This advancement not only enhances the integration completeness of OPDs with Si semiconductors but also preserves the intrinsic performance of OSC materials, further bringing revolutionary changes to the organic sensing industry.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"54–63 54–63"},"PeriodicalIF":0.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086623","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":"Shape Retrieval of Azopolymer Surface Relief Gratings from Diffraction Efficiency Measurement","authors":"Francesco Reda,&nbsp;Fabio Borbone,&nbsp;Marcella Salvatore and Stefano L. Oscurato*,&nbsp;","doi":"10.1021/acsaom.4c0046210.1021/acsaom.4c00462","DOIUrl":"https://doi.org/10.1021/acsaom.4c00462https://doi.org/10.1021/acsaom.4c00462","url":null,"abstract":"<p >Azopolymers have enormous potential as real-time materials for lithography. Light-induced surface deformations in these polymers enable single-step surface patterning, offering the possibility of fabricating reconfigurable diffractive optical components like gratings. While real-time measurement of the surface geometry is inherently possible, previous methods have relied on complex instruments. Conversely, simple approaches based on real-time diffraction efficiency measurements of a probing light beam have provided only qualitative estimates of the inscription process. Here, we propose a diffraction-based method for the accurate real-time reconstruction of surface relief gratings inscribed on azopolymer films. Our method relies on the acquisition of the diffraction pattern of a probe beam during the SRG formation, and we allowed for surface geometry reconstruction through Fourier decomposition with residual error below 3% and 50 ms temporal resolution. Our all-optical approach, directly integrable in any experimental configuration, provides direct access to the SRG inscription process, enabling real-time feedback for on-demand dynamic surfaces.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"6–13 6–13"},"PeriodicalIF":0.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086621","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":"Study of Transmission and Haze of Translucent Wood Based on Wood Density and Hyperspectral Analysis of Wood Fabrication","authors":"Ashima Vashistha*,&nbsp;Youssef Karout,&nbsp;Marie-Christine Trouy,&nbsp;Sébastien Patour* and Christophe Couteau*,&nbsp;","doi":"10.1021/acsaom.4c0038910.1021/acsaom.4c00389","DOIUrl":"https://doi.org/10.1021/acsaom.4c00389https://doi.org/10.1021/acsaom.4c00389","url":null,"abstract":"<p >Translucent wood is a biocomposite material fabricated by altering the chemical structure of the wood and impregnating the structural voids with a polymer that closely matches the refractive index of the structure of the wood. This work reports on the study of translucent wood fabricated using five different diffuse porous hardwood species and records the transmission and haze measurements of each of these species’ samples. This work highlights the trends between the measured transmission and haze on one hand and the anatomical differences and/or similarities of these species on the other hand. In terms of the anatomy of wood, we attempt to link the anatomical density of wood to the observed optical properties. The study first demonstrates the efficient removal of lignin and the proof of polymer impregnation in order to obtain translucent wood using hyperspectral imaging for spatial recognition of lignin and resin in the samples. Three methods of optical transmission measurement are presented here, as well as results on the wood densities obtained using two different methods: the first method calculates the structural ratio using image segmentation between the wood and the empty pores (lumen) and the second method uses the ratio of water-saturated and dry wood weight using the water immersion method. It is concluded that there are correlations between the density of the wood and the optical properties, particularly noting that the optical transmission of translucent wood decreases as the wood density increases. On the other hand, no clear correlations were observed between the structural properties and the haze properties of the material. Some potential explanations are given and open the way to further studies and understanding of wood structure using optical methods.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"42–53 42–53"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086134","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":"Ultrafast Optical Kerr Nonlinearity in LaPO4/g-C3N4 Heterojunctions for Optical Power Limiting Applications","authors":"Vijayakumar Balakrishnan,&nbsp;Mani Rahulan Kirubalan,&nbsp;Annie Sujatha Rajendran,&nbsp;Sabari Girisun Chidambaram,&nbsp;Venugopal Rao Soma and N. Angeline Little Flower*,&nbsp;","doi":"10.1021/acsaom.4c0045010.1021/acsaom.4c00450","DOIUrl":"https://doi.org/10.1021/acsaom.4c00450https://doi.org/10.1021/acsaom.4c00450","url":null,"abstract":"<p >The present work reports the ultrafast photophysical carrier dynamics and third-order optoelectronic Kerr nonlinearity of a liquid-phase exfoliated LaPO₄/g-C₃N₄ heterojunction via a single-beam <i>Z</i>-scan technique using femtosecond (∼50 fs, 800 nm) and nanosecond (∼9 ns, 532 nm) pulses. A series of pure LaPO₄, bulk g-C₃N₄, exfoliated g-C₃N₄, and LaPO₄/g-C₃N₄ heterojunctions were successfully synthesized using a wet chemical method, and their structural, thermal, and phase stabilities were confirmed via preliminary material characterization such as X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Third-order nonlinear studies revealed enhanced three-photon- and two-photon-assisted nonlinear absorptions in an exfoliated 2D g-C₃N₄ heterojunction with 1D orthophosphate having nonlinear absorption coefficients on the order of 10^–4 (cm³/GW²) and 10^–10 m/W, respectively. Moreover, the nonlinear refractive index was estimated to be on the order of 10^–15 (cm²/W). Physical parameters such as the Kane energy and exciton reduced mass were calculated for composite samples. A type II heterojunction is formed and confirmed from band alignment using UV–visible absorption spectra and Fermi energy level calculations along with orbital contributions in LaPO₄ and g-C₃N₄ using density functional theory. The optical limiting properties of pure LaPO₄ and LaPO₄/g-C₃N₄ heterojunctions were examined, revealing that LaPO₄/g-C₃N₄ is a promising candidate for optical limiting applications from femtosecond and nanosecond lasers owing to its strong reverse saturable absorption.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"188–204 188–204"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085089","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":"Broadband and Persistent Photoconductivity Immune Phototransistors Achieved by a Perovskite/IGZO Heterojunction","authors":"Hongwei Hao,&nbsp;Yi-an Ding,&nbsp;Lingxue Meng,&nbsp;Yingze Ji,&nbsp;Xi Zhou,&nbsp;Yanzhuo Wei,&nbsp;Chen Chen,&nbsp;Dongdong Li* and Shan-Ting Zhang*,&nbsp;","doi":"10.1021/acsaom.4c0046010.1021/acsaom.4c00460","DOIUrl":"https://doi.org/10.1021/acsaom.4c00460https://doi.org/10.1021/acsaom.4c00460","url":null,"abstract":"<p >Due to the wide band gap (&gt;3 eV) of indium gallium zinc oxide (IGZO), an IGZO transistor hardly absorbs visible and near-infrared (NIR) photons. We have successfully developed a high-performance phototransistor based on the perovskite (PVK) and IGZO heterojunction. By employing a narrow band gap (1.68 eV) of the PVK layer, the PVK/IGZO phototransistor demonstrates excellent light detection in the 365–820 nm range and eliminates the undesired persistent photoconductivity (PPC) effect. Under green light of 520 nm, the device achieves an impressive photoresponsivity of 1.08 A·W^–1 and a detectivity of 4.70 × 10¹¹ Jones, positioning it among the best reported values. In particular, under NIR light of 820 nm, the device achieves a photoresponsivity of 0.07 A·W^–1 and a detectivity of 4.53 × 10¹⁰ Jones, ranking the highest among similar structures. The PVK/IGZO phototransistor displays a fast rise/decay time in the range of hundreds of milliseconds or less. This work offers a cost-effective solution for developing high-performance next-generation photodetector devices tailored to artificial intelligence applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"223–230 223–230"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085117","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":"Multicomponent Fluorescent MOF-Based Bifunctional Sensor for the Visual Detection of 2,4,6-Trinitrophenol and Nitrofurantoin","authors":"Mingyue Fan,&nbsp;Xiao Li*,&nbsp;Xu Han,&nbsp;Feng wei Gao,&nbsp;Jidong Dong,&nbsp;Zaixing Jiang* and Zhong-Min Su*,&nbsp;","doi":"10.1021/acsaom.4c0044510.1021/acsaom.4c00445","DOIUrl":"https://doi.org/10.1021/acsaom.4c00445https://doi.org/10.1021/acsaom.4c00445","url":null,"abstract":"<p >The chemical sensors based on luminescent MOFs (LMOFs) have attracted widespread attention in the sensing field due to their high sensitivity and rapid response. However, bifunctional sensors that can simultaneously detect nitro-explosives and antibiotics have rarely been developed among numerous synthesized LMOFs. Here, we report a 3D Cd-based LMOF with four coexisting components, defined as CUST-534, with the formula [Cd(4Cl-BDC)_0.5(STDC)_0.5L]_<i>n</i> (4Cl-BDC = tetrachloroterephthalic acid, STDC = 4,4′-stilbenedicarboxylic acid, and L = 9,10-bis(<i>N</i>-benzimidazolyl)anthracene). Thanks to the conjugated structure of the anthracene nitrogen-containing ligand and coordination effect, CUST-534 exhibits bright blue light emission, enabling high sensitivity and selectivity in detecting 2,4,6-trinitrophenol (TNP) and nitrofurantoin (NFT) through a quenching effect. The lowest detection limits for TNP and NFT are 0.20 and 0.23 ppm, respectively, which surpass those of many previously reported fluorescent sensing materials. In addition, considering the difficulty of collecting the MOF powder, a portable fluorescent test strip was successfully constructed by combining it with filter paper. Accurate conversion of color and RGB coordinates can be achieved with the assistance of the application color recognizer on the smartphone. This strategy is easy to operate and efficient, demonstrating its potential in practical applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"161–168 161–168"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085086","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":"Bulk Layered Materials and Their Monolayer Counterparts for Radiative Heat Transfer","authors":"Long Ma,&nbsp;Dai-Nam Le,&nbsp;Philippe Ben-Abdallah and Lilia M. Woods*,&nbsp;","doi":"10.1021/acsaom.4c0038410.1021/acsaom.4c00384","DOIUrl":"https://doi.org/10.1021/acsaom.4c00384https://doi.org/10.1021/acsaom.4c00384","url":null,"abstract":"<p >Thermal radiation between objects is a phenomenon that has applications in energy harvesting and heat management. In this study, we consider several layered bulk systems and their monolayer counterparts to broaden the materials perspective and highlight the role of dimensionality in radiative heat transfer phenomena. For this purpose, we calculate the exchanged thermal power by taking realistic electronic and optical response properties computed from first principles. Characteristic behaviors in terms of magnitude, scaling laws, and temperature dependence are analyzed by using analytically effective models based on the computational results for the optical response. We find that the dimensionality, hyperbolicity, and specific features of the optical response especially at low frequencies must be considered on equal footing in order to understand thermal radiation in realistic materials. This study suggests that structure–property relations from first principles are necessary in the search of optimum naturally occurring materials for radiative thermal control.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"31–41 31–41"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085307","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":"Toward Emission Enhancement of Blue Emitters in hBN Using Plasmonic Lattices","authors":"Karin Yamamura,&nbsp;Shu An,&nbsp;Ivan Zhigulin,&nbsp;Mehran Kianinia,&nbsp;Yiming Wu,&nbsp;Zhaogang Dong* and Igor Aharonovich*,&nbsp;","doi":"10.1021/acsaom.4c0040110.1021/acsaom.4c00401","DOIUrl":"https://doi.org/10.1021/acsaom.4c00401https://doi.org/10.1021/acsaom.4c00401","url":null,"abstract":"<p >Hexagonal boron nitride (hBN) has been gaining attention as a compelling material platform hosting quantum emitters at room temperature. A particularly important family of emitters in hBN are those with a zero phonon line at 436 nm (termed B-centers) since these can be engineered on demand using electron beam irradiation. In this work, we demonstrate a pathway to integrate these emitters with plasmonic lattices. The blue wavelength necessitates the use of aluminum metal, instead of gold or silver. Consequently, we utilize trench cavity geometry and transfer hBN layers on top of the lattice. We then create deterministically the emitters and measure a 6-fold enhancement in the emission intensity. We conclude by discussing the potential possibilities of plasmonic lattice arrays for scalable enhancement of quantum emitters in layered materials.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 1","pages":"64–69 64–69"},"PeriodicalIF":0.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084370","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":"Patterned Growth and Modulated Photoluminescence of MoS2 on the Mixed-Terminated SrTiO3 Surface","authors":"Yue Xing,&nbsp;Chenxi Huang,&nbsp;Wenzhe Fu,&nbsp;Jingjing Wang and Xiang Shao*,&nbsp;","doi":"10.1021/acsaom.4c0041910.1021/acsaom.4c00419","DOIUrl":"https://doi.org/10.1021/acsaom.4c00419https://doi.org/10.1021/acsaom.4c00419","url":null,"abstract":"<p >Understanding the intricate interplay between 2D materials (2DMs) and functional oxides is crucial for advancing various applications in nanoscience and nanotechnology. Within this context, we investigate the composite system comprising molybdenum disulfide (MoS₂) and strontium titanate (SrTiO₃) substrates, elucidating how controlled variations in a substrate surface structure modulate the growth and properties of MoS₂. We developed a reliable method to manipulate the termination of SrTiO₃(001) single crystals with different contents of TiO₂ and SrO and fabricate high-quality MoS₂ films selectively on the TiO₂ area while avoiding all the SrO regions through a chemical vapor deposition strategy. Multiple characterization techniques revealed that such patterned MoS₂ possesses not only ideal crystallinity but also a nanoporous structure with a large ratio of boundary sites which efficiently facilitates the charge transfer between MoS₂ and the SrTiO₃ substrate. Our findings underscore the pivotal role of substrate surface termination in modulating the electronic and optical properties of the composite system, paving the way for the rational design and engineering of 2DM-based devices for diverse applications in nanoelectronics and optoelectronics.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"2 12","pages":"2585–2594 2585–2594"},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143125792","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}