Article
Chemistry, Physical
Mohamed M. Motawea, Mohamed A. T. Hussein, Mohamed M. Elsenety, Hazim M. Ali, Tarek A. Seaf El-Nasr, Hassanien Gomaa
Summary: A novel nanocomposite of ZrO2@rice straw-derived SiO2 was synthesized for photocatalytic degradation of methylene blue. The nanocomposite exhibited excellent adsorption and photocatalytic efficiency, and could be regenerated and reused multiple times.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Italo Lacerda Fernandes, Danns Pereira Barbosa, Sergio Botelho de Oliveira, Valdeir Antonio da Silva, Marcelo Henrique Sousa, Marly Montero-Munoz, Jose A. H. Coaquira
Summary: The study demonstrates that the double-coated magnetic nanoparticles nanocomposites exhibit excellent photocatalytic activity with strong degradation capability against methylene blue dye, as well as high stability. These nanocomposites have great potential for applications in wastewater treatment and purifying contaminants.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Urbashi Mahanta, Mudrika Khandelwal, Atul Suresh Deshpande
Summary: An efficient SiO2-TiO2 nanoparticle system has been developed for enhanced photocatalytic degradation under natural sunlight and low-power UV light. Different mole ratios of SiO2 to TiO2 were used, with the 5:1 ratio system showing the highest adsorption capacity and the 2:1 ratio system demonstrating the best photocatalytic degradation performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shenglan Liao, Liqin Lin, Jiale Huang, Xiaolian Jing, Shiping Chen, Qingbiao Li
Summary: In this study, hollow SiO2 microspheres were synthesized using biological templates and TiO2-SiO2 microspheres were prepared through the hydrothermal process. The structures and physicochemical properties of TiO2-SiO2 photocatalysts were characterized, and their photocatalytic activity towards methyl orange degradation was evaluated.
Article
Materials Science, Ceramics
Chi Congcong, Qu Panpan, Ren Chaonan, Xu Xin, Bai Feifei, Zhang Danjie
Summary: In this study, a multi-layer core-shell structure of SiO2@Ag@SiO2@TiO2 was synthesized as a photocatalyst for the degradation of dye pollutants. The optimal coating effect was achieved by using a mass ratio of AgNO3, TEOS, and TBOT to SiO2 at 5:2.4:6:1, and the core-shell structure showed the best photocatalytic activity. The degradation efficiency of the SiO2@Ag@SiO2@TiO2 photocatalyst was close to 93% after 45 minutes of simulated visible light irradiation, and it maintained a degradation efficiency of 90% after 4 cycles of recycling tests. This research has significant importance for water pollution control.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Chemistry, Physical
H. Gomaa, Mohamed A. T. Hussein, Mohamed M. Motawea, Abdelaziz M. Aboraia, Mohamed F. Cheira, Mohammed T. Alotaibi, Salah M. El-Bahy, Hazim M. Ali
Summary: This article reports the synthesis of a novel mesoporous CuO@barley straw derived SiO2 (CuO@BSS) nanocomposite and its application as a photocatalyst and adsorbent for the removal of methylene blue from water. The results showed that MB photodegradation was more efficient than adsorption on the CuO@BSS nanocomposite at pH 10, with 90% and 99% removal of MB dye achieved through adsorption and photodegradation techniques, respectively.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
K. Santhi, S. Harish, M. Navaneethan, S. Ponnusamy
Summary: We synthesized ZnS/TiO2 nanocomposite through a one-step hydrothermal method and studied the effect of ZnS concentration on the phase and morphology of the materials. XRD confirmed the formation of tetragonal structure of anatase phase TiO2. UV-Visible spectra showed increased absorption towards higher wavelength with higher ZnS concentration. TEM revealed the formation of mesoporous structure of TiO2 and EDX analysis confirmed the presence of ZnS on the surface. The addition of ZnS prevented TiO2 aggregation and enhanced photocatalytic activity, achieving a highest degradation efficiency of 93% for methylene blue solution under visible light irradiation after 60 minutes.
SURFACES AND INTERFACES
(2023)
Article
Biotechnology & Applied Microbiology
Kaifeng Wang, Na Peng, Dongqing Zhang, Haijun Zhou, Jinfeng Gu, Jiahui Huang, Chen Liu, Yang Chen, Yang Liu, Jianteng Sun
Summary: This study investigated the adsorption performance of methylene blue using Ca(OH)2-modified rice straw biochar derived from agricultural and forestry wastes. The modified biochar exhibited excellent adsorption capacity for methylene blue, with a Langmuir fitting adsorption capacity 12.5 times higher than that of pristine rice straw biochar. The Ca(OH)2 modification increased the polarity, Ca content, and oxygen-containing functional groups of the biochar, enhancing the chemical adsorption of methylene blue.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Chemistry, Multidisciplinary
Yuliana de Jesus Acosta-Silva, Manuel Toledano-Ayala, Salvador Gallardo-Hernandez, Luis A. Godinez, Arturo Mendez-Lopez
Summary: TiO2-SiO2 thin films were created on Corning glass substrates using a simple method. The photocatalytic activity of the films increased with the increase of TiO2 layers, reaching a maximum degradation efficiency of 98% for methylene blue. The films exhibited an anatase structure and the size of each nanoparticle was 13-18 nm. Deep UV light was necessary to increase the photocatalytic activity due to photo-excitation in both SiO2 and TiO2.
Article
Polymer Science
Ximena Jaramillo-Fierro, Sneyder Gaona, John Ramon, Eduardo Valarezo
Summary: In this study, GP and GTA geopolymeric materials were prepared and characterized. The compounds showed high adsorption capacity and photocatalytic activity for the degradation of MB dye. The incorporation of ZnTiO3/TiO2 in the geopolymeric matrix allowed GTA to achieve higher overall efficiency compared to GP, combining adsorption and photocatalysis. The synthesized compounds could be used for multiple cycles for the removal of MB from wastewater.
Article
Materials Science, Ceramics
Haibei Tan, Yabin Zhang, Bowen Li, Hao Yang, Haitao Hou, Qinglin Huang
Summary: A polymer-glass flat membrane was prepared using the phase inversion casting method and TiO2 was coated on the surface of the membranes. The membrane was characterized and its photocatalytic degradation of methylene blue was investigated. The results showed that the membrane coated by three layers TiO2 sol exhibited the best photocatalytic degradation performance for methylene blue.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Wei Gao, Yufeng Li, Jitao Zhao, Zhe Zhang, Weiwei Tang, Jun Wang, Zhenyu Wu
Summary: Reduced graphene oxide (rGO)/TiO2 nanocomposites, synthesized through a hydrothermal technique, were used as photocatalysts to effectively degrade methylene blue (MB) in industrial dyestuff wastewater. The degradation efficiency of the nanocomposites for MB was as high as 98.18% at 5wt.% rGO content, 0.4 g L-1 rGO/TiO2 content, pH 6, and 60 mg L-1 MB concentration. The photocatalytic degradation mechanism involved immediate oxidative degradation and the combined action of O-2(center dot-), OH(center dot), and h(+) species. The degradation kinetic of the nanocomposites for MB followed a first-order model under UV irradiation.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Physical
Aleksandra Babyszko, Agnieszka Wanag, Marcin Sadlowski, Ewelina Kusiak-Nejman, Antoni W. W. Morawski
Summary: This paper presents a modification of titanium dioxide with fumed silica and investigates the characteristics and photocatalytic activity of the materials. The results show that the presence of SiO2 effectively inhibits the increase in crystallite size and decrease in specific surface area during calcination. SiO2 also contributes to the increase in specific surface area and the change in band gap energy values. The photocatalytic activity of SiO2/TiO2 photocatalysts is higher compared to the starting TiO2, and it increases with the increase in SiO2 content.
Article
Materials Science, Ceramics
Yabin Zhang, Haibei Tan, Chunfang Wang, Bowen Li, Hao Yang, Haitao Hou, Changfa Xiao
Summary: A TiO2-coated glass hollow fiber membrane was successfully synthesized and its photocatalytic removal of methylene blue from wastewater was investigated. The results showed that the membrane had good photocatalytic and antifouling properties, significantly improving the removal of methylene blue compared to the basement membrane. The membrane could be recycled multiple times with a high removal degree of methylene blue.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Environmental Sciences
Bablu Basumatary, Rajmoni Basumatary, Anjalu Ramchiary, Dimpul Konwar
Summary: Methylene blue degradation in wastewater was achieved effectively through the photocatalytic activity of Ag@TiO2/WO3 nanocomposite, which was prepared by a modified sol-gel precipitation route. The enhanced photocatalytic performance was attributed to reduced bandgap, improved charge carrier transfer efficiency, and plasmonic sensitization of Ag, resulting in a 25 times higher degradation rate compared to commercial DP25 photocatalyst under visible light.
Review
Chemistry, Multidisciplinary
Truong-Son Dinh Le, Hoang-Phuong Phan, Soongeun Kwon, Sangbaek Park, Yeongju Jung, Jinki Min, Byung Jae Chun, Hana Yoon, Seung Hwan Ko, Seung-Woo Kim, Young-Jin Kim
Summary: Laser-induced graphene (LIG) is a newly emerging 3D porous material with high porosity, excellent electrical conductivity, and good mechanical flexibility. LIG can be directly fabricated on carbon materials using laser beam, offering controllable properties and wide application potentials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Optics
Jaewon Yang, Dong Il Lee, Dong-Chel Shin, Jaehyun Lee, Byung Soo Kim, Hyun Jay Kang, Young-Jin Kim, Seung-Woo Kim
Summary: In this study, frequency comb-to-comb stabilization is achieved through coherent transfer of two separate comb lines via a freespace optical link, with strict control of atmospheric phase noise. This method has potential value in applications such as broadband molecular spectroscopy and ultra-stable microwave generation.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Chidanand Hegde, Chin Huat Joel Lim, Tan Hui Teng, Daobin Liu, Young-Jin Kim, Qingyu Yan, Hua Li
Summary: This article reports an alternative method for the synthesis and coating of alloys and multi-metal oxides using femtosecond laser direct writing. The process can be conducted at room temperature and in an open atmosphere, and is applicable to a large variety of oxides and alloys.
Article
Materials Science, Multidisciplinary
Han Ku Nam, Truong-Son Dinh Le, Dongwook Yang, Byunggi Kim, Younggeun Lee, June Sik Hwang, Young-Ryeul Kim, Hana Yoon, Seung-Woo Kim, Young-Jin Kim
Summary: Wood as a construction material is naturally abundant, renewable, recyclable, biodegradable, and environmentally friendly. This study demonstrates the direct formation of conductive laser-induced graphene (LIG) on wood, allowing the construction of key electrical components for smart wooden homes. The use of varnish coating for LIG protection, along with external mechanical pressure for electrical connections without conductive adhesives, promotes the development of green and smart adhesive-free timber-based buildings.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Sanghun Park, Sudip Kumar Pal, Tohid Otoufat, Gunwoo Kim
Summary: Radiative cooling attracts significant interest due to its potential to save energy consumption in HVAC systems and tackle global warming. However, the focus has mainly been on optimizing the geometries for selective wavelength absorption, rather than investigating and optimizing the polymer material itself. In this study, the authors investigate the infrared absorption coefficient of different polymer types and introduce a new concept of radiative-cooling composites. By dispersing an IR scattering medium in a polymer matrix, the authors demonstrate effective scattering and attenuation of infrared radiation, leading to improved cooling performance in a window film. This composite offers a promising approach to enhance radiative cooling properties in various polymer materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Dong-Chel Shin, Byung Soo Kim, Heesuk Jang, Young-Jin Kim, Seung-Woo Kim
Summary: The authors propose a photonic scheme for terahertz synthesis using an optical frequency comb stabilized to an ultra-low expansion optical cavity. This scheme achieves an unprecedented level of frequency instability of 10(-15) at 1-s integration over the tunable range of 0.1-1.1 THz. The generated terahertz frequencies have an extremely low level of phase noise, which is expected to greatly improve the performance of terahertz radars, molecular spectroscopy, and wireless communications.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Hyeokin Kang, Joohyung Lee, Young-Jin Kim, Seung-Woo Kim
Summary: We propose a phase-locked synthetic wavelength interferometer that eliminates cyclic errors in absolute distance measurements. The phase difference between the reference and measurement paths is fed back into a phase lock-in system to control the synthetic wavelength and achieve zero phase difference. By comparing with the conventional phase-measuring method, we validate the cyclic error removal of the proposed method. With a precision of 0.6 mrad in phase and no observed cyclic errors, the locked error signal analysis confirms the effectiveness of the phase-locked method.
Article
Chemistry, Analytical
Wooram Kim, Jaewon Yang, Jaeyoung Jang, Jeong Seok Oh, Seongheum Han, Seungman Kim, Heesuk Jang, Young-Jin Kim, Seung-Woo Kim
Summary: In this study, a long-distance ranging apparatus was configured to test the principle of dual-comb time-of-flight measurement using ultrashort lasers. The focus was on evaluating the performance in open-air conditions, quantitatively measuring the resolution and stability. The results showed that the dual-comb asynchronous optical pulse sampling technique allowed micrometer-resolved ranging with a repeatability of 2.05 μm over a distance of 648 m in dry weather. The study also evaluated atmospheric effects in different weather conditions and verified the capability of simultaneous determination of multiple targets.
Article
Nanoscience & Nanotechnology
Byunggi Kim, Seungman Choi, Seung Jai Won, Yong Woo Kim, Young-Jin Kim, Seung-Woo Kim
Summary: The article introduces a solid-based noncollinear HHG scheme that achieves active control of EUV harmonic beam propagation through wavefront manipulation. It also successfully converts EUV harmonics generated by double-annular beams into Bessel vortex beams, achieving millimeter-level depth-of-focus and nanoscale spatial resolution.
Review
Physics, Applied
Tran Thanh Tung, Ana L. C. Pereira, Erik Poloni, Minh Nhat Dang, James Wang, Truong-Son Dinh Le, Young-Jin Kim, Quoc Hue Pho, Md J. Nine, Cameron James Shearer, Volker Hessel, Dusan Losic
Summary: The research community has seen a surge in the exploration of graphene-related two-dimensional materials (GR2Ms) for innovative applications and emerging technologies. However, there is still a challenge in finding simple, low-cost, sustainable, and environmentally friendly methods to manufacture large quantities of high-quality GR2Ms. To overcome this challenge, the top-down irradiation approach has proven to be an effective and eco-friendly technology for scalable exfoliation and processing of GR2Ms, leading to new properties for emerging applications.
APPLIED PHYSICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Sudip Kumar Pal, Dong Yun Choi, Gunwoo Kim
Summary: This study demonstrates the design and experimental verification of a radiative cooling polymer-based composite material (PCM) face mask to enhance user comfort and protection, particularly in outdoor sunlight environments. With a single layer of silver nanoparticle coating, the PCM face mask has high efficiency in blocking sunlight and emitting radiation through higher IR emissivity. Outdoor measurements with simulated solar exposure showed a significant 4°C cooling impact compared to a bare mask.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Seungjai Won, Seungman Choi, Taewon Kim, Byunggi Kim, Seung-Woo Kim, Young-Jin Kim
Summary: A novel dynamic UV harmonic beam pattern control is achieved by manipulating the near-infrared wavefront of a femtosecond pulse laser. This technique enables arbitrary wavefront control of UV laser beams for high-precision laser patterning, polarization-sensitive encryption, and 3D holograms.
Article
Nanoscience & Nanotechnology
Sanghun Park, Sudip Kumar Pal, Tohid Otoufat, Gunwoo Kim
Summary: This study investigates the infrared absorption coefficient of various polymer types and introduces a new concept of radiative-cooling composites. By dispersing an infrared scattering medium in a polymer matrix, the infrared radiation can be effectively scattered and attenuated. This composite provides a new approach to enhance the radiative-cooling property of different polymer materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jianing An, Van Thai Tran, Hai Xu, Wenshuai Ma, Xingkuan Chen, Truong-Son Dinh Le, Hejun Du, Gengzhi Sun, Young-Jin Kim
Summary: A high-throughput manufacturing method utilizing femtosecond laser patterning-elastomer infiltration-physical transfer was used to fabricate a multimodal epidermal mechanosensor. This mechanosensor exhibits ultrahigh sensitivity, low detection limit, and fast response/recovery behavior, and can sense diverse mechanical stimuli. It provides a platform for high-fidelity monitoring of human motions.
Article
Optics
Jaeyoung Jang, Seung-Woo Kim, Young-Jin Kim
Summary: This study develops a time-of-flight based absolute laser ranging technique using a semiconductor optical amplifier for high-efficiency dual-comb cross-correlation, enabling the expansion of measurement channels. The method is suitable for measuring multiple and non-cooperative targets, with high measurement accuracy and repeatability. The system has the potential to be applied in various fields such as semiconductor manufacturing, smart factories, plant engineering, and satellite formation flying.
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
