Article
Chemistry, Analytical
Zhixiang Hu, Licheng Zhou, Long Li, Jingyao Liu, Hua-Yao Li, Boxiang Song, Jianbing Zhang, Jiang Tang, Huan Liu
Summary: In this study, a stabilization strategy for PbS CQD gas sensors is proposed by using atomic-ligand engineering. The sensitivity and long-term stability of the PbS CQD gas sensor towards nitrogen dioxide (NO2) are remarkably improved by replacing the oleic acid ligands with halide ligands. The mechanism behind these improvements is investigated through various analysis methods.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Xinlu Liu, Ting Fu, Jianping Liu, Yinglin Wang, Yuwen Jia, Chao Wang, Xiaofei Li, Xintong Zhang, Yichun Liu
Summary: In this study, an efficient surface chemistry optimization of PbS CQDs for photovoltaics was achieved by annealing the CQD solution with concentrated lead halide ligands after conventional solution-phase ligand exchange. This strategy not only minimized CQD polydispersity and decreased aggregation, but also decreased trap-state density, leading to highly efficient solar cells. The research provides meaningful guidance for controlling ligand reactivity and realizing subtly purified CQDs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Miguel Albaladejo-Siguan, Elizabeth C. Baird, David Becker-Koch, Yanxiu Li, Andrey L. Rogach, Yana Vaynzof
Summary: Colloidal quantum dot solar cells (QDSCs) show great potential in energy conversion efficiency, but their stability under sunlight exposure needs improvement. This review focuses on the degradation mechanisms and stability improvement strategies of three classes of QDs, proposing a methodology for characterizing QDSCs' stability.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Debranjan Mandal, Neha Dambhare, Arup K. Rath
Summary: Improvements in surface passivation and device engineering have led to advancements in QD-based solar cells. A solution-phase hybrid passivation strategy has been shown to be effective in removing detrimental hydroxyl traps and improving QD coupling, resulting in higher efficiency and longer carrier lifetime. The performance of solar cell devices has increased by 26% with the implementation of these strategies.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Mingyu Li, Xinzhao Zhao, Afei Zhang, Bo Wang, Yang Yang, Shaoheng Xu, Qingsong Hu, Guijie Liang, Zewen Xiao, Liang Gao, Jianbing Zhang, Hsien-Yi Hsu, Haisheng Song, Jiang Tang
Summary: Lead sulfide colloidal quantum dot (PbS CQD) solar cells with organic halide salt phenethylammonium iodide/bromine (PEAX, X = I/Br) additive ligands show enhanced surface passivation, improved charge transport property, and record power conversion efficiency (PCE) of 12.28% under solar AM1.5G. The addition of PEAX ligand also suppresses halogen ion migration and increases device stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Mingxu Zhang, Qisen Zhou, Xinyi Mei, Jingxuan Chen, Junming Qiu, Xiuzhi Li, Shuang Li, Mubing Yu, Chaochao Qin, Xiaoliang Zhang
Summary: By using dimethylammonium iodide (DMAI) as an additive instead of ammonium acetate (AA) for the liquid-state ligand exchange, the liquid-state ligand exchange of colloidal quantum dots (CQDs) can be improved, reducing the charge-transport barriers within the CQD solids and improving the photovoltaic performance of CQD solar cells (CQDSCs). The improved surface passivation of CQDs and the facilitated charge-carrier transport within the CQD solids are responsible for the enhanced performance in DMAI-based CQDSCs, compared to AA-based CQDSCs.
ACTA PHYSICO-CHIMICA SINICA
(2023)
Article
Chemistry, Multidisciplinary
Qiwei Xu, I. Teng Cheong, Lingju Meng, Jonathan G. C. Veinot, Xihua Wang
Summary: The study demonstrates the importance of Si surface passivation for the construction of high-performance Si:CQD photodetectors. The two-step passivated Si:CQD interface shows fewer trap states and decreased recombination rates, leading to a higher external quantum efficiency in infrared photodiodes.
Review
Chemistry, Physical
Yang Liu, Guozheng Shi, Zeke Liu, Wanli Ma
Summary: Lead chalcogenide colloidal quantum dots are promising for low-cost, large-area, and flexible solar cells. The development of CQD inks has improved device performance and simplified fabrication processes, showing potential for commercialization in solar module production.
NANOSCALE HORIZONS
(2021)
Article
Chemistry, Multidisciplinary
Xuliang Zhang, Hehe Huang, Lujie Jin, Chao Wen, Qian Zhao, Chenyu Zhao, Junjun Guo, Chen Cheng, Hongshuai Wang, Liang Zhang, Youyong Li, Yin Maung Maung, Jianyu Yuan, Wanli Ma
Summary: In this study, a facile surface reconfiguration methodology was introduced to modulate the surface features and manipulate electronic coupling of FAPbI(3) QDs, using an ionic liquid formamidine thiocyanate as an assist. By employing this method, high-quality QD arrays and photovoltaic devices were fabricated, resulting in a record-high efficiency approaching 15% for FAPbI(3) QD solar cells, which retained over 80% of the initial efficiency after aging for over 600 hours in an ambient environment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Byeongsu Kim, Se-Woong Baek, Changjo Kim, Junho Kim, Jung-Yong Lee
Summary: To achieve high performance CQD/organic hybrid devices, controlling interfacial properties between CQD and organic matter is crucial. By carefully modulating the electronic band between CQD and polymer layers through inserting an interfacial layer treated with various ligands, local charge accumulation and bimolecular recombination can be suppressed, resulting in a high short-circuit current and fill factor of hybrid solar cells. The optimized CQD/polymer hybrid solar cell demonstrates high power conversion efficiency and stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yuanze Xu, Hao Li, Shripathi Ramakrishnan, Donghoon Song, Yugang Zhang, Mircea Cotlet, Qiuming Yu
Summary: This study presents an ion-assisted ligand-exchange method for improving the ligand management on perovskite quantum dot surfaces. The method enables more complete ligand exchange, resulting in dense and well-oriented packing of the quantum dots, as well as reduced surface trap state density and improved charge transport efficiency. The inverted quantum dot solar cells fabricated using this method exhibit significant improvement in photovoltaic efficiency and stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Multidisciplinary Sciences
Stefania Cacovich, Guillaume Vidon, Matteo Degani, Marie Legrand, Laxman Gouda, Jean-Baptiste Puel, Yana Vaynzof, Jean-Francois Guillemoles, Daniel Ory, Giulia Grancini
Summary: Interface engineering using passivating agents is an effective strategy to improve the performance of perovskite solar cells. This study investigates the interface and device physics of high efficiency inverted solar cells, quantifying charge recombination and losses. The results show that organic passivation mainly affects the perovskite/PCBM interface, and the use of organic passivation maximizes the photovoltaic figures of merit.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Miguel Albaladejo-Siguan, David Becker-Koch, Elizabeth C. Baird, Yvonne J. Hofstetter, Ben P. Carwithen, Anton Kirch, Sebastian Reineke, Artem A. Bakulin, Fabian Paulus, Yana Vaynzof
Summary: Light-harvesting devices made from lead sulfide quantum dot absorbers have promising applications in third-generation photovoltaics. Passivating the quantum dot surfaces and managing the excess lead halide can improve device performance and stability.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hongjin Gao, Yuan Qie, Haobing Zhao, Fushan Li, Tailiang Guo, Hailong Hu
Summary: We report a high-efficiency, high-resolution quantum dot light-emitting diode (QLED) patterned using ultraviolet-induced ligand exchange. The efficiency of the device is significantly increased by carrying out a ligand passivation strategy to remove surface defects of the quantum dots (QDs) after patterning. A polymethyl methacrylate (PMMA) film is inserted as a charge barrier layer to reduce leakage current in non-luminance areas between QD arrays. By optimizing the ligand passivation and suppressing leakage current, the device with 5 μm diameter QD arrays exhibits high luminance and maximum external quantum efficiency. This work provides a feasible approach for high-resolution, high-performance QLEDs in next-generation display applications.
ORGANIC ELECTRONICS
(2022)
Article
Energy & Fuels
Qi Xiao, Bing Xia, Peilin Liu, Yang Yang, Gaoyuan Yang, Jing Liu, Shuaicheng Lu, Xuezhi Zhao, Ciyu Ge, Duo Chen, Junrui Yang, Guijie Liang, Kanghua Li, Xinzheng Lan, Zewen Xiao, Jianbing Zhang, Liang Gao, Jiang Tang
Summary: The study proposes a facile patch-passivation strategy for developing efficient PbS CQD IR solar cells. By adding TPPO Lewis base to PbS CQDs, uncoordinated Pb2+ can be passivated, suppressing non-radiative recombination. The TPPO-passivated devices achieve high PCE and promising open-circuit voltage in the IR spectrum.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Review
Nanoscience & Nanotechnology
Zhenpeng Yao, Yanwei Lum, Andrew Johnston, Luis Martin Mejia-Mendoza, Xin Zhou, Yonggang Wen, Alan Aspuru-Guzik, Edward H. Sargent, Zhi Wei Seh
Summary: This Perspective highlights the recent advances in machine learning-driven energy research and proposes a set of key performance indicators to compare the benefits of different ML-accelerated workflows in the field of renewable energy.
NATURE REVIEWS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yoo Min Shin, Ji Hyeon Lee, Geon Yeong Kim, Hae Mee Ju, Yeon Sik Jung, Jea Woong Jo, Min-Jae Choi
Summary: In this study, all-inorganic perovskite nanowires with minimized surface defects were synthesized using a dual-phase passivation strategy. These nanowires were used as an interfacial layer in perovskite solar cells, resulting in an increased power conversion efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Haoyue Wan, Fengyan Jia, Filip Dinic, Muhammad Imran, Benjamin Rehl, Yanjiang Liu, Watcharaphol Paritmongkol, Pan Xia, Ya-Kun Do Wang, Yuan Liu, Sasa Wang, Quan Lyu, Giovanni Francesco Cotella, Peter Chun, Oleksandr Voznyy, Sjoerd Hoogland, Edward H. Sargent
Summary: Lead-free double perovskites demonstrate non-toxic properties and strong emission by incorporating alloying and doping. In this study, Bidoped pure Rb2HfCl6 and Cs-alloyed RbCsHfCl6 microcrystals were synthesized. The pure Rb2HfCl6 microcrystals showed minimal emission, while alloying with Cs and doping with Bi resulted in strong deep blue emission at 466 nm with an increased photoluminescence quantum yield from approximately 0 to 66%. Density functional theory analysis confirmed the enhanced phase stability due to Cs-alloying and linked the photoluminescence to localized states induced by Bi3+ dopants.
CHEMISTRY OF MATERIALS
(2023)
Article
Energy & Fuels
Adnan Ozden, Jun Li, Sharath Kandambeth, Xiao-Yan Li, Shijie Liu, Osama Shekhah, Pengfei Ou, Y. Zou Finfrock, Ya-Kun Wang, Tartela Alkayyali, F. Pelayo Garcia de Arquer, Vinayak S. Kale, Prashant M. Bhatt, Alexander H. Ip, Mohamed Eddaoudi, Edward H. Sargent, David Sinton
Summary: Carbon dioxide/monoxide (CO2/CO) electrolysis has the potential to convert emissions into multicarbon products, but current systems suffer from low energy and carbon efficiencies. In this study, the researchers identified uncontrolled gas/ion distributions as the source of these inefficiencies and developed a strategy to block cation migration to the catalyst surface using a covalent organic framework (COF). The COF-mediated catalyst achieved a single-pass carbon efficiency of 95%, an energy efficiency of 40%, and a current density of 240 mA cm(-2) during 200 hours of electrosynthesis of multicarbon products from CO.
Article
Chemistry, Multidisciplinary
Pan Xia, Bin Sun, Margherita Biondi, Jian Xu, Ozan Atan, Muhammad Imran, Yasser Hassan, Yanjiang Liu, Joao M. Pina, Amin Morteza Najarian, Luke Grater, Koen Bertens, Laxmi Kishore Sagar, Husna Anwar, Min-Jae Choi, Yangning Zhang, Minhal Hasham, F. Pelayo Garcia de Arquer, Sjoerd Hoogland, Mark W. B. Wilson, Edward H. Sargent
Summary: This research reports a novel co-passivation strategy for fabricating indium arsenide CQD photodetectors, which maintains charge carrier mobility and improves passivation by using methyl ammonium acetate and indium chloride as ligands, resulting in a doubling of the photoluminescence lifetime. The resulting devices achieved a 37% external quantum efficiency (EQE) at 950 nm, the highest reported value for InAs CQD photodetectors.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Alam Mahmud, Dingran Chang, Jagotamoy Das, Surath Gomis, Farid Foroutan, Jenise B. Chen, Laxman Pandey, Connor D. Flynn, Hanie Yousefi, Armin Geraili, Heather J. Ross, Edward H. Sargent, Shana O. Kelley
Summary: This study presents a reagent-free electronic sensing system that can analyze disease markers directly in unprocessed body fluids, paving the way for simple and affordable devices for personalized healthcare monitoring.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Materials Science, Multidisciplinary
Younghoon Kim, Min-Jae Choi, Jongmin Choi
Summary: This paper reviews the research progress of colloidal quantum dot (CQD) solar cells, focusing on the strategies adopted for achieving record efficiency. These strategies include the use of organic/inorganic surface ligands, pre-and post-treatment of CQDs, and solid-state/solution-phase ligand exchange. In addition, the paper provides an understanding of the research history and recent developments in the rational design of next-generation CQD optoelectronic devices, as well as the importance of infrared CQD solar cells as complementary platforms to other solar cell technologies.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Dingran Chang, Zongjie Wang, Connor D. Flynn, Alam Mahmud, Mahmoud Labib, Hansen Wang, Armin Geraili, Xiangling Li, Jiaqi Zhang, Edward H. Sargent, Shana O. Kelley
Summary: Pro-SELEX is an approach for the rapid discovery of aptamers with precisely defined binding affinities. It combines efficient particle display, high-performance microfluidic sorting, and high-content bioinformatics. Using Pro-SELEX, aptamers with a 20-fold range of affinities can be identified within one round of selection, as demonstrated with human myeloperoxidase as the target.
Article
Chemistry, Physical
Yujin Jung, Hyeyoung Shin, Se-Woong Baek, Truong Ba Tai, Benjamin Scheffel, Olivier Ouellette, Margherita Biondi, Sjoerd Hoogland, F. Pelayo Garcia de Arquer, Edward H. Sargent
Summary: Solution-processed semiconducting materials have potential for high-performance, low-cost, and flexible energy conversion devices. By using a library of surface ligands with different functions, the photophysical mismatch at the colloidal quantum dot (CQD)/organic interface was addressed, resulting in improved charge transfer efficiency. Hybrid CQD/organic heterojunction solar cells showed record photocurrent density and near-unity broadband quantum efficiency.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Byoung-Hoon Lee, Heejong Shin, Armin Sedighian Rasouli, Hitarth Choubisa, Pengfei Ou, Roham Dorakhan, Ivan Grigioni, Geonhui Lee, Erfan Shirzadi, Rui Kai Miao, Joshua Wicks, Sungjin Park, Hyeon Seok Lee, Jinqiang Zhang, Yuanjun Chen, Zhu Chen, David Sinton, Taeghwan Hyeon, Yung-Eun Sung, Edward H. Sargent
Summary: Researchers have developed a supramolecular approach using a carbon nanotube substrate and a cobalt phthalocyanine catalyst to improve the efficiency and stability of two-electron oxygen reduction for H2O2 production. This approach shows significant improvement compared to the state-of-the-art electrocatalysts, with higher activity and sustained performance.
Article
Green & Sustainable Science & Technology
P. Vahdatkhah, O. Voznyy, S. K. Sadrnezhaad
Summary: The reversibility of anionic and cationic redox in Co-free concentration-gradient LLO was improved by integrating oxygen vacancies and high Ni/Mn ratio on LLO's surface, resulting in enhanced capacity of the cathode. This work provided a practical approach for resolving the capacity decay of Co-free LLOs by engineering the cathode/electrolyte interface and structure.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Hitarth Choubisa, Md Azimul Haque, Tong Zhu, Lewei Zeng, Maral Vafaie, Derya Baran, Edward H. Sargent
Summary: The exploration of thermoelectric materials is challenging due to the large materials space and the complexity of synthesis. By incorporating historical data and using error-correction learning, this study discovers a previously unexplored family of thermoelectric materials and finds an optimized material with significantly improved power factor. It is observed that a closed-loop experimentation strategy reduces the required number of experiments by up to 3 times compared to high-throughput searches powered by state-of-the-art machine-learning models.
ADVANCED MATERIALS
(2023)
Correction
Multidisciplinary Sciences
Hao Chen, Aidan Maxwell, Chongwen Li, Sam Teale, Bin Chen, Tong Zhu, Esma Ugur, George Harrison, Luke Grater, Junke Wang, Zaiwei Wang, Lewei Zeng, So Min Park, Lei Chen, Peter Serles, Rasha Abbas Awni, Biwas Subedi, Xiaopeng Zheng, Chuanxiao Xiao, Nikolas J. Podraza, Tobin Filleter, Cheng Liu, Yi Yang, Joseph M. Luther, Stefaan De Wolf, Mercouri G. Kanatzidis, Yanfa Yan, Edward H. Sargent
Article
Chemistry, Physical
Hitarth Choubisa, Petar Todorovic, Joao M. M. Pina, Darshan H. Parmar, Ziliang Li, Oleksandr Voznyy, Isaac Tamblyn, Edward H. Sargent
Summary: Machine learning models can predict material properties and simulate density functional theory calculations at a lower cost, providing interpretable chemical rules for experimental design. By combining evolutionary algorithms, machine learning models, supervised learning, and statistical testing, we have developed a framework to bridge the gap between theory and experiments. We have successfully developed design rules for direct bandgap materials, stable UV emitters, and IR perovskite emitters, and demonstrated the statistical robustness and applicability of DARWIN-generated rules, including the design of UV halide perovskites.
NPJ COMPUTATIONAL MATERIALS
(2023)
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.
