Review
Energy & Fuels
Liam Gollino, Thierry Pauporte
Summary: The rise and commercialization of perovskite solar cells are hindered by the toxicity of lead present in the perovskites as the solar light absorber. To counter this problem, lead can be fully (lead-free) or partially (lead-less) replaced by diverse elements, with partial replacement showing more promising results. Various methods to reduce the lead content in PSCs are discussed, including the partial replacement of lead by elements like Sn, Ge, Sr, and other transition metals. In addition, new families of perovskites based on the insertion of organic cations to replace lead and halogen units are presented, as well as atypical ways to reduce toxicity such as optimizing photon collection and using recycled lead.
Article
Energy & Fuels
Wolfgang Tress, Maximilian T. Sirtl
Summary: Cs2AgBiBr6 double perovskites show high potential in solar cells, but major changes in absorption onset are needed to achieve higher efficiency. This material poses various scientific questions, and exact recombination and charge transport processes are yet to be unraveled, preparing us for the development of double perovskite or perovskite-like materials.
Article
Energy & Fuels
Fuxiang Ji, Gerrit Boschloo, Feng Wang, Feng Gao
Summary: Lead-free halide double perovskites (HDPs) are attractive alternatives to address the toxicity issue in lead-based halide perovskites (APbX(3)). HDPs exhibit excellent stability, diverse combinations, and appealing optoelectronic features. However, the power conversion efficiency of HDP solar cells still lags behind that of lead-based counterparts. This review focuses on HDPs with intriguing electronic and optical properties, analyzes the current challenges in material properties and device fabrication, and highlights promising approaches to overcome these limitations.
Article
Chemistry, Multidisciplinary
Shuaifeng Hu, Pei Zhao, Kyohei Nakano, Robert D. J. Oliver, Jorge Pascual, Joel A. A. Smith, Takumi Yamada, Minh Anh Truong, Richard Murdey, Nobutaka Shioya, Takeshi Hasegawa, Masahiro Ehara, Michael B. B. Johnston, Keisuke Tajima, Yoshihiko Kanemitsu, Henry J. J. Snaith, Atsushi Wakamiya
Summary: In this study, it is found that the surface treatment of mixed tin-lead halide perovskite films with piperazine promotes charge extraction, and combined treatment with CPTA reduces hysteresis and improves efficiency and stability of solar cells.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Physical
Tianhao Wu, Xiao Liu, Xinhui Luo, Xuesong Lin, Danyu Cui, Yanbo Wang, Hiroshi Segawa, Yiqiang Zhang, Liyuan Han
Summary: Efficient and stable development of lead-free perovskite solar cells (PSCs) using tin as a promising candidate for high-performance, eco-friendly photovoltaic technology has been reviewed. Approaches toward efficiency improvement and challenges in reaching higher PCE and scalable production for tin PSCs have been discussed in this paper with the goal of accelerating their commercialization.
Review
Energy & Fuels
Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, James W. Ryan, Zhaoning Song, Bobby G. Barker, Tara P. Dhakal, Kenjiro Miyano
Summary: This review provides a brief overview of the chemistry and optical properties of halide perovskites, followed by a more detailed discussion on the advancements in halide perovskite solar cells. The effects of tuning the A-site and halide site, as well as approaches for defect passivation, are examined.
Review
Energy & Fuels
Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, James W. Ryan, Zhaoning Song, Bobby G. Barker, Tara P. Dhakal, Kenjiro Miyano
Summary: This review provides an overview of the rapid advancements in halide-perovskite-based solar cells (HPSCs) and discusses the chemistry, crystal structure, and optical properties of metal halide perovskite semiconductors. It focuses on the progress in improving HPSCs efficiencies through structural regulation, interfacial modulation, and thin-film engineering. The effects of tuning the monovalent A-site and the halide site are examined, and approaches for passivating defects and enhancing carrier transport are discussed. The implications for device performance, stability, and material toxicity are also explored, along with perspectives on the future directions and commercial feasibility of perovskite photovoltaic technologies.
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
Chemistry, Multidisciplinary
Hui Zhang, Shurong Wang, Huanhuan Yao, Zhiyue Tang, Liming Ding, Feng Hao
Summary: In this study, the phase separation of PEDOT and PSS chains in the film was controlled by ammonium carbamate (AC), resulting in a modified film with lower trap density and more facile carrier transport. As a result, tin halide perovskite solar cells (TPSCs) using the modified PEDOT:PSS film achieved a significantly improved short-circuit photocurrent (J(sc)), open-circuit voltage (V-oc), and power conversion efficiency (PCE).
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jiwei Liang, Xuzhi Hu, Chen Wang, Chao Liang, Cong Chen, Meng Xiao, Jiashuai Li, Chen Tao, Guichuan Xing, Rui Yu, Weijun Ke, Guojia Fang
Summary: This study reveals the origins and influences of metallic lead (Pb-0) in metal-halide perovskites, and provides a strategy for avoiding the formation of detrimental Pb-0 byproducts. This has significant implications for enhancing the performance of devices such as perovskite solar cells.
Article
Energy & Fuels
Daniele T. Cuzzupe, Seren Dilara Oz, JinKiong Ling, Elias Illing, Tobias Seewald, Rajan Jose, Selina Olthof, Azhar Fakharuddin, Lukas Schmidt-Mende
Summary: This study demonstrates the use of methylammonium chloride (MACl) to improve the stability and optoelectronic quality of quasi 2D/3D perovskite films based on tin. The addition of MACl enhances the power conversion efficiency by 37% and improves the stability and morphology of the films. The effects of MACl addition on the optical bandgap, crystal structure, and density of states are investigated, and the formation of a two-dimensional layer via the surface accumulation of PEA+ is shown for the first time.
Article
Chemistry, Multidisciplinary
Zheng Zhang, Muhammad Akmal Kamarudin, Ajay Kumar Baranwal, Gaurav Kapil, Shahrir Razey Sahamir, Yoshitaka Sanehira, Mengmeng Chen, Liang Wang, Qing Shen, Shuzi Hayase
Summary: Lead-free tin perovskite solar cells (PKSCs) have low efficiency due to rough surface morphology and high number of defects. A posttreatment strategy using sequential passivation with acetylacetone (ACAC) and ethylenediamine (EDA) is proposed to reduce trap density, enlarge grain size, and regulate energy level. The study achieves a promising 13% efficiency with better stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Energy & Fuels
Yipeng Han, Haibing Xie, Eng Liang Lim, Dongqin Bi
Summary: The quality of the perovskite film is crucial to the technological breakthrough of perovskite solar cells (PSCs). The two-step method is an effective way to achieve high quality and reproducibility of perovskite films. This article summarizes the reaction mechanism of the two-step method and introduces the strategies for preparing high-quality films. It also discusses the current issues and future research suggestions for the two-step method.
Review
Chemistry, Physical
Jinbo Zhao, Zuhong Zhang, Guixiang Li, Mahmoud H. H. Aldamasy, Meng Li, Antonio Abate
Summary: Due to its excellent optoelectronic properties, the power conversion efficiency of halide perovskite solar cells (PSCs) has rapidly increased to 25.7%. However, lead poisoning presents a significant obstacle to the deployment of PSCs. Tin is a promising alternative due to its similar electric and electronic properties to lead and lower toxicity. This review evaluates the characteristics and performance of quasi-2D Sn-based perovskites and proposes alternative strategies for improving the efficiency and stability of tin-based PSCs.
ADVANCED ENERGY MATERIALS
(2023)
Review
Energy & Fuels
Carina Pareja-Rivera, Diego Morett, Denisse Barreiro-Arguelles, Paul Olalde-Velasco, Diego Solis-Ibarra
Summary: Halide perovskites have made significant advancements in the fields of solar cells and LEDs in the last decade, with potential for other applications as well. Lead-free perovskites offer advantages such as reduced toxicity, improved stability, and diverse chemistry compared to lead-based materials.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Computer Science, Software Engineering
Yang Yan, Zhang Jinlong, Liu Ce, Zhang Haowen, Li Xiang
Summary: In this work, an algorithm for image visibility restoration based on color correction and composite channel prior is proposed. The algorithm effectively distinguishes and restores the visibility of haze and dust images through steps such as color correction, channel differences, and adaptive gamma correction.
Article
Computer Science, Artificial Intelligence
Jiangxin Yang, Lingyu Wang, Lifei Ren, Yanpeng Cao, Yanlong Cao
Summary: This paper proposes an end-to-end light field angular super-resolution network by exploiting structure and scene information to mitigate the trade-off between angular and spatial resolution. It utilizes a Light Field ResBlock to extract epipolar plane image features and scene features, and employs 4D deconvolution to upsample the angular resolution based on these features. The refinement network further exploits LF structure and scene information to alleviate artifacts induced by too little angular information.
APPLIED INTELLIGENCE
(2023)
Article
Engineering, Environmental
Wenming Chai, Weidong Zhu, Zeyang Zhang, Dawei Liu, Yufeng Ni, Zhicheng Song, Peng Dong, Dazheng Chen, Jincheng Zhang, Chunfu Zhang, Yue Hao
Summary: CsPbBr3 particles act as nucleation seeds to assist crystal growth and improve energy level alignment in CsPbI3 film, leading to enhanced carrier transport and high performance of CsPbI3 perovskite solar cells. The method demonstrated in this work holds potential for the commercialization of CsPbI3 PSCs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Lina Zheng, Ruixue Xu, Jinjin Zhang, Fangyong Yu, Claudia Li, Jaka Sunarso, Weimin Zhang, Xiuxia Meng, Naitao Yang
Summary: Patterned electrolyte surfaces were prepared using stereolithography 3D printing technology to investigate their effects on the cell performance of solid oxide fuel cells. The concavo-convex electrolyte showed significantly higher power density than the planar electrolyte, indicating that the geometry of the electrolyte surface plays a crucial role in enhancing cell performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Juer Liu, Li Huang, Jun An, Yiwei Ma, Yanling Cheng, Renchuan Zhang, Peng Peng, Yuanpu Wang, Min Addy, Paul Chen, Chi Chen, Yuhuan Liu, Guangwei Huang, Roger Ruan
Summary: High-pressure homogenization effectively improves the physicochemical and functional properties of almond hull powder, enhancing its antioxidant capacity.
JOURNAL OF FOOD PROCESS ENGINEERING
(2023)
Article
Physics, Mathematical
Dongxiang Chen, Xiaoli Li, Xiaoli Chen
Summary: In this paper, we prove the asymptotic stability of a specific stationary solution to 2D magnetohydrodynamic flow without resistivity in an infinite flat strip. Additionally, we establish some explicit decay rates.
JOURNAL OF MATHEMATICAL PHYSICS
(2023)
Article
Engineering, Chemical
Jingchao Zhang, Chengtao Tian, Ye Xu, Jinlin Chen, Linbo Xiao, Guiying Wu, Fang Jin
Summary: Silicone zeolite prepared from hexafluorosilicic acid is an effective adsorbent for fluoride removal. The morphology and structure of the prepared composites were characterized using XRD, FT-IR, and BET. Through studying the regeneration-adsorption cycle of zeolite, the mechanism of fluoride desorption and regeneration was explained, and the adsorption performance and regeneration adsorption performance were evaluated. The NaA zeolite regenerated with NH3 center dot H2O showed better fluorine re-adsorption performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Correction
Oncology
Yen-Hsiang Huang, Kuo-Hsuan Hsu, Jeng-Sen Tseng, Tsung-Ying Yang, Kun-Chieh Chen, Kang-Yi Su, Sung-Liang Yu, Jeremy J. W. Chen, Gee-Chen Chang
Article
Materials Science, Composites
Mengchao Shang, Jingjing Zhang, Zhou Zhou, Fei Shi, Zhiqiang Wang
Summary: In this study, rare earth Europium (Eu3+) complexes were successfully grafted onto carbon fibers, imparting them with fluorescence characteristics. The Eu-complex grafted carbon fibers (CEuCF) exhibited sharp red emission attributed to the 5D0-*7F1 and 5D0-*7F2 transitions of Eu3+. The surface roughness of the carbon fibers changed after the introduction of fluorescence properties. The fluorescence intensity of the carbon fibers increased initially and then decreased with increasing Eu content, reaching its peak at a molar ratio of 2 mmol. The energy transfer in the CEuCF was also discussed in detail. Enduing carbon fibers with luminescent properties could expand their application areas.
COMPOSITES COMMUNICATIONS
(2023)
Article
Electrochemistry
Yingping Bu, Yawen Zhang, Yingying Liu, Simin Li, Yanlin Zhou, Xuefen Lin, Zicong Dong, Renchun Zhang, Jingchao Zhang, Daojun Zhang
Summary: Hierarchical Co9S8-Ni3S2 composite hollow microspheres supported on nickel foam were synthesized by a simple two-step solvothermal method. The electrocatalyst exhibited high activity, good conductivity, and satisfactory stability, making it effective for oxygen evolution reaction.
Article
Computer Science, Artificial Intelligence
Emadeldeen Eldele, Mohamed Ragab, Zhenghua Chen, Min Wu, Chee-Keong Kwoh, Xiaoli Li, Cuntai Guan
Summary: Sleep staging is crucial for diagnosing and treating sleep disorders. Current data-driven deep learning models for automatic sleep staging have limitations when dealing with real-world scenarios. To overcome these limitations, this study proposes a novel adversarial learning framework called ADAST, which addresses the domain shift problem in the unlabeled target domain. The proposed framework outperforms state-of-the-art methods in six cross-domain scenarios.
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTATIONAL INTELLIGENCE
(2023)
Article
Chemistry, Physical
Xiaohui Sun, Xiaofeng Yi, Jian Zhang, Lei Zhang
Summary: This study demonstrates the controllable formulation and regulation of variety and connection modes of cuboidal {M4X4} building units (M=In, Ni; X= O, Cl) by exploiting solvent effect and organic-ligand-induced effect. The formation of the In10Ni8-oxo cluster with a wheel-shaped architecture is achieved with the assistance of aromatic carboxylates, presenting the largest size record in the realm of InOCs. The In10Ni8-oxo cluster shows high reverse saturable absorption, making it suitable as an optical limiting material.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kalpana Chintakrinda, Nagaraju Narayanam, Guang-Hui Chen, Jian Zhang, Lei Zhang
Summary: Two titanium-oxo clusters with similar nuclearity but different surface-decorated ligands were synthesized using an ionothermal reaction. These clusters exhibited varying activities for photocatalytic degradation and distinct photocurrent responses, providing valuable insights into the design of Ti-oxo molecular clusters.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Endocrinology & Metabolism
Yanli Yi, Yan Luo, Ruijing He, Haoyun Zhang, Zai Wang, Xianqiao Li, Jingchao Zhang, Zhiqiang Cui
Summary: This study investigated the molecular mechanism of microRNA-425-5p in promoting breast cancer cell proliferation. It identified new targets of miR-425-5p in breast cancer and provided potential biomarkers and drug targets for clinical diagnosis and treatment.
JOURNAL OF BIOLOGICAL REGULATORS AND HOMEOSTATIC AGENTS
(2023)
Article
Chemistry, Physical
Melissa Guarino-Hotz, Jeremy L. Barnett, Kai-Chun Chou, Allison A. Win, Heng Zhang, Chengyu Song, Scott R. J. Oliver, Jin Z. Zhang
Summary: Metal halide perovskites, such as methylammonium lead bromide (MAPbBr3), have attracted significant attention for their interesting photoelectric properties. In this study, two different types of methylammonium lead bromide magic-sized clusters (MSCs) were synthesized using different methods and their optical properties were characterized. It was found that the heated LARP (HLARP) synthesis method resulted in MSCs with higher photoluminescence (PL) quantum yield and improved stability in both solution and solid state forms. The addition of a non-coordinating matrix, paraffin, further enhanced the stability of the MSCs. The MSCs were analyzed using various techniques, including Raman spectroscopy, X-ray diffraction, and transmission electron microscopy, to confirm their structure and properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
