Physics, Condensed Matter

Article Chemistry, Physical

Single-junction organic solar cells with over 19% efficiency enabled by a refined double-fibril network morphology

Lei Zhu, Ming Zhang, Jinqiu Xu, Chao Li, Jun Yan, Guanqing Zhou, Wenkai Zhong, Tianyu Hao, Jiali Song, Xiaonan Xue, Zichun Zhou, Rui Zeng, Haiming Zhu, Chun-Chao Chen, Roderick C. MacKenzie, Yecheng Zou, Jenny Nelson, Yongming Zhang, Yanming Sun, Feng Liu

Summary: Morphological control of donor and acceptor domains is crucial for efficient organic photovoltaics, and this study demonstrates a double-fibril network strategy to achieve a high power conversion efficiency of 19.3%.

NATURE MATERIALS (2022)

Review Chemistry, Multidisciplinary

Emerging S-Scheme Photocatalyst

Liuyang Zhang, Jianjun Zhang, Huogen Yu, Jiaguo Yu

Summary: This article presents the superiority and design criteria of the emerging S-scheme heterojunction in photocatalysis. By overcoming the challenges faced by single photocatalysts through the construction of heterojunctions, the S-scheme heterojunction has demonstrated its potential in improving photocatalysis. The critical understanding of the curved Fermi level in the S-scheme heterojunction interface and the current challenges and prospects of S-scheme heterojunction photocatalysts are also discussed.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Realizing 19.05% Efficiency Polymer Solar Cells by Progressively Improving Charge Extraction and Suppressing Charge Recombination

Kaien Chong, Xiaopeng Xu, Huifeng Meng, Jingwei Xue, Liyang Yu, Wei Ma, Qiang Peng

Summary: This work demonstrates highly efficient polymer solar cells by improving charge extraction and suppressing charge recombination through side-chain engineering, adopting ternary blends, and introducing volatilizable solid additives. The optimized molecular structure and blend morphology lead to improved fill factor and power conversion efficiency.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Single-Junction Organic Solar Cells with 19.17% Efficiency Enabled by Introducing One Asymmetric Guest Acceptor

Rui Sun, Yao Wu, Xinrong Yang, Yuan Gao, Zeng Chen, Kai Li, Jiawei Qiao, Tao Wang, Jing Guo, Chao Liu, Xiaotao Hao, Haiming Zhu, Jie Min

Summary: The ternary strategy is an effective approach to achieve high-efficiency OSCs, but the nonradiative voltage loss limits further efficiency improvements. By incorporating an asymmetric guest acceptor BTP-2F2Cl, the OSCs show improved photoluminescence quantum yield, exciton diffusion length, and absorption spectrum, leading to enhanced power conversion efficiency.

ADVANCED MATERIALS (2022)

Review Chemistry, Multidisciplinary

Dimensional Design and Core-Shell Engineering of Nanomaterials for Electromagnetic Wave Absorption

Zhengchen Wu, Han-Wen Cheng, Chen Jin, Bintong Yang, Chunyang Xu, Ke Pei, Huibin Zhang, Ziqi Yang, Renchao Che

Summary: Electromagnetic wave absorption materials with core-shell structures can enhance performance through interfacial polarization, conduction networks, magnetic coupling, and magnetic-dielectric synergy. This review outlines the recent advances in low-dimensional core-shell electromagnetic wave absorption materials and discusses notable examples. Key information regarding dimensional design, structural engineering, performance, and structure-function relationship is comprehensively summarized.

ADVANCED MATERIALS (2022)

Review Chemistry, Multidisciplinary

Heterointerface Engineering in Electromagnetic Absorbers: New Insights and Opportunities

Leilei Liang, Weihua Gu, Yue Wu, Baoshan Zhang, Gehuan Wang, Yi Yang, Guangbin Ji

Summary: Electromagnetic absorbers are playing increasingly essential role in the electronic information age and even towards the coming intelligent era. The advantages of heterointerface engineering and its EM characteristics inject vitality for designing high-efficiency EM absorbers, but there are still huge challenges in understanding and reinforcing these interface effects.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Binary Organic Solar Cells Breaking 19% via Manipulating the Vertical Component Distribution

Yanan Wei, Zhihao Chen, Guanyu Lu, Na Yu, Congqi Li, Jinhua Gao, Xiaobin Gu, Xiaotao Hao, Guanghao Lu, Zheng Tang, Jianqi Zhang, Zhixiang Wei, Xin Zhang, Hui Huang

Summary: The variation of the vertical component distribution has a significant impact on the photovoltaic performance of organic solar cells. This study demonstrates that sequential deposition of materials can improve the efficiency of solar cells.

ADVANCED MATERIALS (2022)

Review Chemistry, Multidisciplinary

Advanced Flame-Retardant Methods for Polymeric Materials

Bo-Wen Liu, Hai-Bo Zhao, Yu-Zhong Wang

Summary: Most organic polymeric materials are highly flammable, causing significant damages to human life and property through the large amounts of smoke, toxic gases, heat, and melt drips produced during burning. Conventional flame-retardant methods are facing difficulties in meeting the increasing flame-retardant requirements. Advanced flame-retardant methods, such as all-in-one intumescence and nanotechnology, have been developed to provide potential solutions to these challenges.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Multifunctional Superelastic, Superhydrophilic, and Ultralight Nanocellulose-Based Composite Carbon Aerogels for Compressive Supercapacitor and Strain Sensor

Huayu Liu, Ting Xu, Chenyang Cai, Kun Liu, Wei Liu, Meng Zhang, Haishun Du, Chuanling Si, Kai Zhang

Summary: In this study, conductive carbon aerogels with ultralow density and superhydrophilicity were developed based on synergistic hydrogen bonding, electrostatic interaction, and pi-pi interaction within regularly arranged layered porous structures. These aerogels exhibit high compressibility, fatigue resistance, excellent capacitive performance, and can be used as strain sensors.

ADVANCED FUNCTIONAL MATERIALS (2022)

Review Chemistry, Multidisciplinary

Recent Advances in Design of Electrocatalysts for High-Current-Density Water Splitting

Yuting Luo, Zhiyuan Zhang, Manish Chhowalla, Bilu Liu

Summary: The electrochemical water splitting technology is crucial for achieving global carbon neutrality. High-performance electrocatalysts that can operate at high current densities are essential for the industrial implementation of this technology. Recent advancements in this field have led to the development of various catalysts designed specifically for high current densities (> 200 mA cm(-2)). This article discusses these recent advances and summarizes the key factors that influence the catalytic performance in high current density electrocatalysis, including catalyst dimensionality, surface chemistry, electron transport path, morphology, and catalyst-electrolyte interaction. It highlights the importance of a multiscale design strategy that considers these factors comprehensively for developing high current density electrocatalysts. The article also provides insights into the future directions of this emerging field.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

MIL-96-Al for Li-S Batteries: Shape or Size?

Pengbiao Geng, Lei Wang, Meng Du, Yang Bai, Wenting Li, Yanfang Liu, Shuangqiang Chen, Pierre Braunstein, Qiang Xu, Huan Pang

Summary: Metal-organic frameworks with controllable shapes and sizes, specifically MIL-96-Al crystals in hexagonal platelet, hexagonal bipyramidal, and hexagonal prismatic bipyramidal shapes, were prepared successfully using cosolvent methods. The shape and particle size of the MOF crystals were found to influence the adsorption of lithium polysulfides, impacting the initial capacity in Li-S batteries. These findings suggest a new strategy for designing sulfur hosts in Li-S batteries.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Simultaneous Interfacial Modification and Crystallization Control by Biguanide Hydrochloride for Stable Perovskite Solar Cells with PCE of 24.4%

Zhuang Xiong, Xiao Chen, Bo Zhang, George Omololu Odunmbaku, Zeping Ou, Bing Guo, Ke Yang, Zhipen Kan, Shirong Lu, Shanshan Chen, Nabonswende Aida Nadege Ouedraogo, Yongjoon Cho, Changduk Yang, Jiangzhao Chen, Kuan Sun

Summary: In this study, a multifunctional interfacial material, BGCl, was introduced to modify the interface of perovskite solar cells. The BGCl improved electron extraction and crystal growth of perovskite by chemically linking to SnO2 and anchoring PbI2. This modification led to better energetic alignment, reduced interfacial defects, and homogeneous perovskite crystallites, resulting in highly efficient and stable performance.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

A High-Performance, Sensitive, Wearable Multifunctional Sensor Based on Rubber/CNT for Human Motion and Skin Temperature Detection

Mengzhuan Lin, Zhongjie Zheng, Li Yang, Mingshan Luo, Lihua Fu, Baofeng Lin, Chuanhui Xu

Summary: A hydrogen bond cross-linked network based on XSBR and SS non-covalently modified CNTs has been designed and fabricated into multi-functional sensors, with high stretchability, strength, and sensitivity, as well as the ability to measure body temperature.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Charge Relays via Dual Carbon-Actions on Nanostructured BiVO4 for High Performance Photoelectrochemical Water Splitting

Yuxiang Wang, Daoming Chen, Jingnan Zhang, M-Sadeeq (Jie Tang) Balogun, Pingshan Wang, Yexiang Tong, Yongchao Huang

Summary: Carbon doping and introduction of carbon quantum dots can improve the electronic conductivity and light absorption capability of BiVO4, thus enhancing the separation and transfer of photo-generated charges. Electroplating a polyaniline layer onto the catalyst can sustain a stable photocurrent density for a long time.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Achieving 19% Power Conversion Efficiency in Planar-Mixed Heterojunction Organic Solar Cells Using a Pseudosymmetric Electron Acceptor

Wei Gao, Feng Qi, Zhengxing Peng, Francis R. Lin, Kui Jiang, Cheng Zhong, Werner Kaminsky, Zhiqiang Guan, Chun-Sing Lee, Tobin J. Marks, Harald Ade, Alex K-Y Jen

Summary: By adopting the asymmetric selenium substitution strategy and using a pseudosymmetric electron acceptor, the power conversion efficiency of planar-mixed heterojunction organic solar cells (PMHJ OSCs) can be significantly improved. The increased dielectric constant and improved dimer packing lead to lower exciton binding energy, more efficient exciton dissociation, and reduced radiative recombination loss. These findings provide an effective way to develop highly efficient acceptor materials for OSCs.

ADVANCED MATERIALS (2022)

Review Chemistry, Multidisciplinary

Direct Ink Writing: A 3D Printing Technology for Diverse Materials

M. A. S. R. Saadi, Alianna Maguire, Neethu T. Pottackal, Md Shajedul Hoque Thakur, Maruf Md Ikram, A. John Hart, Pulickel M. Ajayan, Muhammad M. Rahman

Summary: Direct ink writing (DIW) is a versatile 3D printing technique that allows printing of a wide range of materials. This comprehensive review explores the process of DIW printing of complex 3D structures and discusses its diverse applications in various industries.

ADVANCED MATERIALS (2022)

Review Chemistry, Multidisciplinary

Prussian Blue Analogues for Sodium-Ion Batteries: Past, Present, and Future

Jian Peng, Wang Zhang, Qiannan Liu, Jiazhao Wang, Shulei Chou, Huakun Liu, Shixue Dou

Summary: This review provides an overview of Prussian blue analogues (PBAs), including material-level optimization and their prospects in practical sodium-ion batteries. It aims to bridge the gap between laboratory research and commercial application.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Oxygen Vacancy-Induced Dielectric Polarization Prevails in the Electromagnetic Wave-Absorbing Mechanism for Mn-Based MOFs-Derived Composites

Yue Liu, Xinfeng Zhou, Zirui Jia, Hongjing Wu, Guanglei Wu

Summary: Polymeric metal-organic framework (MOF)-derived composites are functional materials with exceptional chemical homogeneity, designable components, and adjustable pore size. This study presents the design of laminate-stacked sphere-shaped trimetallic CoNiMn-MOFs and the successful synthesis of CoNi/MnO@C composites, which exhibit excellent electromagnetic wave-absorbing performance. The modulation of oxygen and Mn vacancies through the introduction of heteroatoms and changes in annealing temperature contributes to the improvement of electromagnetic loss capacity.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Hierarchical Engineering of Double-Shelled Nanotubes toward Hetero-Interfaces Induced Polarization and Microscale Magnetic Interaction

Panbo Liu, Yi Wang, Guozheng Zhang, Ying Huang, Ruixuan Zhang, Xianhu Liu, Xuefeng Zhang, Renchao Che

Summary: Hierarchical double-shelled nanotubes (DSNTs) exhibit efficient microwave absorption due to their desirable heterogeneous interfaces, multiple magnetic heteroatomic components, and hollow hierarchical microstructures.

ADVANCED FUNCTIONAL MATERIALS (2022)

Review Chemistry, Multidisciplinary

Critical Review on Low-Temperature Li-Ion/Metal Batteries

Nan Zhang, Tao Deng, Shuoqing Zhang, Changhong Wang, Lixin Chen, Chunsheng Wang, Xiulin Fan

Summary: This article presents a comprehensive research on the key factors contributing to the poor low-temperature performance of LIBs and proposes strategies and solutions to improve it.

ADVANCED MATERIALS (2022)