Article
Energy & Fuels
Rui Q. Yang, Wenxiang Huang, Michael B. Santos
Summary: This paper reviews the research activities and progress of narrow bandgap PV cells for TPV systems, summarizes their device performance and material properties, and considers factors affecting device performance. Interband cascade PV devices are presented as a promising route to overcome limiting factors in conventional narrow bandgap TPV devices, with an explanation of their operation principle, special features, theoretical modeling, and experimental results. A perspective and outlook are also provided in the review process.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Multidisciplinary
Lin Shao, Ling Hong, Yunhao Cao, Haoran Tang, Yijun Huang, Xinxin Xia, Yuanqing Bai, Minghao Dong, Xin Zhang, Xinhui Lu, Xiye Yang, Chunchen Liu, Fei Huang, Yong Cao
Summary: Near-infrared (NIR) organic photodetectors (OPDs) are improved by using spiro-conjugated core donors to construct narrow-bandgap non-fullerene acceptors (NFAs). The resulting NFAs, SPT-4F and tSPT-4F, exhibit enhanced absorption beyond 1000 nm due to their rigid conformation and superior intermolecular stacking. The tSPT-4F-based device achieves the best performance with high detectivity and responsivity at 1010 nm. This study provides a molecular design strategy for highly detective NIR OPDs.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xuexiang Huang, Lifu Zhang, Yujun Cheng, Jiyeon Oh, Chunquan Li, Bin Huang, Lin Zhao, Jiawei Deng, Youhui Zhang, Zuoji Liu, Feiyan Wu, Xiaotian Hu, Changduk Yang, Lie Chen, Yiwang Chen
Summary: A facile terpolymer design strategy is adopted to improve the compatibility between advanced NBG Y-series acceptors and NBG polymer donor PCE10. The introduction of F or Cl atom functionalized BDT into the PCE10 matrix to afford terpolymers results in significant breakthroughs for both opaque and semitransparent devices. Record power conversion efficiencies were achieved by the terpolymer-based devices, demonstrating the successful balance of PCE and AVT.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Fenghua Xu, Zhenzhen Li, Rilong Zhu, Yanmeng Chu, Zhipeng Pan, Sihong Xia, Junwei Fu, Zewen Xiao, Xiaobo Ji, Min Liu, Baicheng Weng
Summary: A narrow band-gapped perovskite oxysulfide, Ba2Bi1-xTa1-xO6-ySy, has been developed for CO2 photoreduction to produce ethane. It enhances charge separation, transfer, and reduces reaction energy, leading to high yield and selectivity for photocatalytic CO2 reduction. Additionally, the catalyst demonstrates excellent stability for both photocatalytic water oxidation and CO2 reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Physics, Multidisciplinary
Xiao-Hui Li, Yi-Xuan Guo, Yujie Ren, Jia-Jun Peng, Ji-Shu Liu, Cong Wang, Han Zhang
Summary: In this paper, the progress of narrow-bandgap materials in terms of nonlinear optical properties, band structure, preparation methods, and applications is reviewed. These materials exhibit strong nonlinear absorption characteristics when interacting with short pulse lasers, leading to optical limiting or saturable absorption. Some of these materials have been utilized for generating ultrashort pulses.
FRONTIERS OF PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Ning Song, Shaopeng Chen, Xiaowei Fan, Yuhui Tan, Yunzhi Tang, Lijuan Wang, Juan Liao, Zhen Sun
Summary: Zero-dimensional perovskites have attracted extensive attention recently due to their unique structural properties. In this study, an organic-inorganic hybrid perovskite compound with excellent reversible phase transition and dielectric switching properties was reported. It was found that the introduction of fluorine atoms reduced the symmetry of the structure, resulting in a narrow bandgap and distinct dielectric anomalies. UV-vis absorption spectra and density-functional theory calculations confirmed the bandgap, revealing the main contribution of the inorganic [SbBr6] octahedral framework. This work highlights the importance of halogen substitution in the synthesis of novel organic-inorganic hybrid perovskite phase-transition materials.
Article
Chemistry, Multidisciplinary
Jingwei Mu, Shaoyun Huang, Zhi-Hai Liu, Weijie Li, Ji-Yin Wang, Dong Pan, Guang-Yao Huang, Yuanjie Chen, Jianhua Zhao, H. Q. Xu
Summary: The research team successfully demonstrated a highly tunable linear quadruple QD system in a nanowire and obtained characteristic two-dimensional charge stability diagrams through electron transport measurements, providing important experimental evidence for studying multiple QD systems.
Article
Chemistry, Multidisciplinary
Siying Li, Xin Yuan, Qilin Zhang, Bin Li, Yuxiang Li, Jianguo Sun, Yifeng Feng, Xuning Zhang, Zang Wu, Huan Wei, Mei Wang, Yuanyuan Hu, Yuan Zhang, Han Young Woo, Jianyu Yuan, Wanli Ma
Summary: Two narrow-bandgap block conjugated polymers, PBDB-T-b-PIDIC2T and PBDB-T-b-PTY6, are designed and synthesized for single-component organic solar cells. These polymers exhibit better light harvesting, improved efficiency, low energy loss, and excellent stability in SCOSCs. Their structural relationship with binary counterparts provides a framework for further exploring molecular features impacting photovoltaic performance.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhizhen Chang, Zhengjun Lu, Wei Deng, Yandi Shi, Yuye Sun, Xiujuan Zhang, Jiansheng Jie
Summary: Narrow-bandgap Sn-Pb mixed perovskite single crystals show great potential as photoactive materials for efficient and low-cost near-infrared (NIR) photodetectors. However, the phase separation issue during crystallization process leads to the degradation of optical and electronic properties. In this study, a low-temperature space-confined technique (LT-SCT) is proposed to reduce the crystallization velocities and create pure-phase (FASnI(3))(0.1)(MAPbI(3))(0.9) single crystals. These crystals exhibit excellent crystallinity, high hole mobility, and low surface trap density, enabling their application in self-powered NIR photodetectors with outstanding performance. The work contributes to the development of Sn-Pb mixed perovskite single crystals and offers a promising candidate for efficient and low-cost NIR photodetection.
Review
Chemistry, Physical
Hao-Wen Cheng, Yepin Zhao, Yang Yang
Summary: Solar energy is gaining attention as an alternative solution to global energy demands, with semitransparent organic photovoltaics (ST-OPVs) receiving focus for their transparency and power conversion efficiency. Recent developments in ST-OPVs center around narrow-bandgap donors and non-fullerene acceptors, utilizing various strategies to improve performance and providing insightful guidelines for future advancements.
ADVANCED ENERGY MATERIALS
(2022)
Article
Mathematics, Interdisciplinary Applications
Wei Shen, Makoto Ohsaki, Jingyao Zhang
Summary: In this study, the second-order virtual element method (VEM) is used for 2D contact analysis in the context of linear elasticity and small deformation. The VEM allows non-matching meshes at the contact interface to be transformed into matching meshes, enabling node-to-node contact discretization. Frictional contact is considered as a stick condition with no tangential movement allowed. The Lagrange multiplier method and the penalty method are used to impose normal and frictional contact constraints respectively, and the candidate contact interface is determined through adaptive trial and error tests as well as prior experience. Numerical examples demonstrate the effectiveness of the proposed method in handling complex non-matching meshes at the contact interface, and the method is also applied to investigate the properties of shear walls with fitting joints.
COMPUTATIONAL MECHANICS
(2022)
Article
Physics, Multidisciplinary
A. Popoola, Y. A. Odusote, S. T. Ogunjo, R. A. Distasio
Summary: This study investigated the phonon spectrum, band structure, mechanical and thermoelectric properties of two compounds (BaSiSr and IrBiZr) using density functional theory. The calculated bandgap sizes of both compounds are comparable, but IrBiZr showed superior performance in elastic, thermodynamic and thermoelectric parameters.
Article
Chemistry, Physical
Kazuhiro Manseki, Saeid Vafaei, Loren Scott, Katelyn Hampton, Nagisa Hattori, Kosuke Ohira, Kyle Prochotsky, Stephen Jala, Takashi Sugiura
Summary: We have demonstrated the identification of the structure and narrow-bandgap property of hybridized SnO/SnO2 nanoparticles derived from tin(II) oxalate. By changing the calcination temperatures, we observed the simultaneous formation of 1D SnO/SnO2 in rod particles. It was also found that Sn(II) can be introduced by adjusting the concentration of Sn(II) salt and the maximum temperature in calcination. These materials with optical property would be beneficial for the design of photoenergy conversion systems.
Article
Chemistry, Multidisciplinary
Jia-chang Zhuang, Wen-juan Wei, Ning Song, Yun-zhi Tang, Yu-hui Tan, Ding-chong Han, Yu-kong Li
Summary: The research identifies the photophysical properties of a two-dimensional organic-inorganic hybrid perovskite, showing solid phase transition with significant entropy change, narrow bandgap, and excellent luminescence properties, paving the way for the design of multifunctional semiconductors.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Materials Science, Multidisciplinary
Yiwen Wu, Lei Qiu, Jun Liu, Mengyu Guan, Zhigao Dai, Guogang Li
Summary: This article reviews the recent progress of narrow bandgap metal halide perovskites (MHPs), highlighting the structures, synthesis methods, characterizations, and optoelectronic applications. It also discusses the challenges in long-term stability and fundamental properties, and proposes new opportunities for broader fundamental researches and practical applications in the future.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhao Gao, Kai Wang, Fangming Liu, Cunfang Feng, Xin He, Jinyu Li, Bing Yang, Bo Zou, Ping Lu
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Polymer Science
Jinyu Li, Xiao Han, Qing Bai, Tong Shan, Ping Lu, Yuguang Ma
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2017)
Article
Chemistry, Physical
Huanhuan Zhang, Mingming Yao, Jinbei Wei, Yuewei Zhang, Shitong Zhang, Yu Gao, Jinyu Li, Ping Lu, Bing Yang, Yuguang Ma
ADVANCED ENERGY MATERIALS
(2017)
Article
Engineering, Biomedical
Yalun Wang, Xiao Han, Wang Xi, Jinyu Li, Anna Wang Roe, Ping Lu, Jun Qian
ADVANCED HEALTHCARE MATERIALS
(2017)
Article
Chemistry, Physical
Cunfang Feng, Jinyu Li, Xiao Han, Xin He, Liqun Liu, Xiaoxiao Li, Xiaoyi Sun, Ping Lu, Yuguang Ma
FARADAY DISCUSSIONS
(2017)
Article
Materials Science, Multidisciplinary
Chu Wang, Xiang-Long Li, Yu Gao, Lu Wang, Shitong Zhang, Lijuan Zhao, Ping Lu, Bing Yang, Shi-Jian Su, Yuguang Ma
ADVANCED OPTICAL MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Jinyu Li, Tong Shan, Mingming Yao, Yu Gao, Xiao Han, Bing Yang, Ping Lu
JOURNAL OF MATERIALS CHEMISTRY C
(2017)
Article
Chemistry, Applied
Xiaohui Tang, Xiang-Long Li, Haichao Liu, Yu Gao, Yue Shen, Shitong Zhang, Ping Lu, Bing Yang, Shi-Jian Su, Yuguang Ma
Article
Biochemistry & Molecular Biology
Xiaoyi Sun, Lele Zhao, Xiao Han, Hui Liu, Yu Gao, Yanchun Tao, Haiquan Zhang, Bing Yang, Ping Lu
Article
Chemistry, Analytical
Lan Yu, Yingying Zhang, Hongliang Liu, Jing Xu, Wenlong Hou, Hailong Wang, Ping Lu, Bo Liang, Ruijun Zhang, Haiquan Zhang
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Chemistry, Multidisciplinary
Yunzhong Wang, Zihan He, Gan Chen, Tong Shan, Wangzhang Yuan, Ping Lu, Yongming Zhang
CHINESE CHEMICAL LETTERS
(2017)
Article
Chemistry, Applied
Zhe Zhang, Yu Gao, He Liu, Qing Bai, Jinyu Li, Liqun Liu, Changfeng Wu, Bing Yang, Kai Wang, Bo Zou, Yan Wang, Ping Lu
Article
Chemistry, Applied
Tong Shan, Zhao Gao, Xiangyang Tang, Xin He, Yu Gao, Jinyu Li, Xiaoyi Sun, Yulong Liu, Haichao Liu, Bing Yang, Ping Lu, Yuguang Ma
Article
Chemistry, Multidisciplinary
Hu Dehua, Liu He, Li Xiaoxiao, Sun Xiaoyi, Lu Fang, Bai Qing, Lu Ping
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2017)
Article
Chemistry, Multidisciplinary
Xiangyang Tang, Tong Shan, Qing Bai, Hongwei Ma, Xin He, Ping Lu
CHEMISTRY-AN ASIAN JOURNAL
(2017)
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
