Article
Materials Science, Multidisciplinary
Peiyao Xue, Jingming Xin, Guanyu Lu, Boyu Jia, Heng Lu, Guanghao Lu, Wei Ma, Ray P. S. Han, Xiaowei Zhan
Summary: This study investigated the performance evaluation parameters of semitransparent organic solar cells (ST-OSCs), namely, the average visible transmittance (AVT) and power conversion efficiency (PCE). By reducing the donor content, light absorption in the visible region can be decreased and the AVT values of ST-OSCs can be increased. However, a lower donor content affects exciton generation, exciton dissociation, and charge transport, thereby limiting the PCEs of the cells.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Polymer Science
Yiming Li, Jiaqing Liu, Ke Shui, Fan Xie, Xuan Li, Yi Lin, Zehua Zhou, Qing Zhang, Fengqi Guo, Lijun Li, Jinchong Xiao, Meng Wang, Chang-Qi Ma
Summary: In this study, a one-step protocol was developed to synthesize end-capped polymers with control over molecular weight. The research found a linear relationship between number-average molecular weight and weight-average molecular weight. The use of 4'-bromobenzo-18-crown-6 reduced end-group defects and improved the performance of the solar cells.
Article
Polymer Science
Lu Zhang, Hongxiang Li, Kefeng Zhao, Tao Zhang, Duo Liu, Sichun Wang, Fan Wu, Qiang Zhang, Yanchun Han
Summary: Conjugated polymers are considered crucial for stretchable electronics, but understanding the film morphology that maintains charge mobility under cycling deformation requires further research. This study found that the co-deformation of crystalline domains and amorphous regions effectively dissipates strain energy. By altering the interaction parameter between solvent and sidechain, three different film morphologies of a diketopyrrolopyrrole-based polymer were developed. The film with medium crystallinity exhibited 100% mobility retention under 100% strain and after 100 stretch-release cycles at 50% strain, while films with high and low crystallinity showed decreased mobility. The optimized performance of the film with dispersed crystallites embedded in an amorphous matrix provides an efficient charge transport network. This research contributes to manipulating the mechanical and electrical properties of conjugated polymers.
Article
Multidisciplinary Sciences
Huazhe Liang, Xingqi Bi, Hongbin Chen, Tengfei He, Yi Lin, Yunxin Zhang, Kangqiao Ma, Wanying Feng, Zaifei Ma, Guankui Long, Chenxi Li, Bin Kan, Hongtao Zhang, Oleg A. Rakitin, Xiangjian Wan, Zhaoyang Yao, Yongsheng Chen
Summary: Given the ease of synthesis and polarization of bromine compared to homomorphic fluorine and chlorine, it is surprising that high-performance brominated small molecule acceptors are rare. This may be due to undesirable film morphologies caused by steric hindrance and excessive crystallinity. To overcome this, three acceptors were constructed with stepwise bromination on central units to enhance intermolecular packing, crystallinity, and dielectric constant without damaging favorable intermolecular packing through end groups. As a result, PM6:CH22-based binary organic solar cells achieved the highest efficiency of 19.06% for brominated acceptors, and a record-breaking efficiency of 15.70% when the active layers were further thickened to around 500 nm. By exhibiting such a rare high-performance brominated acceptor, this work highlights the potential for achieving record-breaking organic solar cells through delicate bromination.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
He Li, Tiannan Yang, Yao Zhou, Ding Ai, Bin Yao, Yang Liu, Li Li, Long-Qing Chen, Qing Wang
Summary: The study reveals the important role of dielectric match between filler and polymer matrix on the capacitive performance of ferroelectric polymer composites. By using Al2O3 nanoplates embedded in solution-processed ferroelectric polymer nanocomposites, significantly improved breakdown strength and discharged energy density were achieved, along with exceptional charge-discharge efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Physical
Sisi Wang, Zhipeng Zhang, Zikang Tang, Chenliang Su, Wei Huang, Ying Li, Guichuan Xing
Summary: The comprehensive review of polymer strategy in perovskite solar cells includes categorization, introduction methods, functions, and future research directions aimed at improving efficiency and stability.
Article
Chemistry, Applied
Yu Wu, Sunmeng Huang, Xin Liu, Yu Jiang, Daohong Zhang
Summary: An efficient and environmentally friendly UV-curable strategy for the fabrication of strong, flexible, and transparent polyurethane-polyacrylate coatings is presented. The coatings exhibit outstanding mechanical properties and UV-protective performance, making them suitable for applications such as automotive glass films.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Physical
Pegah Ghamari, Muhammad Rizwan Niazi, Dmitrii F. Perepichka
Summary: Molecular doping with nitrofluorene acceptors has been shown to significantly enhance the performance of polymer OFETs; doping resulted in a nearly 5-fold enhancement in the saturation field-effect mobility; NF dopants were found to mitigate charge carrier traps, lower contact resistance, and maximize structural order of the polymer films.
CHEMISTRY OF MATERIALS
(2021)
Article
Multidisciplinary Sciences
Panpan Guan, Yecheng Zou, Ming Zhang, Wenkai Zhong, Jinqiu Xu, Jianlong Lei, Han Ding, Wei Feng, Feng Liu, Yongming Zhang
Summary: In this study, the morphology evolution of perfluorosulfonic acid (PFSA) proton exchange membranes (PEMs) was investigated using in situ synchrotron scattering. A stream-reservoir morphology was observed, which facilitates efficient proton transport. The short-side-chain (SSC) PFSA PEMs prepared under morphology optimization showed significantly improved proton conductivity and mechanical properties, making them suitable for high-temperature low-humidity fuel cell applications. These findings contribute to the understanding of the structure-property relationship of PFSAs and have important implications for the development of high-performance PEMs.
Article
Materials Science, Multidisciplinary
Chenglong Li, Wei Wang, Chun Zhan, Qisheng Zhou, Defu Dong, Shengqiang Xiao
Summary: This study investigates the method of modulating the compatibility of host-dopant pairs in n-type organic semiconductors by changing the structure and lipophilicity of molecular n-dopants. A new n-dopant JLBI-H showed excellent performance in doping fullerene derivatives, demonstrating the influence of structural modification on doping effects.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Tanvi Upreti, Constantin Tormann, Martijn Kemerink
Summary: A loss channel in organic photovoltaic cells, caused by the thermalization of charge carriers in the density of states due to energetic disorder, has been demonstrated to be mitigated through carefully designed morphologies. The presence of funnel-shaped domains promotes directed transport of charge carriers, leading to improved performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Lars Vogelsang, Tobias Birk, Fabian Paschke, Anja Bauer, Vivien Enenkel, Lukas M. Holz, Mikhail Fonin, Rainer F. Winter
Summary: We report on the synthesis and characterization of seven new ferrocenyl-modified compounds and their use as molecular switching units on a Ag(111) surface. These units may offer a new approach to molecule-based high-density information storage and processing. We found that the ferrocenyl residues oxidize prior to the oxidation of the TAT core, and the oxidized complexes exhibit multiple electronic excitations. Moreover, the substitution pattern affects the switching behavior.
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Armin Richter, Ralph Muller, Jan Benick, Frank Feldmann, Bernd Steinhauser, Christian Reichel, Andreas Fell, Martin Bivour, Martin Hermle, Stefan W. Glunz
Summary: Front- and back-junction silicon photovoltaics dominate the market due to lower manufacturing complexity, but achieving efficiency improvements remains challenging. An optimized design by Richter et al. has led to a 26.0%-efficient cell. While interdigitated back-contact cells offer the highest efficiency, both-sides-contacted cells are preferred in industrial production for their simplicity.
Article
Chemistry, Physical
Jian Song, Hongjin Li, Zhongpo Zhou, Yonggang Yang, ChaoChao Qin, Yufang Liu
Summary: The theoretical investigation of a series of new SF materials, BPEA derivatives, reveals encouraging advantages and interesting laws in terms of key energy conditions. Potential BPEA derivatives with stable lowest triplet states and mild exothermic SF processes are predicted. Terminal substituents with both strong electron-withdrawing and electron-donating abilities and large longitudinal slips in crystal packing are found to have an effective impact on the energy conditions. The BPEA-based derivatives with -Cl, -Br, or -CN terminals are expected to achieve excellent SF performances.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Zifu Zang, Ying Yu, Peng Song, Fengcai Ma, Yuanzuo Li
Summary: This study systematically investigated and designed several configurations of nonfused acceptors at the micro level. The designed DBPT series exhibited narrower gaps, broader absorption range, larger electron-accepting power, and improved charge separation. The PBDB-T/DBPT-4F device showed a better power conversion efficiency of 14.69% due to improved interfacial transfer properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Yangyang Zhou, Zihao Li, Yanbo Liu, Jia Huo, Chen Chen, Qiling Li, Songyang Niu, Shuangyin Wang
Article
Chemistry, Multidisciplinary
Chenjia Liang, Junhao Ren, Samir El Hankari, Jia Huo
Article
Chemistry, Multidisciplinary
Yu Liang, Chenhui Li, Lanjun Chen, Jia Huo, Mohammed Loubidi, Yangyang Zhou, Yanbo Liu
Summary: A microwave-assisted acid-induced post-treatment method was developed for the formation of linker vacancies within Zr-based MOFs, resulting in higher linker defects and thermal stability in the optimized UiO-66. The catalytic cyclization of citronella showed that Zr-MOFs with more defects exhibited enhanced catalytic performance.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Gengnan Li, Duong T. Ngo, Yu Yan, Qiaohua Tan, Bin Wang, Daniel E. Resasco
Article
Chemistry, Physical
Gengnan Li, Zheng Zhao, Tong Mou, Qiaohua Tan, Bin Wang, Daniel Resasco
Summary: The study evaluates the effects of different solvents on the hydrogenation reactions catalyzed by Pd/alumina, revealing that the solvent can shift the rate determining step of the reaction by competitive adsorption. The results show that non-polar solvents decrease surface coverage of reactants and intermediates, leading to different hydrogenation rates for different solvents.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Analytical
Qiling Li, Yangyang Zhou, Chen Chen, Qingquan Liu, Jia Huo, Haibo Yi
Summary: This study proposed a facile method to fabricate a self-supported electrode with excellent hydrogen evolution reaction (HER) activities. The optimized 2D CoP/Co-MOF exhibits outstanding HER performance over a wide pH range, with fast charge-transfer rate and abundant exposed active sites. This work provides an effective strategy to design pH-universal HER activity of MOF-based electrocatalysts.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Songyang Niu, Chenhui Li, Jia Huo, Wanrong Dong, Samir El Hankari, Yu Liang, Qiling Li
Summary: A facile and efficient three-layer method was reported for the synthesis of NiCoFe-based trimetallic MOF nanosheets, which can be directly used for oxygen evolution reaction in alkaline conditions. By optimizing the molar ratio of Ni/Co/Fe atoms, a series of MOFs with different metal proportions were synthesized, some of which exhibited good catalytic activity and stability.
Article
Engineering, Environmental
Youzhen Liu, Chenhui Li, Mohammed Loubidi, Dongdong Wang, Ling Zhou, Songyang Niu, Qingquan Liu, Jia Huo
Summary: In this study, a simple and sustainable strategy was described to prepare hierarchically porous thin-wall carbon networks with highly exposed atomically dispersed Ni sites, leading to an increase in the amount of active Ni sites and improved CO2RR catalytic performance. The enhanced activity of the hierarchically porous atomically dispersed Ni electrocatalyst can be attributed to the fully exposed Ni sites, enabling highly efficient activation of CO2 and promoting mass transport and electron transfer.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Qiling Li, Yanbo Liu, Songyang Niu, Chenhui Li, Chen Chen, Qingquan Liu, Jia Huo
Summary: This study presents a facile method for the rapid synthesis of NiCoFe-based metal-organic framework nanosheets using microwave assistance, achieving rapid synthesis and activation for oxygen evolution reaction (OER) with enhanced electrocatalytic activity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yangyang Zhou, Chen Chen, Qiling Li, Yanbo Liu, Ting Wei, Youzhen Liu, Zebing Zeng, Darren Bradshaw, Bing Zhang, Jia Huo
Summary: In this study, a new method for highly selective hydrogenation of α, β-unsaturated aldehydes in aqueous phase was reported, achieving precise control of all potential products by adjusting the role of AB in transfer and/or catalytic hydrogenation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yang Yuan, Youzhen Liu, Chenhui Li, Shi Feng, Qingquan Liu, Jia Huo
Summary: This study develops a facile strategy for synthesizing hierarchically porous N-doped carbon nanosheet networks with high catalytic performance. The catalyst exhibits excellent ORR catalytic performance in both acidic and basic media, comparable to commercial Pt/C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Letter
Chemistry, Applied
Shiqian Du, Ru Chen, Wei Chen, Hongmei Gao, Jianfeng Jia, Zhaohui Xiao, Chao Xie, Hao Li, Li Tao, Jia Huo, Yanyong Wang, Shuangyin Wang
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Chemical
Bing Zhang, Dezhong Song, Youzhen Liu, Quanxiao Deng, Yang Yuan, Qingquan Liu, Jia Huo
Summary: An effective strategy has been developed to regulate the CO2 reduction performance of single-atom Ni electrocatalysts over a broad potential window by engineering their pore structures. It is found that hierarchically porous electrocatalysts significantly promote CO2 reduction efficiency and achieve high CO selectivity. This finding is of great importance for the development of high-activity and selective CO2 electroreduction catalysts.
Article
Engineering, Environmental
Chengfeng Yi, Jia Huo, Zhigang Liu
Summary: A synergistic catalyst (n-Co/CoO@N-HMCS) was developed for selective oxidation of aromatic alkanes by supporting Co single atoms and CoO clusters on nitrogen-doped hollow carbon spheres. The catalyst showed remarkable catalytic performance, achieving a conversion rate of 96.6% for ethylbenzene and a selectivity of 99.5% for acetophenone. Density functional theory calculation revealed that the synergistic effect between Co single atoms and CoO clusters decreased the energy barrier of C-H bond cleavage, thereby accelerating the conversion of ethylbenzene into acetophenone. This strategy is also applicable to the oxidation of other aromatic alkanes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Bo Zhou, Mengyu Li, Yingying Li, Yanbo Liu, Yuxuan Lu, Wei Li, Yujie Wu, Jia Huo, Yanyong Wang, Li Tao, Shuangyin Wang
Summary: This study investigates the electrochemical reaction behaviors and optimization of reaction kinetics of hydrazine electrooxidation at metal phosphides. Experimental results show that Co doping effectively adjusts the dehydrogenation kinetics of hydrazine electrooxidation, lowering the adsorption energy and boosting the reaction kinetics. This work represents a breakthrough in improving the catalytic performance of non-precious metal electrocatalysts for hydrazine electrooxidation and highlights an energy-saving electrochemical hydrogen production method.
CHINESE JOURNAL OF CATALYSIS
(2022)
