Article
Nanoscience & Nanotechnology
Su Hong Park, Na Yeon Kwon, Sung Hoon Jung, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Dong Hoon Choi
Summary: In this study, a novel approach using a D1-D2 conjugated block copolymer, PM6-b-TT, was investigated to replace the physical blend of two donors in polymer solar cells. The blend films demonstrated excellent crystallinity and a film morphology favorable for PSCs. This strategy shows promising potential to enhance the performance of future PSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Su Hong Park, Na Yeon Kwon, Sung Hoon Jung, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Dong Hoon Choi
Summary: The recent breakthrough in PCEs of PSCs using a ternary system has sparked interest for further research, although optimizing composition and controlling the interaction between active materials remain challenging. This study investigated the use of a conjugated block copolymer, PM6-b-TT, to replace the physical blend of two donors in the ternary system. The resulting PSC demonstrated higher PCE and thermal stability, indicating the promising potential of the novel D1-D2 CBP strategy in enhancing future PSC performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Judith Stickdorn, Lara Stein, Danielle Arnold-Schild, Jennifer Hahlbrock, Carolina Medina-Montano, Joschka Bartneck, Tanja Ziss, Evelyn Montermann, Cinja Kappel, Dominika Hobernik, Maximilian Haist, Hajime Yurugi, Marco Raabe, Andreas Best, Krishnaraj Rajalingam, Markus P. Radsak, Sunil A. David, Kaloian Koynov, Matthias Bros, Stephan Grabbe, Hansjoerg Schild, Lutz Nuhn
Summary: Specific immune responses are crucial for the development of effective tumor vaccines. A pH-responsive nanogel platform consisting of an antigen and an immune adjuvant can elicit strong immune responses and inhibit tumor growth.
Article
Chemistry, Multidisciplinary
Xinrong Yang, Yao Wu, Yuan Gao, Jing Guo, Wei Wang, Jie Min
Summary: Batch-to-batch variation plays a crucial role in the performance of organic solar cells. By synthesizing conjugated donor-acceptor block copolymers with different D/A block lengths, it was found that increasing the conjugation length of the intermediate D-block leads to improved lamellar packing order, stronger absorption spectra, and more efficient charge transfer, resulting in higher efficiency of the solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Zixuan Guo, Aaron Plant, Joshua Del Mundo, Josh H. Litofsky, Bangzhi Liu, Raymond J. L. Hallman, Esther W. Gomez, Michael A. Hickner, Youngmin Lee, Enrique D. Gomez
Summary: In this study, a new donor-acceptor block copolymer was synthesized and added into polymer blend solar cells to improve their thermal stability. The results showed that, with an appropriate amount, the block copolymer can effectively reduce thermal degradation of the photovoltaic devices while maintaining the initial power conversion efficiency.
Article
Nanoscience & Nanotechnology
Marc Gensch, Matthias Schwartzkopf, Calvin J. Brett, Simon J. Schaper, Nian Li, Wei Chen, Suzhe Liang, Jonas Drewes, Oleksandr Polonskyi, Thomas Strunskus, Franz Faupel, Peter Mueller-Buschbaum, Stephan Roth
Summary: This study investigates the nanostructure formation of aluminum cluster layers on different polymer domains using a diblock copolymer template, and monitors the optical properties and chemical interaction during sputter deposition. Various characterization techniques such as UV-vis measurements, GISAXS, XPS, AFM, and FESEM are employed to study the selective wetting of aluminum on P3HT domains and embedding in PMMA domains, as well as the four distinct growth stages of aluminum nanostructure formation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Chen-Fu Lin, Yan-Cheng Lin, Wei-Chen Yang, Li-Che Hsu, Ender Ercan, Chih-Chien Hung, Yang-Yen Yu, Wen-Chang Chen
Summary: The study reports the use of a series of conjugated block copolymers, PF-b-Piso, in a photonic field-effect transistor (FET) memory device, demonstrating multiband photoresponse and good memory performance by optimizing the polymer composition. The experimental results suggest that the block copolymer design stabilizes trapped charge in the polymer electret and triggers multiband photoresponding of the photonic FET memory.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Polymer Science
Baiqiao Liu, Shijie Liang, Safakath Karuthedath, Yakun He, Jing Wang, Wen Liang Tan, Hao Li, Yunhua Xu, Frederic Laquai, Christoph J. Brabec, Christopher R. McNeill, Chengyi Xiao, Zheng Tang, Jianhui Hou, Fan Yang, Weiwei Li
Summary: In this study, a non-fused electron acceptor was incorporated into double-cable conjugated polymers for single-component organic solar cells (SCOSCs) with near-infrared absorption. The non-fused electron acceptor consisted of a thienyl-phenyl-thienyl core with an end group of 2-(3-oxo-2,3-dihydroinden-1ylidene)malononitrile (IC), which served as the side unit for creating the double-cable polymers. The conjugated backbone selected was poly(benzodithiophene), and the optical and electronic properties were tuned by varying the number of chlorine (Cl) atoms. The resulting double-cable polymers showed an efficiency of over 8% and a broad photoresponse range from 300 to 800 nm in SCOSCs.
Article
Multidisciplinary Sciences
Bin Liu, Huiliang Sun, Jin-Woo Lee, Zhengyan Jiang, Junqin Qiao, Junwei Wang, Jie Yang, Kui Feng, Qiaogan Liao, Mingwei An, Bolin Li, Dongxue Han, Baomin Xu, Hongzhen Lian, Li Niu, Bumjoon J. Kim, Xugang Guo
Summary: The degradation of kinetically trapped bulk heterojunction film morphology in organic solar cells is a major challenge for their practical use. In this study, the authors demonstrate highly thermally stable organic solar cells with a multicomponent photoactive layer synthesized through a simple one-pot polymerization method, achieving an efficiency of 11.8% and a T80 of 1000 hours. These findings provide a pathway for the development of low-cost and long-term stable organic solar cells.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xiaoming Li, Xiaopeng Duan, Zezhou Liang, Lihe Yan, Yinuo Yang, Jiawei Qiao, Xiaotao Hao, Chen Zhang, Jie Zhang, Yan Li, Fei Huang, Yanming Sun
Summary: A novel polymer donor, PBDF-NS, based on BDF polymer for OSCs achieved high efficiency with a PCE over 16% and demonstrated high stability. This suggests that through molecular design, BDF-based copolymers have the potential to realize high-efficiency all-polymer solar cells.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shijie Liang, Chengyi Xiao, Chengcheng Xie, Baiqiao Liu, Haisheng Fang, Weiwei Li
Summary: In this study, double-cable conjugated polymers with pendent electron acceptors, including fullerene, rylene diimides, and nonfused acceptors, were developed for application in single-component organic solar cells (SCOSCs) with efficiencies approaching 10%. Y-series electron acceptors were incorporated into double-cable polymers to improve the efficiencies of SCOSCs. A highly crystalline Y-series acceptor based on quinoxaline core and the random copolymerized strategy were used to optimize the ambipolar charge transport and the nanophase separation of the double-cable polymers. As a result, an efficiency of 13.02% was obtained in the random double-cable polymer, representing the highest performance in SCOSCs, while the regular double-cable polymer only provided a low efficiency of 2.75%. The significantly enhanced efficiencies are attributed to higher charge carrier mobilities, better ordering conjugated backbones, and Y-series acceptors in random double-cable polymers.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Muhammad Rafiq, Jianhua Jing, Yuanying Liang, Zhicheng Hu, Xi Zhang, Haoran Tang, Li Tian, Yingwei Li, Fei Huang
Summary: DPTFBr is a novel pyridinium-pended conjugated polyelectrolyte that undergoes a transition from a pristine state to a radical state through a photo-induced amine doping process, enabling high rates of photocatalytic hydrogen evolution and efficient electron transport/collection in organic solar cells with a power conversion efficiency of over 16%.
Article
Engineering, Environmental
Qing-Bao Zheng, Yan-Cheng Lin, Yen-Ting Lin, Yun Chang, Wei-Ni Wu, Jhih-Min Lin, Shih-Huang Tung, Wen-Chang Chen, Cheng-Liang Liu
Summary: Organic-based thermoelectric materials are popular for their waste heat-to-electricity conversion ability, low processing costs, mechanical flexibility, and non-toxicity, which makes them an attractive option for wearable electronics. However, there is a lack of direct integration of stretchable semiconducting polymers in wearable thermoelectric devices. This study explores the potential of using doped P3HT-b-PBA copolymers to develop stretchable thermoelectric devices and presents a promising approach for creating these devices by combining the thermoelectric properties of P3HT and the intrinsic softness of PBA.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Kayla C. Koch, Daniel Korus, Justin Doyle, Megan Plummer, Meredith Boxx, Hla Win-Piazza, Stephen McDowall, David L. Patrick, David A. Rider
Summary: Luminescent solar concentrators (LSCs) use down-converting phosphors to absorb sunlight and deliver high irradiance output light. However, the scattering from quantum dots (QD) aggregates poses a challenge. This study investigates the use of polymer ligands matching the LSC matrix to reduce scattering and achieve lower optical loss in QD-based LSCs.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Jiucheng Nie, Zhongming Wang, Longgang Xia, Xiaoyu Huang, Guolin Lu, Chun Feng
Summary: The co-self-seeding approach of living crystallization-driven self-assembly (CDSA) allows for the generation of fiber-like micelles with a tunable length/composition/morphology of the π-conjugated core. However, the understanding of this approach in the preparation of fiber-like micelles with a heterogeneous π-conjugated core is limited. This study demonstrates that polydisperse comicelles with a heterogeneous OPE9/OPV5 core can be formed via crystallization-driven co-self-assembly, and that apparent continuous and segmented fiber-like comicelles can be generated through co-self-seeding.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)