Article
Chemistry, Applied
Weipeng Sun, Junwei Wang, Yongqiang Shi, Ziang Wu, Yumin Tang, Kui Feng, Han Young Woo, Xugang Guo, Fei-Bao Zhang
Summary: A series of random terpolymer acceptors with A(1)-A(2)-A(3) backbone were synthesized using random copolymerization strategy, among which PBTP showed good performance and achieved high power conversion efficiency in all-polymer solar cells. This suggests that A(1)-A(2)-A(3) type terpolymer acceptors have potential for developing high-performance all-polymer solar cells.
Article
Chemistry, Applied
Xuyu Gao, Huabin Wang, Ruitao Yu, Yijing Wu, Yinming He, Tianjian Yang, Youtian Tao
Summary: A new terpolymer acceptor PNDI-BTzx (x = 5 and 10) was designed by introducing fluorinated benzotriazole (2f-BTz) into the N2200 backbone, leading to enhanced absorption coefficients, weakened polymer crystallinities, and improved polymer miscibility. All-PSCs based on PNDI-BTz5 demonstrated enhanced photovoltaic performance with better thickness tolerance, showing potential for reproducible and thick-film practical applications in all-polymer photovoltaics.
Article
Nanoscience & Nanotechnology
Li-Hui Chou, Tsubasa Mikie, Masahiko Saito, Cheng-Liang Liu, Itaru Osaka
Summary: In this study, new NTz-based polymers were synthesized with improved solubility by introducing alkylthienyl substituents in the polymer backbone. These polymers exhibited higher photovoltaic performances in nonfullerene-based organic photovoltaic cells, attributed to enhanced miscibility with the nonfullerene acceptor and improved charge generation and reduced charge recombination.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Seunggyun Hong, Chang Eun Song, Du Hyeon Ryu, Sang Kyu Lee, Won Suk Shin, Eunhee Lim
Summary: This study introduces two cyclohexyl-substituted non-fullerene small molecules with the same molecular backbone and different properties. One molecule exhibits higher thermal stability and crystallinity, while the other can form a uniform film through solution-processing due to enhanced solubility. By pairing with a polymer donor, the organic solar cell device based on one of the small molecules shows improved performance with a high power conversion efficiency.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Dong Chen, Siqi Liu, Jinliang Liu, Jihui Han, Lie Chen, Yiwang Chen
Summary: In this study, introducing a 3,3'-difluoro-2,2'-bithiophene (2FT) unit into the NDI-based polymer N2200 through random copolymerization successfully created three terpolymer acceptors, significantly improving absorption coefficients. Random copolymerization reduces aggregation, produces more flexible main chains, and results in higher performance polymer solar cells.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Engineering, Environmental
Miao Zhang, Xiaoling Ma, Hongyang Zhang, Longzhi Zhu, Linli Xu, Fujun Zhang, Chui-Shan Tsang, Lawrence Yoon Suk Lee, Han Young Woo, Zhicai He, Wai-Yeung Wong
Summary: The introduction of iridium complex M1 into the backbone of the polymer PM6 resulted in a series of metallated terpolymer donors PM6Irx (x = 1%, 3%, 5%). The PM6Ir1:Y6 based PSCs exhibited the best PCE of 16.71% with enhanced photon harvesting and improved charge mobility. Iridium complexes with strong absorption in the visible region show great potential to enhance the photovoltaic performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Jose Jonathan Rubio Arias, Isabela Custodio Mota, Maria De Fatima Vieira Marques
Summary: This research focuses on the synthesis and characteristics of a high-bandgap polymer with potential applications in ternary organic solar cells and single junction inverted OPV devices. Dynamic GIWAXS studies show that increasing annealing temperature can significantly improve the crystalline organization of the polymer.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Xiaochen Wang, Rui Zhao, Zicheng Ding, Shengzhong Frank Liu, Yongfang Li
Summary: The design and development of low-cost and efficient photovoltaic materials is a major challenge for polymer solar cells (PSCs). In this study, a highly promising electron-donating polymer X1 with a simple chemical structure was synthesized. The carboxylate substituents on the polymer gave it good solubility, low-lying highest occupied molecular orbital (HOMO) energy level, and superior absorption. PSCs based on X1 as the donor achieved a high power conversion efficiency of 16.6% and a remarkable short-circuit current density of 27.07 mA cm(-2). This research shows the potential of carboxylated BDT as an effective building block for high-performance photovoltaic materials.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Applied
Ru Feng, Tatsuya Mori, Takuma Yasuda, Hiroyuki Furuta, Soji Shimizu
Summary: The authors present two new pyrrolopyrrole aza-BODIPY (PPAB) based panchromatic chromophores, TT-2PPAB and DFBT-2PPAB, with an acceptor-donor-acceptor configuration. Among them, TT-2PPAB exhibits a moderate power conversion efficiency (PCE) of 3.11% when combined with [6,6]-phenyl-C71 butyric acid methyl ester (PC71BM) acceptor, with an energy loss of 0.48 eV, smaller than the empirical limit of 0.6 eV. The efficient photovoltaic performance of the TT-2PPAB-based device is attributed to the sufficiently deep LUMO level of TT-2PPAB for charge transfer to PC71BM, as revealed by electrochemistry and theoretical calculations.
Article
Chemistry, Physical
Linyong Xu, Wuxi Tao, Ming Guan, Xin Yang, Meihua Huang, Huajie Chen, Jianqi Zhang, Bin Zhao, Songting Tan
Summary: Two terpolymers with different side chains were designed and synthesized, with the addition of s-tetrazine units for improved efficiency in polymer solar cells. Side-chain engineering was found to have a significant impact on charge transport and exciton dissociation.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Qilin Wang, Yuehui Zhai, Danming Chao, Zheng Chen, Zhenhua Jiang
Summary: Functional polymers with highly hydrophilic, highly polar, highly flexible, and biocompatible oligoethylene glycol side chains were designed and prepared to improve processability. The polymer PBDT-IID4, with longer oligoethylene glycol side chains, showed good solubility in both the halogen solvent chlorobenzene and the green halogen-free solvent methyltetrahydrofuran (Me-THF). The green solvent Me-THF can also be used for the preparation of electrochromic active layers.
Article
Chemistry, Multidisciplinary
Liuyang Zhou, Lei Meng, Jinyuan Zhang, Can Zhu, Shucheng Qin, Indunil Angunawela, Yan Wan, Harald Ade, Yongfang Li
Summary: The study successfully synthesized three D-A(1)-D-A(2) type terpolymers using a random ternary copolymerization strategy, with PZ-T as the second A-unit, to improve the photovoltaic performance of polymer solar cell donors.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Zhihui Liao, Dingqin Hu, Hua Tang, Peihao Huang, Ranbir Singh, Sein Chung, Kilwon Cho, Manish Kumar, Licheng Hou, Qianqian Chen, Weiyang Yu, Haiyan Chen, Ke Yang, Zhipeng Kan, Feng Liu, Zeyun Xiao, Gang Li, Shirong Lu
Summary: Researchers synthesized a series of terpolymer donors with varying fractions of ester-substituted thiazole (E-Tz) units using random ternary copolymerization. They found that fine-tuning the E-Tz content can optimize the energy levels, electrostatic potentials, molecular aggregation, miscibility, and morphology, resulting in improved performance parameters for photovoltaic devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Materials Science, Multidisciplinary
Duygu Cevher, Sevki Can Cevher, Ali Cirpan
Summary: Reviewed the recent developments in benzodithiophene-bearing polymeric materials, including modifications of backbones, functional groups, alkyl chains, and their impact on device performance.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Wangjun Guo, Hongli Liu, Jianqun Liu, Jie Zhang, Yilin Cao, Zhi Yang, Yadong Liu, Zhisheng Wu, Xinchao Song, Yi Niu, Yingzhe Liu
Summary: Two novel donor-acceptor (D-A) polymers, P1 and P2, based on conjugated alkylthienyl substituted benzo[1,2-b:4,5-b']dithiophene and difluorine substituted isoindigo derivatives, were synthesized and investigated for their thermal stability, absorption properties, energy levels, and photovoltaic performance. P2 showed superior power conversion efficiencies and higher short circuit current compared to P1, attributed to its nanophase separation and efficient exciton dissociation. The incorporation of fluorine atoms in the copolymer influenced thin-film structure, photophysical/electrochemical properties, and highlighted a new strategy for the design of fluorinated D-A polymers.
Article
Chemistry, Multidisciplinary
Jaewan Ko, Kyungyeon Ma, Joonyoung F. Joung, Sungnam Park, Joona Bang
Summary: In this study, patternable perovskite nanocrystals with excellent stability were prepared by exchanging ligands, leading to successful demonstration of RGB microarrays with enhanced stability towards polar solvents. The results highlight the versatility and feasibility of a simplified patterning strategy for nanomaterials.
Article
Nanoscience & Nanotechnology
Jinhyo Hwang, Chang Woo Koh, Jung Min Ha, Han Young Woo, Sungnam Park, Min Ju Cho, Dong Hoon Choi
Summary: This study demonstrated two deep-blue TADF emitters for solution-processable TADF-OLEDs, showing high efficiency and excellent electroluminescence properties. Both emitters have potential for high-efficiency solution-processable deep-blue TADF-OLEDs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Van-Nghia Nguyen, Jeongsun Ha, Chang Woo Koh, Bokyeong Ryu, Gyoungmi Kim, Jae Hak Park, C-Yoon Kim, Sungnam Park, Juyoung Yoon
Summary: This study developed novel heavy-atom-free BODIPY-phenoxazine triads for fluorescence image-guided PDT, showing excellent photophysical properties and superior performance in tumor targeting. The results demonstrated the potential application of these nanoparticles in image-guided photodynamic cancer therapy.
CHEMISTRY OF MATERIALS
(2021)
Article
Polymer Science
Na Yeon Kwon, Youngseo Kim, Meenal Kataria, Su Hong Park, Seunguk Cho, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Sungnam Park, Dong Hoon Choi
Summary: In this study, three novel aromatic imide-based conjugated donor-sigma-acceptor (D-sigma-A) dyad-based polymers were synthesized and their photophysical and electrochemical characteristics were studied. Among them, BDTBT-PDI showed efficient extraction and portable detection abilities for Fe2+ ions, as well as ultrasensitive detection of spermine in urine samples and fermented food samples. The on-off fluorescence behavior of BDTBT-PDI enabled the development of molecular logic gates.
Article
Chemistry, Medicinal
Joonyoung F. Joung, Minhi Han, Minseok Jeong, Sungnam Park
Summary: An explainable deep learning optical spectroscopy method is developed to understand the contributions of functional groups and solvents in determining the optical properties of molecules. This method provides attributions for seven optical properties, allowing for the estimation and design of optimal molecules.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2022)
Article
Chemistry, Physical
Dong Won Kang, Ji Hyeon Kim, Jong Hyeon Lim, Youngseo Kim, Minjung Kang, Jinwoo Shin, Subin Son, Hongryeol Yun, Hyojin Kim, Sungnam Park, Jin Yong Lee, Jong Seung Kim, Chang Seop Hong
Summary: In this study, a covalent organic framework (COF) was synthesized to generate different types of ROS under ultrasound irradiation. The COF material exhibited the capability to generate ROS through both light activation and PMS activation without the need for light sources or catalytic metal sites. Synergistic ROS generation was also observed through the combination of sonosensitization and PMS activation by the COF.
Article
Chemistry, Physical
Minseok Jeong, Joonyoung F. Joung, Jinhyo Hwang, Minhi Han, Chang Woo Koh, Dong Hoon Choi, Sungnam Park
Summary: A deep learning model trained with an experimental database accurately predicts the HOMO and LUMO energies of organic molecules for virtual screening of OLED materials.
NPJ COMPUTATIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Na Yeon Kwon, Su Hong Park, Chang Woo Koh, Jin Young Park, Min Ji Kang, Heume Il Baek, Junho Youn, Sungnam Park, Chang Wook Han, Min Ju Cho, Dong Hoon Choi
Summary: A novel core molecule for V-shaped host molecules, with two carbazoles directly linked to cyclohexane, was synthesized. Cy-mCP and Cy-mCBP hosts were prepared for solution-processable TADF-OLEDs, demonstrating improved thermal stability and film-forming ability compared to lower molecular weight hosts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Jinwoo Shin, Dong Won Kang, Jong Hyeon Lim, Jong Min An, Youngseo Kim, Ji Hyeon Kim, Myung Sun Ji, Sungnam Park, Dokyoung Kim, Jin Yong Lee, Jong Seung Kim, Chang Seop Hong
Summary: A wavelength-engineerable organic photocatalytic system for generating reactive oxygen species (ROS) has been developed, allowing for efficient and tunable production of ROS without the need for metal ions or heavy atoms. The system demonstrates superior tumor eradication and biocompatibility in biological assays, and provides a potential basis for designing nanoscale photosensitizers in various ROS-utilizing applications.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jaewan Ko, Hyeondoo Je, Kitae Kim, Taejun Eom, Joonyoung F. Joung, Sungnam Park, Joona Bang, Dong Hoon Choi
Summary: Proper management of surface defects in perovskite nanocrystals and surface tailoring with organic pseudohalide ligands can significantly improve optical properties and colloidal stability, providing a promising platform for green and blue PeNC-based LEDs.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Joonyoung F. Joung, Minseok Jeong, Sungnam Park
Summary: This paper evaluates the reliability of experimentally determined photoacidity values using a theoretical method. Density functional theory (DFT) and time-dependent DFT calculations are employed to calculate the changes in Gibbs free energy for acid dissociation reactions, which are directly related to photoacidity values. The results show that using the optical bandgap as the transition energy in the Forster cycle yields the most consistent pK(a)* values compared to quantum chemical calculations.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Jong Min An, Sangrim Kang, Chang Woo Koh, Sungnam Park, Myung Sook Oh, Dokyoung Kim
Summary: A new nano-antibiotic formulation based on sceptrin-Au nano-aggregates (SANA) has been developed to combat drug-resistant bacterial infections. SANA showed superior antibiotic/antibiofilm activity with low toxicity to red blood cells and endothelial cells. The feasibility of SANA as a new nano-antibiotic was demonstrated in CRPA-contaminated medical supplies.
NANOSCALE HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Meenal Kataria, Youngseo Kim, Hong Diem Chau, Na Yeon Kwon, Yongju Hong, Taekyung Kim, Jaewan Ko, Myung Kook Son, Joona Bang, Sungnam Park, Hugh Kim, Kwangyeol Lee, Dong Hoon Choi
Summary: In this study, we successfully developed an entropically favored helical supramolecular self-assembly system using a triphenylamine-based derivative 4 in a green solvent. The transformation from helical structure to random structure and then to achiral nanorods was studied by varying the concentration of achiral stimuli (Fe2+ ions). In addition, the metal-free helical supramolecular self-assembly showed enantioselectivity in differentiating between L- and D-prohne, achieved through chiral stimuli-induced structural modulation.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Organic
Yuna Jung, Ji Hye Jin, Youngseo Kim, Ji Hyeon Oh, Heechang Moon, Huisu Jeong, Jaehoon Kim, Yoon Kyung Park, Yohan Oh, Sungnam Park, Dokyoung Kim
Summary: In this study, a new fluorescent nanoprobe BMeS-Ali is developed for the visualization of lipid droplets (LDs). BMeS-Ali shows selective staining ability, excellent biocompatibility, and can be applied to the visualization of human fingerprints.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Polymer Science
Seunguk Cho, Na Yeon Kwon, Chai Won Kim, Hyoseong Lee, Jung Min Ha, Hyung Jong Kim, Han Young Woo, Sungnam Park, Min Ju Cho, Dong Hoon Choi
Summary: The development of suitable host materials for emitters is crucial for high-efficiency OLEDs. In this study, a blend of a polymer donor P(Bn-DPAc) and a small-molecule acceptor tPTRZ was used as the host material in solution-processed OLEDs, showing improved performance compared to a unipolar host.
Article
Chemistry, Applied
Leping Chen, Yanfen Wang, Tingyu Shi, Tiantian Ma, Yang Li, Huayu Qiu, Shouchun Yin, Meier Gu
Summary: This study successfully overcame the limitations of the heavy atom effect by introducing iodine atoms and innovatively enhancing the structure while weakening stacking behavior, achieving high efficiency and precision in photodynamic therapy and photothermal therapy.
Article
Chemistry, Applied
Bingpeng Guo, Honghan Sa, Peng Zhang, Guiwen Hao, Mengyu Li, Qingqing Jiang, Baoying Li, Wei Shu, Changxiang Shao
Summary: The design of ratiometric fluorescence probes with large Stokes shift is of great significance in detecting and imaging target substances in complex organisms. In this study, a novel fluorophore with a large Stokes shift was easily obtained, and a fluorescence probe based on it demonstrated rapid response, high selectivity, and sensitivity towards peroxynitrite. The probe also showed excellent biocompatibility and remarkable mitochondrial targeting ability, making it suitable for proportional imaging of peroxynitrite in living cells and zebrafish.
Review
Chemistry, Applied
Haidong Huang, Xiaohui Wang, Xinyang Li, Yichen Li, Guojin Liu, Lan Zhou, Jianzhong Shao
Summary: This article introduces the application of responsive photonic crystals in anti-counterfeiting technology, with a focus on the preparation principle, classification, and preparation methods.
Article
Chemistry, Applied
Yunpeng Wang, Tao Zhao, Xiaoye Bi, Chencheng Lv
Summary: In this study, three novel carbene dyes were designed to achieve environmentally friendly dyeing processes. The dyes formed covalent bonds with fibers and exhibited good dyeing performance and high color fastness. These findings highlight the potential of the novel carbene dyes in promoting green production in the textile industry.
Review
Chemistry, Applied
Yizhe Yan, Xiaopei Zhu, Jia-Xin Cao, Yuan He, Shaoqing Li, Jian-Yong Wang
Summary: In this paper, 1,3,5-triazine dyes were successfully synthesized and their photophysical properties were studied. Two probes were selected for further investigation, showing promising applications in various fields.
Article
Chemistry, Applied
Xin Hu, Tongsheng Huang, Lihua Chen, Weifeng Zhu, Fengjie Deng, Xiancai Li, Jianwen Tian, Meiying Liu, Xiaoyong Zhang, Yen Wei
Summary: This study presents the synthesis of fluorescent cyclomatrix polyphosphazene spheres with aggregation-induced emission (AIE) feature and biodegradable potential for controlled drug delivery. The resulting micelles exhibit high water dispersibility, desirable fluorescence performance, and high drug loading capacity. They can effectively release the encapsulated drug in physiological solution and show excellent biological imaging ability and cytotoxicity against cancer cells.
Article
Chemistry, Applied
Yanzhu Liu, Yanghui Lei, Dongyan Li, Guangkui Li, Dongping Li, Yongxiu Li
Summary: In this study, luminescent lanthanide nanoparticles were synthesized as a dual emission turn-off probe for detecting 2,6-pyridinedicarboxylic acid (DPA) in water. The nanoparticles showed good dispersion and water stability, and achieved low detection limits for DPA. They also exhibited high recoveries in various samples.
Article
Chemistry, Applied
Jung Jae Do, Jong Ryeol Kwon, Donghan Kim, Jae Woong Jung
Summary: This study presents a defect passivation approach using coumarin dye as a multi-functional passivating agent of perovskite films to boost power conversion efficiency and operating stability of PSCs. The incorporation of coumarin dye improves the film morphology, enhances carrier extraction/transport, and suppresses trap-assisted recombination in the perovskite films. The optimized device demonstrates impressive reliability and practical applicability, maintaining over 90% of its initial PCE after being exposed to continuous indoor lighting irradiation for 2000 hours.
Article
Chemistry, Applied
Gang Wang, Yu-Chang Wang, Jing Lu, Wen-Fu Yan, Juan Jin, Yuan-Peng Wang, Jia-Jia Zhang, Hui-Jie Zhang, Hao Dong, Xi-Guang Liu
Summary: A new Ni(II) compound with good solid-state fluorescence performance and stability was synthesized, and it showed outstanding detection properties for various substances in aqueous solutions. This compound has the potential to be a multifunctional sensor.
Article
Chemistry, Applied
Luyao Wei, Shenglong Shang, Yu Zheng, Jie Liu, Ping Zhu
Summary: This study developed a facile method to create high saturation and durable structural colors on cotton fabrics. The colors are regulated by adjusting the size of magnetic particles and can be conveniently printed on fabrics using photo masks on transparent films.
Article
Chemistry, Applied
Zhao Jiang, Qing Zhang, Zhaoyu Kong, Ruijie Qiao, Zichuan Liu, Linzhou Song, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Three heteroleptic Ir(III) complexes with different electron-donating aryl groups were synthesized and their optical properties were investigated. It was found that all three complexes exhibited aggregation-induced phosphorescence emission (AIPE) behaviors, and the relationship between the size of organic ligands and AIPE behaviors was characterized. Ir-PhCz showed the best imaging of latent fingerprints due to its green light emission and high quantum yield.
Article
Chemistry, Applied
Zhijun Ruan, Chunxia Fan, Xuanrong Wang, Dong Shao, Xiaodong Yang, Wentao He, Tao Xu, Junqi Lin, Zhengfang Tian
Summary: A novel thioketal-based probe has been designed for rapid and accurate detection of mercury (II) ions, showing different fluorescence characteristics in various states. The probe exhibits excellent selectivity and specificity, making it suitable for Hg2+ detection in water solutions.
Article
Chemistry, Applied
Jianjun Huang, Xuan Zhao, Daniel Escudero, Luc Van Meervelt, Dongbin Zheng, Yuyu Fang, Wim Dehaen
Summary: A series of BOAHY compounds were successfully synthesized and showed versatile applications as a platform for designing novel fluorescent probes, especially in selective recognition.
Article
Chemistry, Applied
Roman V. Larkovich, Victoria E. Shambalova, Savva A. Ponomarev, Alexander S. Aldoshin, Boris N. Tarasevich, Konstantin A. Lyssenko, Valentine G. Nenajdenko
Summary: An efficient synthetic protocol for the preparation of novel 1,7-difluorinated BODIPYs was elaborated. Their photophysical properties were studied and the effect of 2,6-substituents was evaluated using DFT calculations.
Article
Chemistry, Applied
Haneul Kim, Byungjin Koo
Summary: In this study, a lithium ion sensing methodology based on fluorinated naphthalene compounds using 19F NMR and UV-vis spectroscopy is reported. The binding of lithium ions to the compounds is confirmed by changes in chemical shifts and peak broadening. Additionally, the effect of different crown ether ring sizes on the binding ability is observed. This study provides a new method for lithium ion sensing using spectroscopy.
