Article
Materials Science, Multidisciplinary
Kexin Ren, Jiang Wu, Qingqing Yang, Yingying Fu, Guijun Nian, Zhiyuan Xie
Summary: This study employs a solid solution strategy to enhance the photovoltaic performance of PCDTBT:NFA-based organic solar cells. By dispersing a small amount of PC71BM molecules within the amorphous PCDTBT-OR matrix, a solid solution is formed and shows improved hole mobility and charge transfer efficiency. This approach demonstrates the potential of cheap polymer donor PCDTBT derivatives in achieving high power conversion efficiency when combined with NFAs.
ORGANIC ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Manohar Reddy Busireddy, Tsung-Wei Chen, Sheng-Ci Huang, Yi-Jia Su, Yu-Min Wang, Wei-Tsung Chuang, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study designs and synthesizes two new non-fullerene acceptors (NFAs), TPQ-eC7-4F and TPQ-eC7-4Cl, and investigates the influence of molecular backbone modification and end-group functionalization on the performance of organic solar cells (OSCs). TPQ-eC7-4F demonstrates superior photovoltaic performance with higher power conversion efficiency and improved light absorption compared to TPQ-eC7-4Cl.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Z. Wu, S. Lee, S. Y. Jeong, M. H. Jee, H. G. Lee, C. Lim, C. Wang, B. J. Kim, H. Y. Woo
Summary: The synthesis of two fullerene-non-fullerene hybrid acceptors shows potential for improving the efficiency of organic solar cells, leading to higher power conversion efficiencies by enhancing the short-circuit current density and fill factor.
MATERIALS TODAY ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Elisa Trippodo, Vincenzo Campisciano, Liang-Wen Feng, Yao Chen, Wei Huang, Joaquin M. Alzola, Ding Zheng, Vinod K. Sangwan, Mark C. Hersam, Michael R. Wasielewski, Bruno Pignataro, Francesco Giacalone, Tobin J. Marks, Antonio Facchetti
Summary: Organic solar cells based on donor-acceptor blends have shown great potential in efficiency improvement, but performance degradation is still a major obstacle for commercialization. Ternary solar cells with fullerene acceptors as the third component exhibit enhanced stability with over 90% retention of initial power conversion efficiency even after 6 months of storage. This improved stability is attributed to a more robust blend morphology that reduces charge recombination in the aging process.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Javed Alam Khan, Ajay Singh Panwar, Dipti Gupta
Summary: Incorporating a wide-bandgap polymer as a third component improves the performance of ternary organic solar cells, enhancing photoconversion efficiency and morphology.
ORGANIC ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Yan Gao, Qiaoling Chen, Liwen Wang, Hao Huang, Andong Zhang, Cuihong Li, Xinjun Xu, Zhishan Bo
Summary: End-group modification of non-fullerene acceptors is effective in optimizing the performance of organic solar cells. The introduction of a phenoxy group can decrease planarity, increase solubility, and elevate energy levels. The substituent position of the phenoxy group can affect the morphology of blend films and the photovoltaic performance of the device.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Review
Materials Science, Multidisciplinary
Nafees Ahmad, Guangxing Liang, Ping Fan, Huiqiong Zhou
Summary: This review summarizes the recent development of anode interlayer (AIL) materials and their modification strategies in single-junction non-fullerene polymer solar cells (NF-PSCs). It discusses the basic requirements, functions, and features of AILs, describes the impact of AIL materials on the efficiency and stability of NF-PSCs, and highlights the fabrication of large-area devices and related issues.
Article
Chemistry, Physical
Azzaya Khasbaatar, Andrew Cheng, Austin L. Jones, Justin J. Kwok, Sang Kyu Park, Jessica K. Komar, Oliver Lin, Nicholas E. Jackson, Qian Chen, Dean M. DeLongchamp, John R. Reynolds, Ying Diao
Summary: The aggregation of conjugated polymers in solution is crucial for the morphology and performance of bulk heterojunction organic solar cells (OSCs). However, the specific structures of polymer aggregates in solution and their effects on OSC morphology and performance have not been extensively studied. In this study, we investigate the impact of polymer aggregate structures on the morphology and processing resilience of OSCs using a benzodithiophene-based donor polymer (PM7) and its ester-functionalized derivatives (PM7 D1 and D2). Our results show that PM7 solution forms a combination of semi-crystalline fiber aggregates and amorphous polymer chain network aggregates, while PM7 D1 and D2 solutions primarily form amorphous network aggregates through sidechain associations. Interestingly, the fiber aggregates of PM7 break down at elevated solution temperatures, while the polymer network aggregates remain stable. This temperature-dependent behavior leads to highly processing temperature-sensitive performance in blade-coated devices fabricated from PM7 and ITIC-4F, whereas PM7 D1 and D2 polymers exhibit improved processing temperature resiliency. Furthermore, we find that amorphous, network-like aggregates contribute to superior device performance in blade-coated OSCs due to the formation of blend films with short pi-pi stacking distance, small domain spacing, and face-on preferred molecular orientation. Conversely, fiber-like aggregates result in large pi-pi stacking distance, large domain spacing, and isotropic molecular orientation, which degrade device performance.
CHEMISTRY OF MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Mei Luo, Yinchu Chen, Jiahao Liang, Jiadong Zhou, Dong Yuan, Zesheng Zhang, Xuanchen Liu, Lianjie Zhang, Zengqi Xie, Junwu Chen
Summary: In this study, the facile preparation and separation of three mono-brominated isomers were demonstrated, revealing their impact on the optoelectronic properties. The single-crystal structure of a symmetric molecule was also successfully achieved. These findings contribute to the understanding of the structure-property relationship.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Elmoiz Merghni Mkawi, Yas Al-Hadeethi
Summary: In this study, antimony sulfide (Sb2S3) nanobars were synthesized using a simple organic polymer-assisted hydrothermal method. The concentration of the polymer was found to affect the crystal structure, shape, optical, and electrical characteristics of the Sb2S3 nanobars and thin films. The optimized Sb2S3 device exhibited a power conversion efficiency of 5.11%, demonstrating the significance of the PCDTBT polymer in the creation of Sb2S3 nanobars and thin films.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(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
Chemistry, Multidisciplinary
Obaid Alqahtani, Jie Lv, Tongle Xu, Victor Murcia, Thomas Ferron, Terry McAfee, Devin Grabner, Tainan Duan, Brian A. Collins
Summary: This study presents the device performance and morphology of two polymer-NFA organic solar cells that are highly sensitive to the solvent additive chloronaphthalene. Adding 1% chloronaphthalene significantly improves device efficiency, but concentrations slightly above the optimum hinder device performance.
Article
Materials Science, Multidisciplinary
Xin Liang, Shuai Zhang, Yuanwei Wu, Jiuxing Wang, Chunpeng Yang, Aziz Saparbaev, Shuguang Wen, Xichang Bao
Summary: Device engineering and morphology control are effective ways to improve the photovoltaic performance of organic solar cells, leading to higher charge generation and transport efficiency, as well as inhibiting exciton recombination. The use of PBB-TSD:Y6 in the active layer with a LBL process shows higher efficiency compared to BHJ process.
ORGANIC ELECTRONICS
(2022)
Article
Energy & Fuels
Alem Araya Meresa, Bhaskar Parida, Dang Xuan Long, Donguk Kim, Taemin Kim, Taeshik Earmme, Jongin Hong, Dong-Won Kang, Felix Sunjoo Kim
Summary: In this study, bis(pentafluorophenyl)zinc (BPFZn) was introduced as a molecular dopant in a polymer:fullerene blend to enhance the efficiency of organic solar cells. The results showed improved power conversion efficiency, increased fill factor, enhanced exciton dissociation, and suppressed charge recombination.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Physics, Applied
Javed Alam Khan, Ramakant Sharma, Ajay Singh Panwar, Dipti Gupta
Summary: Non-fullerene acceptors have gained extensive interest in organic solar cells due to their higher power conversion efficiency. The effects of solvent additive 1, 8-diiodooctane (DIO) on the performance of different acceptors were investigated. DIO improved the efficiency of PTB7-Th: PC71BM BHJ-OSCs but adversely affected PTB7-Th: IEICO-4F and PTB7-Th: ITIC BHJ-OSCs.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Soo-Ghang Ihn, Namheon Lee, Soon Ok Jeon, Myungsun Sim, Hosuk Kang, Yongsik Jung, Dal Ho Huh, Young Mok Son, Sae Youn Lee, Masaki Numata, Hiroshi Miyazaki, Rafael Gomez-Bombarelli, Jorge Aguilera-Iparraguirre, Timothy Hirzel, Alan Aspuru-Guzik, Sunghan Kim, Sangyoon Lee
Article
Chemistry, Physical
Wenliang Huang, Markus Einzinger, Tianyu Zhu, Hyun Sik Chae, Soonok Jeon, Soo-Ghang Ihn, Myungsun Sim, Sunghan Kim, Mingjuan Su, Georgiy Teyeroyskiy, Tony Wu, Troy Van Voorhis, Timothy M. Swager, Marc A. Baldo, Stephen L. Buchwald
CHEMISTRY OF MATERIALS
(2018)
Article
Multidisciplinary Sciences
Sinheui Kim, Hye Jin Bae, Sangho Park, Wook Kim, Joonghyuk Kim, Jong Soo Kim, Yongsik Jung, Soohwan Sul, Soo-Ghang Ihn, Changho Noh, Sunghan Kim, Youngmin You
NATURE COMMUNICATIONS
(2018)
Article
Materials Science, Multidisciplinary
Seung Yeon Yi, Soo-Ghang Ihn, Myungsun Sim, Jong Soo Kim, Inkoo Kim, Yeon Sook Chung, Dal Ho Huh, Sunghan Kim, Youngmin You
ADVANCED OPTICAL MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Hosuk Kang, Soon Ok Jeon, Yeon Sook Chung, Myungsun Sim, Jong Soo Kim, Joonghyuk Kim, Hasup Lee, Soo-Ghang Ihn, Sunghan Kim, JinPyo Hong
ORGANIC ELECTRONICS
(2019)
Article
Chemistry, Multidisciplinary
Tae Hui Kwon, Soon Ok Jeon, Masaki Numata, Hasup Lee, Yeon Sook Chung, Jong Soo Kim, Soo-Ghang Ihn, Myungsun Sim, Sunghan Kim, Byeong Moon Kim
Article
Chemistry, Physical
Dong-Jin Yun, Seong Heon Kim, JaeGwan Chung, Yong-Soo Kim, Weon-Ho Shin, Soo-Ghang Ihn, Sungyoung Yun, Yeonji Chung, Seunghyup Lee, Min Kim, Jong Hwan Park
APPLIED SURFACE SCIENCE
(2020)
Article
Multidisciplinary Sciences
Alexey Odinokov, Alexey Osipov, Juwon Oh, Yu Kyung Moon, Soo-Ghang Ihn, Hasup Lee, Inkoo Kim, Won-Joon Son, Sangmo Kim, Dmitry Kravchuk, Jong Soo Kim, Joonghyuk Kim, Hyeonho Choi, Sunghan Kim, Wook Kim, Namheon Lee, Seongsoo Kang, Dongho Kim, Youngmin You, Alexander Yakubovich
ADVANCED THEORY AND SIMULATIONS
(2020)
Article
Materials Science, Multidisciplinary
Jong Soo Kim, Daun Jeong, Hye Jin, Yongsik Jung, Sungho Nam, Ji Whan Kim, Soo-Ghang Ihn, Joonghyuk Kim, Won-Joon Son, Hyeonho Choi, Sunghan Kim
ADVANCED OPTICAL MATERIALS
(2020)
Article
Optics
Soon Ok Jeon, Kyung Hyung Lee, Jong Soo Kim, Soo-Ghang Ihn, Yeon Sook Chung, Ji Whan Kim, Hasup Lee, Sunghan Kim, Hyeonho Choi, Jun Yeob Lee
Summary: By combining a new design of blue TADF materials with a triplet-exciton recycling protocol, high efficiency and long lifetime were achieved in deep-blue organic light-emitting diodes.
Article
Chemistry, Multidisciplinary
Sungho Nam, Ji Whan Kim, Hye Jin Bae, Yusuke Makida Maruyama, Daun Jeong, Joonghyuk Kim, Jong Soo Kim, Won-Joon Son, Hyein Jeong, Jaesang Lee, Soo-Ghang Ihn, Hyeonho Choi
Summary: In this study, a novel hyperfluorescent OLED was proposed, incorporating a Pt(II) complex as a phosphorescent sensitizer and a hydrocarbon-based and multiple resonance-based fluorophore as an emitter, which significantly improved the efficiency and lifetime of the device. The findings showed that using a multiple resonance-based fluorophore in OLEDs can lead to better understanding and higher performance.
Article
Chemistry, Multidisciplinary
Soo-Ghang Ihn, Daun Jeong, Eun Suk Kwon, Sangmo Kim, Yeon Sook Chung, Myungsun Sim, Jun Chwae, Yasushi Koishikawa, Soon Ok Jeon, Jong Soo Kim, Joonghyuk Kim, Sungho Nam, Inkoo Kim, Sangho Park, Dae Sin Kim, Hyeonho Choi, Sunghan Kim
Summary: In order to achieve stable and efficient blue TADF devices, a novel approach for designing host molecules is proposed in this study, which involves adjusting factors such as molecular geometry and dipole moments to enhance the delayed fluorescence efficiency of TADF emitters. By engineering the hosts, significant improvements in both efficiency and stability of TADF devices can be achieved.
Article
Materials Science, Multidisciplinary
Hosuk Kang, Soo-Ghang Ihn, Inkoo Kim, Yeon Sook Chung, Soon Ok Jeon, Myungsun Sim, Joonghyuk Kim, Hasup Lee, Youngmok Son, Won-Joon Son, Inkook Jang, Dae Sin Kim, Hyeonho Choi, Jin Pyo Hong
Summary: Thermally activated delayed fluorescence (TADF) is a promising method for efficient organic light-emitting diodes (OLEDs). However, the operational stability of blue-light TADF emitters is a major drawback. In this study, the position of the triplet exciton is found to be crucial for enhancing operational stability. Repositioning the triplet exciton away from the weakest C-N bond results in a more stable OLED with increased device lifetime.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Young Mo Sung, Eun Suk Kwon, Yusuke Makida Maruyama, Youngsik Shin, Soo-Ghang Ihn, Jong Soo Kim, Hyeonho Choi, Hyo Sug Lee, Jung-Hwa Kim, Joonghyuk Kim, Soohwan Sul
Summary: Intramolecular charge transfer (ICT) and twisted intramolecular charge transfer (TICT) were studied in pyrene derivatives using time-resolved spectroscopy. The fluorescence behavior, including fluorescence intensity, was found to be solvent-dependent and can be modulated through structural modifications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Soo-Ghang Ihn, Eun Suk Kwon, Yongsik Jung, Jong Soo Kim, Sungho Nam, Joonghyuk Kim, Sangmo Kim, Soon Ok Jeon, Yeon Sook Chung, Sangho Park, Dal Ho Huh, Hyun Jung Kim, Hosuk Kang, Namheon Lee, Hye Jin Bae, Hyeonho Choi
Summary: The high-performance blue phosphorescent organic light-emitting diode discussed in the article exhibits low operating voltage, high external quantum efficiency, low efficiency roll-off, and long operation lifetime, mainly attributed to the well-developed cohost and exciplex-forming mechanism.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
