Article
Physics, Condensed Matter
Xin Liu, Xinyu Li, Xiang Li, Qiulian Li, Daoyong Zhang, Na Yu, Shurong Wang
Summary: Cu2SnS3 (CTS) thin films prepared by sulfurization exhibit good performance in solar cells, with the highest power conversion efficiency of 3.68%, as well as high short-circuit current density and peak external quantum efficiency.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Multidisciplinary
Baobing Fan, Wenkai Zhong, Jinxiang Chen, Francis Lin, Yue Wu, Qunping Fan, Hin-Lap Yip, Alex K. -Y. Jen
Summary: This study reports the introduction of a nematic liquid crystal donor, BTR-Cl, into a non-fullerene blending system, which improves the efficiency and fill factor of organic solar cells by enhancing crystallinity and ordering of the host components and facilitating three-dimensional charge transport, thereby reducing upscaling loss.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Rui He, Wanhai Wang, Zongjin Yi, Felix Lang, Cong Chen, Jincheng Luo, Jingwei Zhu, Jarla Thiesbrummel, Sahil Shah, Kun Wei, Yi Luo, Changlei Wang, Huagui Lai, Hao Huang, Jie Zhou, Bingsuo Zou, Xinxing Yin, Shengqiang Ren, Xia Hao, Lili Wu, Jingquan Zhang, Jinbao Zhang, Martin Stolterfoht, Fan Fu, Weihua Tang, Dewei Zhao
Summary: All-perovskite tandem solar cells exhibit high power conversion efficiency and low cost. The efficiency improvement in small-area tandem solar cells is driven by advances in low-bandgap perovskite bottom subcells. However, wide-bandgap perovskite top subcells still face issues, especially in large-area tandem solar cells. In this study, a self-assembled monolayer of (4-(7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid is developed as a hole-selective layer for wide-bandgap perovskite solar cells, which enables efficient hole extraction. By integrating this layer, a high efficiency monolithic all-perovskite tandem solar cell with a large area is achieved.
Article
Chemistry, Multidisciplinary
Chenhui Jiang, Jie Zhou, Rongfeng Tang, Weitao Lian, Xiaomin Wang, Xunyong Lei, Hualing Zeng, Changfei Zhu, Weihua Tang, Tao Chen
Summary: This study presents a one-step hydrothermal process using selenourea as a selenium source to prepare a single-phase and compact Sb-2(S,Se)(3) light absorber film with a desirable bandgap. When a low-cost planar small molecule (DTPThMe-ThTPA) is employed as the hole transporting material, an optimized interfacial energy level alignment is achieved, leading to a champion efficiency of 9.7% and improved stability through the chemical interaction between neighbouring thiophene and Sb atoms.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Polymer Science
Yajie Wang, Chaoyue Zhao, Ziqi Cai, Lihong Wang, Liangxiang Zhu, Hui Huang, Guoping Zhang, Peng You, Chen Xie, Yaping Wang, Qing Bai, Tao Yang, Shunpu Li, Guangye Zhang
Summary: Organic solar cells (OSCs) are highly regarded for their excellent film formation properties, mechanical properties, and thermal stabilities. All-polymer solar cells (all-PSCs), a promising research area, have primarily been processed from chloroform with a thickness of around 100 nm. However, to achieve industrialization, a thicker active layer processed from low-vapor pressure solvents, preferably a hydrocarbon solvent, is desired. In this study, we use toluene as the solvent and employ sequential processing (SqP) to mitigate the decline in efficiency with increasing film thickness.
Article
Physics, Applied
Jia Ding, Calli M. Campbell, Jacob J. Becker, Cheng-Ying Tsai, Stephen T. Schaefer, Tyler T. McCarthy, Mathieu Boccard, Zachary C. Holman, Yong-Hang Zhang
Summary: Monocrystalline 1.7 eV Mg0.13Cd0.87Te/MgxCd1-xTe double heterostructure (DH) solar cells were grown by molecular beam epitaxy, showing improved performance with varying Mg compositions in the barrier layers. Temperature-dependent V-OC measurements revealed that most carrier recombination occurred outside the DHs. Simulation results indicated contributions to J(SC) loss from the p-type a-Si:H layer and the Mg0.37Cd0.63Te top barrier in the device with the highest efficiency.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Hina Pervaiz, Zuhair S. Khan, Nadia Shahzad, Ghulam Ali, Naseem Iqbal, Sofia Javed
Summary: This study introduces a method for synthesizing and depositing organic/inorganic composite ink for the preparation of counter electrodes in flexible dye-sensitized solar cells. The results demonstrate that the composite ink-based counter electrodes exhibit higher catalytic activity, power conversion efficiencies, and redox diffusion rate compared to traditional counter electrodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Energy & Fuels
Jihoon Lee, Soyeong Jang, Vellaiappillai Tamilavan, Ning Li, Rong Wang, Larry Lueer, Dalyong Lee, Jung Won Yoon, Bo Ram Lee, Hyosung Choi, Sung Heum Park, Christoph J. Brabec
Summary: Despite the dominance of bulk-heterojunction (BHJ) structure in the fabrication of organic solar cells (OSCs) due to its higher power conversion efficiency (PCE), this study investigates four different types of bilayer OSC structures using sequential processing (SP) with an additive bilayer and demonstrates considerably enhanced device performance. Through the introduction of a wide bandgap polymer and PCBM materials, the PCE of the conventional bilayer structure is improved from 2.88% to 6.62%. Moreover, remarkable PCEs of 8.78% and 15.16% for PTB7-Th/PCBM and PM6/Y6 bilayer OSCs, respectively, are achieved using the SP with additive bilayer method, successfully addressing the inhomogeneity issues of the BHJ structure.
Article
Multidisciplinary Sciences
Hiroshi Nishiyama, Taro Yamada, Mamiko Nakabayashi, Yoshiki Maehara, Masaharu Yamaguchi, Yasuko Kuromiya, Yoshie Nagatsuma, Hiromasa Tokudome, Seiji Akiyama, Tomoaki Watanabe, Ryoichi Narushima, Sayuri Okunaka, Naoya Shibata, Tsuyoshi Takata, Takashi Hisatomi, Kazunari Domen
Summary: Hydrogen, as an energy carrier, can be obtained through photocatalysis and electrolysis, making it a carbon-neutral energy source. While photocatalytic water splitting efficiency is low, large-scale safe production and collection of hydrogen is feasible. The essential next steps for economic viability and practical use are reactor and process optimization to reduce costs and improve efficiency and stability.
Article
Chemistry, Physical
Shi Chen, Lihua Zhang, Yanliang Liu, Zhuoqiong Zhang, Yang Li, Weizheng Cai, Haiyan Lv, Yanchun Qin, Qianlong Liao, Bin Zhou, Ting Yan, Jie Ren, Shuming Chen, Xiaodong Xiang, Songyuan Dai, Shu Kong So, Xingzhu Wang, Shihe Yang, Baomin Xu
Summary: Efficient search for novel mixed perovskite materials for high-performance solar cells requires high throughput screening protocols. A highly efficient composition screening protocol based on high throughput inkjet printing of discontinuous perovskite films is developed to accelerate the discovery of novel tribromide perovskites for high-photovoltage solar cells. This approach allows for the rapid and automatic inkjet printing of 30 tribromide perovskite films with similar bandgaps, leading to the identification of new constituents for high-photovoltage devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Physical
Yakun He, Ning Li, Thomas Heumueller, Jonas Wortmann, Benedict Hanisch, Anna Aubele, Sebastian Lucas, Guitao Feng, Xudong Jiang, Weiwei Li, Peter Baeuerle, Christoph J. Brabec
Summary: This article explores the industrial application value of bulk heterojunction (BHJ) organic solar cells (OSCs) and single-component OSCs (SCOSCs), including power conversion efficiency, photostability, and synthetic complexity. The results show that despite the slightly more complex synthesis, SCOSCs have higher industrial value and greater potential with increasing efficiency. Additionally, SCOSCs exhibit excellent photostability, making them a promising choice for industrial utilization.
Article
Chemistry, Physical
Chen Yang, Zhiting Luo, Wenhui Ma, Shaoyuan Li, Guoqiang Lv, Kaixin Fu, Kai Liu, Haonan Li, Huizhen Sun, Xiuhua Chen
Summary: Poly(3,4-ethylenedioxythiophene) (PEDOT):polystyrenesulfonate (PSS)/Si hybrid heterojunction solar cells (HHSCs) were fabricated using a solution-based synthesis method, combining the advantages of PEDOT:PSS and crystalline silicon. The optimized PEDOT:PSS-F4TCNQ hole transport layer (HTL) resulted in organic-silicon solar cells with a Jsc of 33.33 mA/cm2 and an eta of 13.23%. Addition of the electron-accepting dopant (F4TCNQ) increased the conductivity of the HTL films, leading to improved crystallinity and fewer defects. Furthermore, a one-step combination of F4TCNQ with a silane coupling agent (vinyltrimethoxysilane, VTMO) improved the textured device, achieving an efficiency of 14.46% and a Jsc of 33.88 mA/cm2. This study provides an alternative and easy way to develop organic-inorganic hybrid applications with excellent optoelectronic properties and enhances the understanding of organic semiconductors.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Wenbo Lu, Zongbao Li, Mingjie Feng, Hui-Juan Yan, Bin Yan, Liyan Hu, Xing Zhang, Shunchang Liu, Jin-Song Hu, Ding-Jiang Xue
Summary: Elemental selenium has regained attention as a potential photovoltaic material due to its wide bandgap, non-toxic composition, and environmental stability. By modifying its wettability and understanding its air stability mechanism, researchers have successfully fabricated efficient selenium solar cells.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Zhifeng Shi, Yaping Liu, Fei Guo, Shifeng Zhao
Summary: Ternary solid solution films were fabricated using Sol-gel methods, combining relaxor behaviors with solubility limit films to regulate the energy storage performances for film capacitors. Introduction of LaMnO3 enhanced relaxor behaviors and energy storage efficiency, but exceeding the limit may reduce breakdown strength due to current channel formation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Min Zhang, Xiaoyuan Chen, Lei Wang, Xiong Deng, Songting Tan
Summary: By introducing a fused ring electron acceptor with a high-lying LUMO energy level and complementary spectrum, the PM6:Y6 binary system was transformed into a ternary blend film PM6:Y6:BTMe-C8-2F, achieving better photovoltaic performance with higher power conversion efficiency, balanced charge mobilities, and low charge recombination.
Review
Chemistry, Multidisciplinary
Wiebke Albrecht, Sandra Van Aert, Sara Bals
Summary: The three-dimensional morphology and composition play a crucial role in governing the properties of nanopartides. In situ transmission electron microscopy is a promising tool for studying NP transformations under relevant conditions. By using specialized techniques like tomographic methods or atom counting, along with in situ holders, diffusion processes on a single nanoparticle level can be quantified. This provides valuable insights into the changes in plasmonic and catalytic properties of metal NPs in response to external stimuli.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Maciej Baginski, Adrian Pedrazo-Tardajos, Thomas Altantzis, Martyna Tupikowska, Andreas Vetter, Ewelina Tomczyk, Radius N. S. Suryadharma, Mateusz Pawlak, Aneta Andruszkiewicz, Ewa Gorecka, Damian Pociecha, Carsten Rockstuhl, Sara Bals, Wiktor Lewandowski
Summary: This study presents proof-of-principle experiments decoding the crystallization of reconfigurable assemblies of nanoparticles in solid state. By utilizing XRD, TEM, and other techniques, the study explores the dependence and correlation in the process of crystallization of nanoparticles, providing insightful information on the anisotropic and reversibly reconfigurable assemblies of NPs.
Article
Electrochemistry
Kohei Suda, Teppei Kawamoto, Satoshi Yasuno, Takeshi Watanabe, Tomoyuki Koganezawa, Masashi Matsumoto, Hideto Imai, Ichiro Hirosawa, Junji Inukai
Summary: The developed operando analytical system allows for simultaneous measurements of the electrochemical reaction rate and the hard X-ray photoemission spectrum. Control of temperature, pressure, concentration, and solution flow rate ensures accurate measurement and control of the electrochemical reaction rate. Connection of two different environments, solution and ultra-high vacuum, enables operando hard X-ray photoemission spectroscopy during steady-state electrochemical reactions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Jonathan Phelipot, Nicolas Ledos, Thomas Dombray, Matthew P. Duffy, Mathieu Denis, Ting Wang, Yahia Didane, Meriem Gaceur, Qinye Bao, Xianjie Liu, Mats Fahlman, Pietro Delugas, Alessandro Mattoni, Denis Tondelier, Bernard Geffroy, Pierre-Antoine Bouit, Olivier Margeat, Joerg Ackermann, Muriel Hissler
Summary: Fluorescent nanohybrids based on pi-extended hydroxyoxophosphole ligands grafted onto ZnO nanoparticles are designed and studied for potential use in OLEDs as solution-processed emissive layers. The restriction of intramolecular motions of the organic fluorophore leads to highly emissive materials due to aggregation induced emission effect. Theoretical calculations and XPS analyses were conducted to analyze the interactions between organic and inorganic components.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Organic
Bruno Salgues, Rudraditya Sarkar, Muhammad Luthfi Fajri, Yatzil Alejandra Avalos-Quiroz, Anne-Doriane Manick, Michel Giorgi, Nicolas Vanthuyne, Yannick Carissan, Christine Videlot-Ackermann, Jorg Ackermann, Gabriel Canard, Jean-Luc Parrain, Boris Le Guennic, Denis Jacquemin, Muriel Amatore, Laurent Commeiras, Elena Zaborova, Frederic Fages
Summary: The novel di(benz[f]indenone)-fused tetraazaanthracene derivative synthesized in this study showed strong electron-accepting character, making it attractive for the generation of n-channel semiconducting materials. It exhibited electron transport in organic field effect transistors and demonstrated potential as an electron acceptor material in organic solar cells.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Yatzil Alejandra Avalos Quiroz, Tomoyuki Koganezawa, Pavlo Perkhun, Elena Barulina, Carmen M. Ruiz, Jorg Ackermann, Noriyuki Yoshimoto, Christine Videlot-Ackermann
Summary: The continuous enhancement in power conversion efficiency of organic solar cells is attributable to the emergence of novel nonfullerene acceptors, highlighting the significance of understanding electron transport properties for improving performance.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Shin Inagaki, Yan-Cheng Lin, Hisakazu Tanaka, Tomoyuki Koganezawa, Wen-Chang Chen, Tomoya Higashihara
Summary: A novel A-b-(B-co-C)-type terpolymer was synthesized to address the issue of irreversible damage caused by stretching in organic semiconductors for wearable electronic devices. The terpolymer showed high stretchability, stable device performance, and stable bipolar charge trapping.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Physics, Applied
Goki Kimura, Sang Hyo Kweon, Kiyotaka Tanaka, Goon Tan, Tomoyuki Koganezawa, Isaku Kanno
Summary: The research revealed that PZT thin films exhibit coexistence of tetragonal and cubic structures at high temperatures, with a phase transition of crystallographic structure occurring during the cooling process. After high-temperature treatment, the thin films showed a large voltage dependence of the inverse piezoelectric coefficients.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Review
Chemistry, Physical
Yasuo Nakayama, Ryohei Tsuruta, Tomoyuki Koganezawa
Summary: This review paper briefly summarizes recent works on the epitaxial inter-molecular junctions built on organic semiconductor single-crystal surfaces, particularly on single crystals of pentacene and rubrene. It also illustrates the experimental methodologies applicable for the determination of crystal structures of such organic single-crystal-based molecular junctions.
Article
Materials Science, Multidisciplinary
Yann Kervella, Jose Maria Andres Castan, Yatzil Alejandra Avalos-Quiroz, Anass Khodr, Quentin Eynaud, Tomoyuki Koganezawa, Noriyuki Yoshimoto, Olivier Margeat, Agnes Rivaton, Antonio J. Riquelme, Valid Mwatati Mwalukuku, Jacques Pecaut, Benjamin Grevin, Christine Videlot-Ackermann, Jorg Ackermann, Renaud Demadrille, Cyril Aumaitre
Summary: We synthesized a star-shape non-fullerene acceptor (NFA) with a D(A)(3) structure based on an aza-triangulene unit as the electron-donating core. The NFA exhibited strong absorption in the visible range and demonstrated good optoelectronic properties in solution and thin films. When combined with PTB7-Th as the electron donor, the NFA achieved a high power conversion efficiency of around 6.3% in inverted solar cells.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Ming-Shui Yao, Ken-ichi Otake, Jiajia Zheng, Masahiko Tsujimoto, Yi-Fan Gu, Lu Zheng, Ping Wang, Shivanna Mohana, Mickaele Bonneau, Tomoyuki Koganezawa, Tetsuo Honma, Hirotaka Ashitani, Shogo Kawaguchi, Yoshiki Kubota, Susumu Kitagawa
Summary: A method of integrating the soft porosity and electrical properties of metal-organic frameworks (MOFs) into a single material is achieved through the design of conductive-on-insulating MOF (cMOF-on-iMOF) heterostructures. The cMOF-on-iMOF heterostructures exhibit enhanced selective sorption of CO2 and flexibility in sensing and electrical shape memory. These properties are attributed to the porous interface formed by the hybridization of both frameworks at the molecular level, as observed through operando synchrotron grazing incidence wide-angle X-ray scattering measurements.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Ryo Toyama, Satoshi Kokado, Keisuke Masuda, Zehao Li, Varun K. Kushwaha, Taisuke T. Sasaki, Loku Singgappulige Rosantha Kumara, Tomoyuki Koganezawa, Hiroo Tajiri, Takahiro Yamazaki, Masato Kotsugi, Yuma Iwasaki, Yuya Sakuraba
Summary: In this paper, the origin of the anisotropic magnetoresistance (AMR) effect in thin films is investigated through experimental observation and theoretical modeling. It is found that the addition of Ir atoms leads to a sign change in the AMR ratio, with the highest negative values observed at high Ir concentrations. The theoretical model confirms that this sign change is due to the B2 ordering phase. These findings provide insights into the AMR origin in heavy-metal-doped ferromagnetic alloys.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Q. Eynaud, Y. A. Avalos Quiroz, T. Koganezawa, R. Sato, N. Yoshimoto, O. Margeat, C. M. Ruiz, J. Ackermann, C. Videlot-Ackermann
Summary: For wavelength-selective photodetection or color discrimination, organic photodetectors (OPDs) have advantages such as solution processability, chemical versatility, and functionality. This study demonstrates a bulk-heterojunction (BHJ) organic blend that exhibits a filter-free visible-blind near-infrared light responsive characteristic. The optimized OPD achieves a high-selective spectral response with an external narrowband quantum efficiency of 24.5% and a bandwidth of 42 nm centered at 807 nm.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)