Review
Chemistry, Analytical
Ting Li, Hui Dong, Yuanqiang Hao, Yintang Zhang, Shu Chen, Maotian Xu, Yanli Zhou
Summary: NIR light-driven PEC sensing is a promising analytical technique for in situ bioanalysis due to its deep penetration capability and minimal invasiveness. Recent developments in NIR PEC sensors focus on light-responsive materials and applications, with potential for significant future advancements.
Article
Chemistry, Multidisciplinary
Linlin Li, Hao Xu, Zhexin Li, Lingchen Liu, Zheng Lou, Lili Wang
Summary: By using magnetron sputtering technology, the monolithic integration of large area tellurium optoelectronic functional units is achieved. The type II heterojunction constructed by tellurium (Te) and silicon (Si) effectively separates the photogenerated carriers, prolonging the carrier lifetime and improving the photoresponse by several orders of magnitude. The tellurium/silicon (Te/Si) heterojunction photodetector exhibits excellent detectivity and ultra-fast turn-on time. An imaging array (20 x 20 pixels) based on the Te/Si heterojunction is demonstrated and high-contrast photoelectric imaging is achieved. Compared to Si arrays, the Te/Si array significantly enhances the efficiency and accuracy of subsequent processing tasks when electronic pictures are applied to simulate an artificial vision system using artificial neural networks (ANN).
Article
Chemistry, Physical
Hang Yin, Yanzhen Guo, Nan Zhang, Yuyang Wang, Shouren Zhang, Ruibin Jiang
Summary: In this study, a BiVO4/Au/NiFeOOH sandwich structure was constructed for enhanced photoelectrochemical (PEC) water oxidation. The incorporation of Au nanoparticles (NPs) further improved the PEC performance by promoting the generation of hot holes, improving photocarrier separation, and enhancing the water oxidation activity of NiFeOOH. This work not only provides a new approach for the fabrication of highly efficient PEC photoanodes for water oxidation, but also deepens the understanding of the role of Au NPs in promoting PEC water splitting.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ling Wei, Jun Zhang, Mengnan Ruan
Summary: In this study, CdS was modified by In2S3 and NiOOH using SITAR and photoassisted electrodeposition to construct a CdS/In2S3/NiOOH heterojunction, which significantly improved the efficiency of photogenerated carrier separation and protected CdS from photocorrosion.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yanfeng Cao, Xu Shi, Tomoya Oshikiri, Shuai Zu, Yuji Sunaba, Keiji Sasaki, Hiroaki Misawa
Summary: Near-field engineering was conducted on an Au-NP/TiO2/Au-film (ATA) photoanode to improve water oxidation efficiency, resulting in approximately 1.3-fold higher average photocurrent conversion efficiency compared to the original design.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Guo-Qiang Liu, Yuan Yang, Yi Li, Chao-Gang Wang, Chao Gu, Liang Wu, Jun Hu, Junfa Zhu, Shu-Hong Yu
Summary: In this study, a near-infrared light-active periodic plasmonic heterostructure composed of semimetallic Bi nanoparticles and Bi-3(Se n Te1-n )(2) ternary alloy nanowires was designed to extend the light absorption range and utilize the surface plasmon resonance (SPR) effect more efficiently. Compared to noble metals, metallic Bi can excite the SPR effect in the entire ultraviolet-to-NIR range. The periodic heterostructure can alleviate the localization of the SPR and improve the charge transfer and redox kinetics through the efficient utilization of local electromagnetic fields and photothermal heating. As a result, the photoanode achieves an incident photon-to-current conversion efficiency of 22% at 800nm and a photocurrent density of 13.8 mA/cm² at 0.85 V-RHE under visible light without any cocatalysts.
CHEMISTRY OF MATERIALS
(2023)
Article
Energy & Fuels
Kaiyue Gao, Haibao Zhu, Chengming Zhang, Xiaojie Song, Li Lao, Liping Ni, Jianli Chen, Congliang Cheng, Xiufang Wang
Summary: This study explores new strategies to improve the nitrogen fixation performance of catalysts by constructing Bi metal active sites on the surface of BiOBr/BiOI heterojunction. The ternary BiOBr/BiOI/Bi catalyst demonstrates excellent photocatalytic reduction of nitrogen to ammonia, with a nitrogen reduction rate significantly higher than that of pure BiOBr and BiOBr/BiOI. The study also proposes a mechanism for the photocatalytic nitrogen fixation of the BiOBr/BiOI/Bi.
Article
Chemistry, Multidisciplinary
Linkai Han, Haifeng Yu, Zhonghua Xiang
Summary: Transition metal-nitrogen-carbon materials with asymmetric MN4 sites based on the 3-s-triazine of g-C3N4 are proposed as promising catalysts for oxygen evolution reaction (OER). Compared to symmetric active sites, the asymmetric MN4 sites directly modulate the oxygen species adsorption, leading to higher OER intrinsic activity. In Silico screening suggests that cobalt has the best OER activity among familiar nonprecious transition metals. Experimental results show that the intrinsic activity of asymmetric active sites is enhanced by 48.4% compared to the symmetric ones, and a-CoN4@NC exhibits excellent activity as an OER catalyst in an alkaline water electrolyzer device.
Article
Chemistry, Multidisciplinary
Xiao Ma, Riccardo Ollearo, Bas T. van Gorkom, Christ H. L. Weijtens, Marco Fattori, Stefan C. J. Meskers, Albert J. J. M. van Breemen, Rene A. J. Janssen, Gerwin H. Gelinck
Summary: Trap states in organic semiconductors, particularly in bulk-heterojunction photodiodes, have been investigated using three sensitive techniques. The study reveals that intra-gap states in the polymers, lying above the energy of the highest occupied molecular orbital, are responsible for the reverse-bias dark current density. The results emphasize the importance of reducing the energy and density of these intra-gap states for improving the performance of near-infrared organic photodiodes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lixuan Liu, Yang Yang, Lingyun Zhu, Jianqi Zhang, Kun Chen, Zhixiang Wei
Summary: This study presents the successful development of high-performing direct near-infrared circularly polarized light photodetectors with high dissymmetry factor, responsivity, detectivity, and response speed. Introducing supramolecular chirality achieved an optimal balance between optoelectronic performance and chiroptical properties, enabling the photodetector to exhibit excellent performance in the NIR region.
Article
Chemistry, Multidisciplinary
Huilin Xie, Zhenyu Bi, Junli Yin, Zeshun Li, Lianrui Hu, Chen Zhang, Jianquan Zhang, Jacky W. Y. Lam, Pengfei Zhang, Ryan T. K. Kwok, Kai Li, Ben Zhong Tang
Summary: Fluorescence-guided phototherapy is an emerging noninvasive cancer treatment strategy. Organic molecules, with their easy construction, simple modification, and good biocompatibility, have shown promise as theranostic agents. This study successfully developed a versatile theranostic platform based on an aggregation-induced emission luminogen, TPA-TBT, which exhibited near-infrared emission, high fluorescence quantum yield, robust reactive oxygen species production, and excellent photothermal conversion efficiency. In vivo studies demonstrated its outstanding efficacy in both photodynamic and photothermal therapies against tumors in a mouse model. This work provides a design strategy for developing all-in-one cancer theranostic agents by modulating and utilizing the relaxation energy of excitons.
Article
Nanoscience & Nanotechnology
Mengke Cai, Xin Li, Hongyang Zhao, Cheng Liu, Yimin You, Feng Lin, Xin Tong, Zhiming M. Wang
Summary: This study reported the use of NIR core-shell quantum dots as a light sensitizer and charge carrier separator to enhance the water splitting efficiency in PEC systems by decorating them on the BiVO4 photoanode. The modified photoanodes showed higher photocurrent density and stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Ye-Tao Chen, Xinyi Wen, Jiaxing He, Zhanhua Li, Sheng Zhu, Wenbin Chen, Jierong Yu, Yan Guo, Shaofei Ni, Shunli Chen, Li Dang, Ming-De Li
Summary: This study explores the intermolecular interactions of cocrystals in regulating photothermal conversion efficiency, demonstrating that pi-pi stacking and p-pi interactions play crucial roles in enhancing near-infrared light absorption. The findings offer a strategy to boost photothermal conversion efficiency by tuning the interactions between cocrystal materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Qingzhi Han, Xuan Zhao, Na Na, Jin Ouyang
Summary: The research combined PEC sensing with NIR-induced FV to develop a dual readout sensing platform, allowing for quick qualitative and quantitative analysis under different light conditions. The biosensor showed acceptable preliminary performance in prostate-specific antigen analysis, indicating promising potential in clinical and biological studies.
ANALYTICAL CHEMISTRY
(2021)
Article
Optics
Ya Jun Ma, Peng Fei Ji, Yong Li, Yue Li Song, Feng Qun Zhou
Summary: In this study, the performance of heterojunctions was improved by adding a CdS layer to the interface of CdS/Si heterojunctions and annealing treatment. It was observed that with increasing applied voltage, the CdS/Si heterojunctions emitted near-infrared light, which is significant for optoelectronic devices.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Mingchuan Luo, Adnan Ozden, Ziyun Wang, Fengwang Li, Jianan Erick Huang, Sung-Fu Hung, Yuhang Wang, Jun Li, Dae-Hyun Nam, Yuguang C. Li, Yi Xu, Ruihu Lu, Shuzhen Zhang, Yanwei Lum, Yang Ren, Longlong Fan, Fei Wang, Hui-hui Li, Dominique Appadoo, Cao-Thang Dinh, Yuan Liu, Bin Chen, Joshua Wicks, Haijie Chen, David Sinton, Edward H. Sargent
Summary: Upgrading carbon dioxide/monoxide to multi-carbon C2+ products using renewable electricity offers a sustainable approach to fuel and chemical production. A new coordination polymer catalyst consisting of Cu(I) and benzimidazole units linked via Cu(I)-imidazole coordination bonds enables selective reduction of CO to acetate with a 61% Faradaic efficiency. The catalyst integrated in a cation exchange membrane-based membrane electrode assembly allows stable acetate electrosynthesis and achieves concentrated acetate collection, high CO-to-acetate conversion efficiency, and good acetate full-cell energy efficiency.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Hao Chen, Aidan Maxwell, Chongwen Li, Sam Teale, Bin Chen, Tong Zhu, Esma Ugur, George Harrison, Luke Grater, Junke Wang, Zaiwei Wang, Lewei Zeng, So Min Park, Lei Chen, Peter Serles, Rasha Abbas Awni, Biwas Subedi, Xiaopeng Zheng, Chuanxiao Xiao, Nikolas J. Podraza, Tobin Filleter, Cheng Liu, Yi Yang, Joseph M. Luther, Stefaan De Wolf, Mercouri G. Kanatzidis, Yanfa Yan, Edward H. Sargent
Summary: The open-circuit voltage deficit in wide-bandgap perovskite solar cells is larger than in perovskites with a bandgap of approximately 1.5 eV. The limiting factor for the open-circuit voltage is found to be recombination at the electron-transport-layer contact, resulting from inhomogeneous surface potential and poor energetic alignment. To address this issue, a new surface treatment using diammonium molecules is introduced to achieve a more uniform distribution of surface potential.
Article
Chemistry, Multidisciplinary
Ning Wang, Pengfei Ou, Rui Kai Miao, Yuxin Chang, Ziyun Wang, Sung-Fu Hung, Jehad Abed, Adnan Ozden, Hsuan-Yu Chen, Heng-Liang Wu, Jianan Erick Huang, Daojin Zhou, Weiyan Ni, Lizhou Fan, Yu Yan, Tao Peng, David Sinton, Yongchang Liu, Hongyan Liang, Edward H. Sargent
Summary: Acidic water electrolysis is used to produce hydrogen for chemical and fuel applications. Doping Ba cations into a Co3O4 framework promotes the oxide path mechanism and improves activity in acidic electrolytes, leading to more efficient water oxidation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Pawan Kumar, Karthick Kannimuthu, Ali Shayesteh Zeraati, Soumyabrata Roy, Xiao Wang, Xiyang Wang, Subhajyoti Samanta, Kristen A. Miller, Maria Molina, Dhwanil Trivedi, Jehad Abed, Astrid Campos Mata, Hasan Al-Mahayni, Jonas Baltrusaitis, George Shimizu, Yimin A. Wu, Ali Seifitokaldani, Edward H. Sargent, Pulickel M. Ajayan, Jinguang Hu, Md Golam Kibria
Summary: This study presents a macromolecule-assisted synthesis approach for single atom catalysts (SACs) that allows for the production of high-density cobalt single atoms with exceptional catalytic properties. The resulting SACs, embedded within a highly porous carbon network, exhibited significantly enhanced electrocatalytic activity for the oxygen evolution reaction (OER), with long-term stability. Experimental and theoretical results provide valuable insights into the mechanisms underlying the improved catalytic performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ya-Kun Wang, Haoyue Wan, Jian Xu, Yun Zhong, Eui Dae Jung, So Min Park, Sam Teale, Muhammad Imran, You-Jun Yu, Pan Xia, Yu-Ho Won, Kwang-Hee Kim, Zheng-Hong Lu, Liang-Sheng Liao, Sjoerd Hoogland, Edward H. Sargent
Summary: Researchers have developed a bifunctional ETL (CNT2T) to address the issues caused by the electron-transporting layer (ETL) in red InP LEDs, resulting in significantly improved efficiency and brightness of the devices.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Amanda F. Baxter, Jehad Abed, Daniela V. Fraga V. Alvarez, Daojin Zhou, Dhruti Kuvar, Edward H. Sargent, Daniel V. Esposito
Summary: In this study, RuO2 nanoparticles were encapsulated with semipermeable, nanoscopic SiOx overlayers to improve their stability. The best-performing SiOx|RuO2 electrodes consisted of 2-3 nm thick SiOx overlayers on top of RuO2 particles. These electrodes exhibited lower overpotentials and demonstrated an ability to retain OER activity over time.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Jian Jin, Joshua Wicks, Qiuhong Min, Jun Li, Yongfeng Hu, Jingyuan Ma, Yu Wang, Zheng Jiang, Yi Xu, Ruihu Lu, Gangzheng Si, Panagiotis Papangelakis, Mohsen Shakouri, Qunfeng Xiao, Pengfei Ou, Xue Wang, Zhu Chen, Wei Zhang, Kesong Yu, Jiayang Song, Xiaohang Jiang, Peng Qiu, Yuanhao Lou, Dan Wu, Yu Mao, Adnan Ozden, Chundong Wang, Bao Yu Xia, Xiaobing Hu, Vinayak P. Dravid, Yun-Mui Yiu, Tsun-Kong Sham, Ziyun Wang, David Sinton, Liqiang Mai, Edward H. Sargent, Yuanjie Pang
Summary: The carbon dioxide and carbon monoxide electroreduction reactions are promising pathways for decarbonization of chemical manufacture. By dispersing a low concentration of copper atoms in a host metal, acetate can be selectively synthesized from carbon monoxide. Through catalyst design and reactor engineering, high selectivity and Faradaic efficiency for acetate production have been achieved.
Article
Chemistry, Physical
Richard Tran, Janice Lan, Muhammed Shuaibi, Brandon M. Wood, Siddharth Goyal, Abhishek Das, Javier Heras-Domingo, Adeesh Kolluru, Ammar Rizvi, Nima Shoghi, Anuroop Sriram, Felix Therrien, Jehad Abed, Oleksandr Voznyy, Edward H. Sargent, Zachary Ulissi, C. . Lawrence Zitnick
Summary: To address the lack of training data for oxide materials, researchers developed the OC22 dataset consisting of 62,331 DFT relaxations across various oxide materials. By combining the OC22 dataset with the OC20 dataset, significant improvements were achieved in energy predictions for oxide surfaces. This study provides an important benchmark for models aiming to incorporate complex electrostatic and magnetic interactions in oxide surfaces.
Article
Materials Science, Multidisciplinary
Ilgeum Lee, Omar Allam, Jiweon Kim, Yixuan Dou, Hyungju Ahn, Andrew Proppe, Yitong Dong, Dongxin Ma, Li Na Quan, Edward H. Sargent, Seung Soon Jang, Dong Ha Kim
Summary: Efficient blue-emitting materials with single-halide RPPs using organic spacer engineering are reported in this study. The (110)-oriented thin films exhibit larger bandgap and enhanced stability, regardless of the choice of spacers, compared to other structures. This new class of RPPs exhibits sky-blue emission at 483 nm with a quantum efficiency of approximately 62%. The established protocol and strategy can be utilized to develop blue perovskite LEDs.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Jonathan P. Edwards, Theïo Alerte, Colin P. O'Brien, Christine M. Gabardo, Shijie Liu, Joshua Wicks, Adriana Gaona, Jehad Abed, Yurou Celine Xiao, Daniel Young, Armin Sedighian Rasouli, Amitava Sarkar, Shaffiq A. Jaffer, Heather L. MacLean, Edward H. Sargent, David Sinton
Summary: Carbon dioxide electrolysispowered with renewable electricity is a promising method for converting emissions into valuable chemicals and fuels. However, there are technological gaps that need to be addressed before industrial implementation, including pilot plant demonstrations and the development of accurate process models. In this study, a semi-empirical electrolyzer model was developed and validated using lab- and pilot-scale data. The results showed that the model can accurately predict the performance metrics of the electrolyzer, providing a foundation for further scaling of CO2 electrolysis.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Yujin Jung, Hyeyoung Shin, Se-Woong Baek, Truong Ba Tai, Benjamin Scheffel, Olivier Ouellette, Margherita Biondi, Sjoerd Hoogland, F. Pelayo Garcia de Arquer, Edward H. Sargent
Summary: Solution-processed semiconducting materials have potential for high-performance, low-cost, and flexible energy conversion devices. By using a library of surface ligands with different functions, the photophysical mismatch at the colloidal quantum dot (CQD)/organic interface was addressed, resulting in improved charge transfer efficiency. Hybrid CQD/organic heterojunction solar cells showed record photocurrent density and near-unity broadband quantum efficiency.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Mi Gyoung Lee, Xiao-Yan Li, Adnan Ozden, Joshua Wicks, Pengfei Ou, Yuhang Li, Roham Dorakhan, Jaekyoung Lee, Hoon Kee Park, Jin Wook Yang, Bin Chen, Jehad Abed, Roberto dos Reis, Geonhui Lee, Jianan Erick Huang, Tao Peng, Ya-Huei (Cathy) Chin, David Sinton, Edward H. H. Sargent
Summary: We present a cascade C-1-C-2-C-4 system that combines electrochemical and thermochemical reactors to selectively produce C4H10 from CO2 or CO gas at ambient conditions. The use of a C2H4 dimerization reactor directly upgrades the gas outlet stream and significantly enhances the selectivity for C4H10 production.
Article
Multidisciplinary Sciences
Xiao-Long Zhang, Peng-Cheng Yu, Xiao-Zhi Su, Shao-Jin Hu, Lei Shi, Ye-Hua Wang, Peng-Peng Yang, Fei-Yue Gao, Zhi-Zheng Wu, Li-Ping Chi, Ya-Rong Zheng, Min-Rui Gao
Summary: In this study, the researchers achieved a structural transformation in cobalt diselenide under acidic conditions through sulfur doping, resulting in the development of a platinum-free catalyst with acid-resistant properties. This catalyst demonstrated low overpotential, high stability, and improved electrocatalytic performance, making it suitable for use in proton exchange membrane water electrolyzers.
Review
Chemistry, Multidisciplinary
Peng-Peng Yang, Min-Rui Gao
Summary: This article discusses strategies to improve CO2RR performance by enriching reactants and intermediates through catalyst design, local microenvironment modulation, electrolyte regulation, and electrolyzer optimization. The structure and properties of CO2 are presented to demonstrate the necessity and feasibility of reactant and intermediate enrichment. Catalyst design at various scales and the impact of catalyst restructuring on enrichment effects are highlighted. The modulation of local microenvironment and electrolyte to enrich reactants and intermediates is discussed. The importance of electrolyzer optimization in promoting enrichment effects is also considered. The review concludes with an outline of remaining technological challenges and suggestions for the future implementation of enrichment strategies in CO2 electrolysis technology.
CHEMICAL SOCIETY REVIEWS
(2023)