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Pham PV, Mai TH, Do HB, Vasundhara M, Nguyen VH, Nguyen T, Bui HV, Dao VD, Gupta RK, Ponnusamy VK, Park JH. Layer-by-layer thinning of two-dimensional materials. Chem Soc Rev 2024; 53:5190-5226. [PMID: 38586901 DOI: 10.1039/d3cs00817g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Etching technology - one of the representative modern semiconductor device makers - serves as a broad descriptor for the process of removing material from the surfaces of various materials, whether partially or entirely. Meanwhile, thinning technology represents a novel and highly specialized approach within the realm of etching technology. It indicates the importance of achieving an exceptionally sophisticated and precise removal of material, layer-by-layer, at the nanoscale. Notably, thinning technology has gained substantial momentum, particularly in top-down strategies aimed at pushing the frontiers of nano-worlds. This rapid development in thinning technology has generated substantial interest among researchers from diverse backgrounds, including those in the fields of chemistry, physics, and engineering. Precisely and expertly controlling the layer numbers of 2D materials through the thinning procedure has been considered as a crucial step. This is because the thinning processes lead to variations in the electrical and optical characteristics. In this comprehensive review, the strategies for top-down thinning of representative 2D materials (e.g., graphene, black phosphorus, MoS2, h-BN, WS2, MoSe2, and WSe2) based on conventional plasma-assisted thinning, integrated cyclic plasma-assisted thinning, laser-assisted thinning, metal-assisted splitting, and layer-resolved splitting are covered in detail, along with their mechanisms and benefits. Additionally, this review further explores the latest advancements in terms of the potential advantages of semiconductor devices achieved by top-down 2D material thinning procedures.
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Affiliation(s)
- Phuong V Pham
- Department of Physics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - The-Hung Mai
- Department of Physics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Huy-Binh Do
- Faculty of Applied Science, Ho Chi Minh City University of Technology and Education, Thu Duc 700000, Vietnam
| | - M Vasundhara
- Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | - Van-Huy Nguyen
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
| | - Trieu Nguyen
- Shared Research Facilities, West Virginia University, Morgantown, WV 26506, USA
| | - Hao Van Bui
- Faculty of Materials Science and Engineering and Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi 12116, Vietnam
| | - Van-Duong Dao
- Faculty of Biotechnology, Chemistry, and Environmental Engineering, Phenikaa University, Hanoi 100000, Vietnam
| | - Ram K Gupta
- Department of Chemistry, Kansas Polymer Research Center, Pittsburg State University, Pittsburg, KS-66762, USA
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Jin-Hong Park
- Department of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea.
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2
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Naik P, Swain N, Naik R, Devarajan N, Al-Odayni AB, Abduh NA, Keremane KS, Alagarasan D, Aravinda T, Shivaprasad H. Exploring optical, electrochemical, thermal, and theoretical aspects of simple carbazole-derived organic dyes. Heliyon 2024; 10:e25624. [PMID: 38380028 PMCID: PMC10877267 DOI: 10.1016/j.heliyon.2024.e25624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/22/2024] Open
Abstract
This study highlights the recent advancements in organic electronic materials and their potential for cost-effective optoelectronic devices. The investigation focuses on the molecular design, synthesis, and comprehensive analysis of two organic dyes, aiming to explore their suitability for optoelectronic applications. The dyes are strategically constructed with carbazole as the foundational structure, connecting two electron-withdrawing groups: barbituric acid (Cz-BA) and thiobarbituric acid (Cz-TBA). These dyes, featuring carbazole as the core and electron-withdrawing groups, demonstrate promising spectral, optical, electrochemical, thermal, and theoretical properties. They show strong potential for diverse optoelectronic applications, promising efficient light absorption and robust stability. The results endorse their suitability for practical optoelectronic systems.
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Affiliation(s)
- Praveen Naik
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - Nibedita Swain
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - R. Naik
- Department of Engineering and Materials Physics, Institute of Chemical Technology-Indian Oil Odisha Campus, Bhubaneswar, 751013, India
| | - Nainamalai Devarajan
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Abdel-Basit Al-Odayni
- Department of Restorative Dental Science, College of Dentistry, King Saud University, P. O. Box 60169, Riyadh, 11545, Saudi Arabia
| | - Naaser A.Y. Abduh
- Department of Chemistry, College of Science, King Saud University, Saudi Arabia
| | - Kavya S. Keremane
- Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Devarajan Alagarasan
- Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - T. Aravinda
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, Karnataka, India
| | - H.B. Shivaprasad
- Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, Karnataka, India
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3
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Yang B, Cang J, Li Z, Chen J. Nanocrystals as performance-boosting materials for solar cells. NANOSCALE ADVANCES 2024; 6:1331-1360. [PMID: 38419867 PMCID: PMC10898446 DOI: 10.1039/d3na01063e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024]
Abstract
Nanocrystals (NCs) have been widely studied owing to their distinctive properties and promising application in new-generation photoelectric devices. In photovoltaic devices, semiconductor NCs can act as efficient light harvesters for high-performance solar cells. Besides light absorption, NCs have shown great significance as functional layers for charge (hole and electron) transport and interface modification to improve the power conversion efficiency and stability of solar cells. NC-based functional layers can boost hole/electron transport ability, adjust energy level alignment between a light absorbing layer and charge transport layer, broaden the absorption range of an active layer, enhance intrinsic stability, and reduce fabrication cost. In this review, recent advances in NCs as a hole transport layer, electron transport layer, and interfacial layer are discussed. Additionally, NC additives to improve the performance of solar cells are demonstrated. Finally, a summary and future prospects of NC-based functional materials in solar cells are presented, addressing their limitations and suggesting potential solutions.
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Affiliation(s)
- Boping Yang
- College of Science, Guizhou Institute of Technology Guiyang 550003 China
| | - Junjie Cang
- School of Electrical Engineering, Yancheng Institute of Technology Yancheng 224051 China
| | - Zhiling Li
- College of Science, Guizhou Institute of Technology Guiyang 550003 China
| | - Jian Chen
- College of Artificial Intelligence and Electrical Engineering, Guizhou Institute of Technology Guiyang 550003 China
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4
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Borghesi C, Fabiani C, Bondi R, Latterini L, Castelli IE, Pisello AL, Giorgi G. Tailoring High-Entropy Oxides as Emerging Radiative Materials for Daytime Passive Cooling. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:10384-10393. [PMID: 38162045 PMCID: PMC10753767 DOI: 10.1021/acs.chemmater.3c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/03/2023] [Accepted: 10/03/2023] [Indexed: 01/03/2024]
Abstract
In the framework of intense research about high-entropy materials and their applications in energy-oriented technologies, in the present work, we discuss the potential applicability of selected oxides and of the alloys they form at different concentrations for daytime radiative cooling implementation. In particular, by combining density functional theory and the finite difference method, we provide an unbiased, scattering-free description of structural, electronic, and dynamic features of the best candidates, showing the required strong radiative properties for passive cooling while offering the benefits of affordability and compatibility with commercial coating fabrication processes.
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Affiliation(s)
- Costanza Borghesi
- Department
of Civil & Environmental Engineering (DICA), University of Perugia, Via G. Duranti 93, Perugia 06125, Italy
- CIRIAF
− Interuniversity Research Centre, University of Perugia, Perugia 06125, Italy
| | - Claudia Fabiani
- Department
of Engineering, Università degli
Studi di Perugia, Via G. Duranti 93, Perugia 06125, Italy
- CIRIAF
− Interuniversity Research Centre, University of Perugia, Via G. Duranti 67, Perugia 06125, Italy
| | - Roberto Bondi
- Nano4Light
Lab, Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di sotto 8, Perugia 06123, Italy
| | - Loredana Latterini
- Nano4Light
Lab, Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di sotto 8, Perugia 06123, Italy
| | - Ivano E. Castelli
- Department
of Energy Conversion and Storage, Technical
University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Anna Laura Pisello
- Department
of Engineering, Università degli
Studi di Perugia, Via G. Duranti 93, Perugia 06125, Italy
- CIRIAF
− Interuniversity Research Centre, University of Perugia, Via G. Duranti 67, Perugia 06125, Italy
| | - Giacomo Giorgi
- Department
of Civil & Environmental Engineering (DICA), University of Perugia, Via G. Duranti 93, Perugia 06125, Italy
- CIRIAF
− Interuniversity Research Centre, University of Perugia, Via G. Duranti 67, Perugia 06125, Italy
- CNR-SCITEC, Via Elce di sotto 8, Perugia, 06123, Italy
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Cuadra L, Salcedo-Sanz S, Nieto-Borge JC. Carrier Transport in Colloidal Quantum Dot Intermediate Band Solar Cell Materials Using Network Science. Int J Mol Sci 2023; 24:3797. [PMID: 36835214 PMCID: PMC9960920 DOI: 10.3390/ijms24043797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
Colloidal quantum dots (CQDs) have been proposed to obtain intermediate band (IB) materials. The IB solar cell can absorb sub-band-gap photons via an isolated IB within the gap, generating extra electron-hole pairs that increase the current without degrading the voltage, as has been demonstrated experimentally for real cells. In this paper, we model the electron hopping transport (HT) as a network embedded in space and energy so that a node represents the first excited electron state localized in a CQD while a link encodes the Miller-Abrahams (MA) hopping rate for the electron to hop from one node (=state) to another, forming an "electron-HT network". Similarly, we model the hole-HT system as a network so that a node encodes the first hole state localized in a CQD while a link represents the MA hopping rate for the hole to hop between nodes, leading to a "hole-HT network". The associated network Laplacian matrices allow for studying carrier dynamics in both networks. Our simulations suggest that reducing both the carrier effective mass in the ligand and the inter-dot distance increases HT efficiency. We have found a design constraint: It is necessary for the average barrier height to be larger than the energetic disorder to not degrade intra-band absorption.
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Affiliation(s)
- Lucas Cuadra
- Department of Signal Processing and Communications, University of Alcalá, 28805 Madrid, Spain
- Department of Physics and Mathematics, University of Alcalá, 28805 Madrid, Spain
| | - Sancho Salcedo-Sanz
- Department of Signal Processing and Communications, University of Alcalá, 28805 Madrid, Spain
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Watanabe N, He W, Nozaki N, Matsumoto H, Michinobu T. Benzothiadiazole versus Thiazolobenzotriazole: A Structural Study of Electron Acceptors in Solution-Processable Organic Semiconductors. Chem Asian J 2022; 17:e202200768. [PMID: 36102294 PMCID: PMC9828094 DOI: 10.1002/asia.202200768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/13/2022] [Indexed: 01/12/2023]
Abstract
Despite the rapid progress of organic electronics, developing high-performance n-type organic semiconductors is still challenging. Donor-acceptor (D-A) type conjugated structures have been an effective molecular design strategy to achieve chemically-stable semiconductors and the appropriate choice of the acceptor units determines the electronic properties and device performances. We have now synthesized two types of A1 -D-A2 -D-A1 type conjugated molecules, namely, NDI-BTT-NDI and NDI-TBZT-NDI, with different central acceptor units. In order to investigate the effects of the central acceptor units on the charge-transporting properties, organic field-effect transistors (OFETs) were fabricated. NDI-TBZT-NDI had shallower HOMO and deeper LUMO levels than NDI-BTT-NDI. Hence, the facilitated charge injection resulted in ambipolar transistor performances with the optimized hole and electron mobilities of 0.00134 and 0.151 cm2 V-1 s-1 , respectively. In contrast, NDI-BTT-NDI displayed only an n-channel OFET performance with the electron mobility of 0.0288 cm2 V-1 s-1 . In addition, the device based on NDI-TBZT-NDI showed a superior air stability to that based on NDI-BTT-NDI. The difference in these OFET performances was reasonably explained by the contact resistance and film morphology. Overall, this study demonstrated that the TBZ acceptor is a promising building block to create n-type organic semiconductors.
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Affiliation(s)
- Nanami Watanabe
- Department of Materials Science and EngineeringTokyo Institute of Technology2–12-1 Ookayama, Meguro-kuTokyo152–8552Japan
| | - Waner He
- Department of Materials Science and EngineeringTokyo Institute of Technology2–12-1 Ookayama, Meguro-kuTokyo152–8552Japan
| | - Naoya Nozaki
- Department of Materials Science and EngineeringTokyo Institute of Technology2–12-1 Ookayama, Meguro-kuTokyo152–8552Japan
| | - Hidetoshi Matsumoto
- Department of Materials Science and EngineeringTokyo Institute of Technology2–12-1 Ookayama, Meguro-kuTokyo152–8552Japan
| | - Tsuyoshi Michinobu
- Department of Materials Science and EngineeringTokyo Institute of Technology2–12-1 Ookayama, Meguro-kuTokyo152–8552Japan
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7
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Bernhardt R, Manrho M, Zablocki J, Rieland L, Lützen A, Schiek M, Meerholz K, Zhu J, Jansen TLC, Knoester J, van Loosdrecht PHM. Structural Disorder as the Origin of Optical Properties and Spectral Dynamics in Squaraine Nano-Aggregates. J Am Chem Soc 2022; 144:19372-19381. [PMID: 36240390 DOI: 10.1021/jacs.2c07064] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In contrast to regular J- and H-aggregates, thin film squaraine aggregates usually have broad absorption spectra containing both J-and H-like features, which are favorable for organic photovoltaics. Despite being successfully applied in organic photovoltaics for years, a clear interpretation of these optical properties by relating them to specific excited states and an underlying aggregate structure has not been made. In this work, by static and transient absorption spectroscopy on aggregated n-butyl anilino squaraines, we provide evidence that both the red- and blue-shifted peaks can be explained by assuming an ensemble of aggregates with intermolecular dipole-dipole resonance interactions and structural disorder deriving from the four different nearest neighbor alignments─in sharp contrast to previous association of the peaks with intermolecular charge-transfer interactions. In our model, the next-nearest neighbor dipole-dipole interactions may be negative or positive, which leads to the occurrence of J- and H-like features in the absorption spectrum. Upon femtosecond pulse excitation of the aggregated sample, a transient absorption spectrum deviating from the absorbance spectrum emerges. The deviation finds its origin in the excitation of two-exciton states by the probe pulse. The lifetime of the exciton is confirmed by the band integral dynamics, featuring a single-exponential decay with a lifetime of 205 ps. Our results disclose the aggregated structure and the origin of red- and blue-shifted peaks and explain the absence of photoluminescence in squaraine thin films. Our findings underline the important role of structural disorder of molecular aggregates for photovoltaic applications.
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Affiliation(s)
- Robin Bernhardt
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
| | - Marìck Manrho
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
| | - Jennifer Zablocki
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Lukas Rieland
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
| | - Arne Lützen
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Manuela Schiek
- Institute of Physics, University of Oldenburg, Carl-von-Ossietzky-Str. 9-11, D-26129 Oldenburg, Germany.,LIOS & ZONA, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz, Austria.,Department of Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
| | - Klaus Meerholz
- Department of Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
| | - Jingyi Zhu
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany.,State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Centre for Energy and Environmental Materials, Dalian Institute of Chemical Physics, 116023 Dalian, China
| | - Thomas L C Jansen
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
| | - Jasper Knoester
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands.,Faculty of Science, Leiden University, Einsteinweg 55, NL-2300 RA Leiden, Netherlands
| | - Paul H M van Loosdrecht
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
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Brian D, Sun X. Charge-Transfer Landscape Manifesting the Structure-Rate Relationship in the Condensed Phase Via Machine Learning. J Phys Chem B 2021; 125:13267-13278. [PMID: 34825563 DOI: 10.1021/acs.jpcb.1c08260] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, we develop a machine learning (ML) strategy to map the molecular structure to condensed phase charge-transfer (CT) properties including CT rate constants, energy levels, electronic couplings, energy gaps, reorganization energies, and reaction free energies which are called CT fingerprints. The CT fingerprints of selected landmark structures covering the conformation space of an organic photovoltaic molecule dissolved in an explicit solvent are computed and used to train ML models using kernel ridge regression. The ML models show high predictive power with R2 > 0.97 and both mean absolute error and root-mean-square error within chemical accuracy. The CT landscape for millions of molecular dynamics sampled structures is thus constructed, which allows for instant prediction of CT rate properties, given any conformation of the molecule. We demonstrate some immediate utilities of the CT landscape such as calculating the ensemble-averaged CT rate constant and interpreting the effects of molecular structural features on the CT rate. The unprecedented CT landscape will be useful for investigating real-time CT dynamics in nanoscale- and mesoscale-condensed phase systems and for the optimal fabrication design for homogeneous and heterogeneous optoelectronic devices.
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Affiliation(s)
- Dominikus Brian
- Division of Arts and Sciences, NYU Shanghai, 1555 Century Avenue, Shanghai 200122, China.,NYU-ECNU Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Road North, Shanghai 200062, China.,Department of Chemistry, New York University, New York, New York 10003, United States
| | - Xiang Sun
- Division of Arts and Sciences, NYU Shanghai, 1555 Century Avenue, Shanghai 200122, China.,NYU-ECNU Center for Computational Chemistry at NYU Shanghai, 3663 Zhongshan Road North, Shanghai 200062, China.,Department of Chemistry, New York University, New York, New York 10003, United States.,State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
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