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Velasquez N, B Nunes F, Travnikova O, Ismail I, Guillemin R, Martins JB, Céolin D, Journel L, Fillaud L, Koulentianos D, Kamal C, Püttner R, Piancastelli MN, Simon M, Odelius M, Iannuzzi M, Marchenko T. X-ray induced ultrafast charge transfer in thiophene-based conjugated polymers controlled by core-hole clock spectroscopy. Phys Chem Chem Phys 2024; 26:1234-1244. [PMID: 38099819 DOI: 10.1039/d3cp04303g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
We explore ultrafast charge transfer (CT) resonantly induced by hard X-ray radiation in organic thiophene-based polymers at the sulfur K-edge. A combination of core-hole clock spectroscopy with real-time propagation time-dependent density functional theory simulations gives an insight into the electron dynamics underlying the CT process. Our method provides control over CT by a selective excitation of a specific resonance in the sulfur atom with monochromatic X-ray radiation. Our combined experimental and theoretical investigation establishes that the dominant mechanism of CT in polymer powders and films consists of electron delocalisation along the polymer chain occurring on the low-femtosecond time scale.
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Affiliation(s)
- Nicolas Velasquez
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
| | - Fernanda B Nunes
- Department of Chemistry, University of Zurich, Zurich 8057, Switzerland.
| | - Oksana Travnikova
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Iyas Ismail
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Renaud Guillemin
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Jessica B Martins
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
| | - Denis Céolin
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Loïc Journel
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Laure Fillaud
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, LISE, F-75005 Paris Cedex 05, France
| | - Dimitris Koulentianos
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Department of Physics, University of Gothenburg, Origovägen 6B, SE-412 96 Gothenburg, Sweden
| | - Chinnathambi Kamal
- Theory and Simulations Laboratory, TCPS, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, Maharashtra 400094, India
| | - Ralph Püttner
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Maria Novella Piancastelli
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
| | - Marc Simon
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Michael Odelius
- Department of Physics, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden
| | - Marcella Iannuzzi
- Department of Chemistry, University of Zurich, Zurich 8057, Switzerland.
| | - Tatiana Marchenko
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France.
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, F-91192 Gif-sur-Yvette, France
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Meng Z, Zhang Y, Yang L, Zhao S, Zhou Q, Chen J, Sui J, Wang J, Guo L, Chang L, He J, Wang G, Zang G. A Novel Poly(3-hexylthiophene) Engineered Interface for Electrochemical Monitoring of Ascorbic Acid During the Occurrence of Glutamate-Induced Brain Cytotoxic Edemas. RESEARCH (WASHINGTON, D.C.) 2023; 6:0149. [PMID: 37234604 PMCID: PMC10205589 DOI: 10.34133/research.0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023]
Abstract
Although neuroelectrochemical sensing technology offers unique benefits for neuroscience research, its application is limited by substantial interference in complex brain environments while ensuring biosafety requirements. In this study, we introduced poly(3-hexylthiophene) (P3HT) and nitrogen-doped multiwalled carbon nanotubes (N-MWCNTs) to construct a composite membrane-modified carbon fiber microelectrode (CFME/P3HT-N-MWCNTs) for ascorbic acid (AA) detection. The microelectrode presented good linearity, selectivity, stability, antifouling, and biocompatibility and exhibited great performance for application in neuroelectrochemical sensing. Subsequently, we applied CFME/P3HT-N-MWCNTs to monitor AA release from in vitro nerve cells, ex vivo brain slices, and in vivo living rat brains and determined that glutamate can induce cell edema and AA release. We also found that glutamate activated the N-methyl-d-aspartic acid receptor, which enhanced Na+ and Cl- inflow to induce osmotic stress, resulting in cytotoxic edema and ultimately AA release. This study is the first to observe the process of glutamate-induced brain cytotoxic edema with AA release and to reveal the mechanism. Our work can benefit the application of P3HT in in vivo implant microelectrode construction to monitor neurochemicals, understand the molecular basis of nervous system diseases, and discover certain biomarkers of brain diseases.
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Affiliation(s)
- Zexuan Meng
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Yuchan Zhang
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Lu Yang
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Shuang Zhao
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants,
Bioengineering College of Chongqing University, Chongqing 400030, China
- Jinfeng Laboratory, Chongqing 401329, China
| | - Qiang Zhou
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
- Department of Pathophysiology,
Chongqing Medical University, Chongqing, China
| | - Jiajia Chen
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Jiuxi Sui
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Jian Wang
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Lizhong Guo
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Luyue Chang
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
| | - Jialing He
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants,
Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants,
Bioengineering College of Chongqing University, Chongqing 400030, China
- Jinfeng Laboratory, Chongqing 401329, China
| | - Guangchao Zang
- Institute of Life Science, and Laboratory of Tissue and Cell Biology, Lab Teaching and Management Center,
Chongqing Medical University, Chongqing 400016, China
- Jinfeng Laboratory, Chongqing 401329, China
- Department of Pathophysiology,
Chongqing Medical University, Chongqing, China
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Correa RS, Santos BPS, Ribeiro AC, da Silva LAF, Péan EV, Davies ML, Marques MDFV, Rocco MLM. Spectroscopic study of D 1-A-D 2-A terpolymer films for optoelectronic applications. Phys Chem Chem Phys 2022; 24:17852-17861. [PMID: 35851795 DOI: 10.1039/d2cp01474b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several strategies have been considered in search of more efficient organic materials for charge transfer in photovoltaic devices. Among them, the integration of donor-acceptor (D-A) functional units on a conjugated copolymer has been widely applied. In this framework, we evaluated four terpolymers made up of donor moieties derived from 9,9-dioctylfluorene and 9-(heptadecan-9-yl)-9H-carbazole combined with 2,1,3-benzothiadiazole, the acceptor moiety, in different monomer ratios and polymerization routes (block and random microstructures). The preferred molecular orientation and charge transfer dynamics of the polymeric films were assessed by near edge X-ray absorption fine structure spectroscopy (NEXAFS) and resonant Auger electron spectroscopy (RAES) around the sulfur K-edge. Charge transfer times (τCT) were estimated by the Core-Hole Clock (CHC) method. Films with a high degree of organization were identified for the block terpolymer and random terpolymers with uneven amounts of donor units, showing a preferred orientation of the benzothiadiazole (BT) molecular plane parallel to the substrate surface. The values of τCT measured for all terpolymers were higher than those for typical polymers used in photovoltaic devices, which is not desirable for this type of optoelectronic application, but this may be correlated to the strong acceptor character of BT, the unit probed. To investigate the effect of film formation on the excited state behavior, steady-state and time-resolved photoluminescence measurements were also conducted. X-ray photoelectron spectroscopy (XPS) was employed to characterize the surface chemical composition of the terpolymer films. Based on the spectroscopic data the block copolymer appears to be the most suitable for the desired application.
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Affiliation(s)
- Roger S Correa
- Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-909, Rio de Janeiro, Brazil.
| | - Bianca P S Santos
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-598, Rio de Janeiro, Brazil
| | - Arthur C Ribeiro
- Centro de Pesquisas de Energia Elétrica (Cepel), Cidade Universitária, 21941-911, Rio de Janeiro, Brazil
| | - Luiz Alberto F da Silva
- Centro de Pesquisas de Energia Elétrica (Cepel), Cidade Universitária, 21941-911, Rio de Janeiro, Brazil
| | - Emmanuel V Péan
- SPECIFIC IKC, Materials Research Centre, College of Engineering, Swansea University, UK
| | - Matthew L Davies
- SPECIFIC IKC, Materials Research Centre, College of Engineering, Swansea University, UK.,School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Maria de Fátima V Marques
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-598, Rio de Janeiro, Brazil
| | - Maria Luiza M Rocco
- Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-909, Rio de Janeiro, Brazil.
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Garcia-Basabe Y, Steinberg D, Daminelli LM, Mendoza CD, de Souza EAT, Vicentin FC, G Larrudé D. Charge-transfer dynamics in van der Waals heterojunctions formed by thiophene-based semiconductor polymers and exfoliated franckeite investigated from resonantly core-excited electrons. Phys Chem Chem Phys 2021; 23:16795-16805. [PMID: 34323251 DOI: 10.1039/d1cp01694f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Organic/inorganic van der Waals heterojunctions formed by a combination of 2D materials with semiconductor polymer films enable the fabrication of new device architectures that are interesting for electronic and optoelectronic applications. Here, we investigated the charge-transfer dynamics at the interface between 2D layered franckeite (Fr) and two thiophene-based conjugated polymers (PFO-DBT and P3HT) from the resonantly core-excited electron. The unoccupied electronic states of PFO-DBT/Fr and P3HT/Fr heterojunctions were studied using near-edge X-ray absorption fine structure (NEXAFS) and resonant Auger (RAS) synchrotron-based spectroscopies. We found evidence of ultrafast (subfemtosecond charge-transfer times) interfacial electron delocalization pathways from specific electronic states. For the interface between the PFO-DBT polymer and exfoliated franckeite, the most efficient interfacial electron delocalization pathways were found through π*(S-N) and π*(S-C) electronic states corresponding to the benzothiadiazole and thiophene units. On the other hand, for the P3HT polymer, we found that electrons excited to π-π* and S1s-π*(C-C) electronic states of the P3HT polymer are the most affected by the presence of exfoliated franckeite and consequently are the main interfacial electron-transfer pathways in this heterojunction. Our results have important implications in understanding how ultrafast electron delocalization is taking place in organic/inorganic van der Waals heterojunctions, which is relevant information in designing new devices involving these systems.
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Affiliation(s)
- Yunier Garcia-Basabe
- Universidade Federal da Integração Latino-Americana, UNILA, 85867-970, Foz do Iguaçu, Brazil
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Bergemann K, Léonard F. Giga-Gain at Room Temperature in Functionalized Carbon Nanotube Phototransistors Based on a Nonequilibrium Mechanism. ACS NANO 2020; 14:10421-10427. [PMID: 32692543 DOI: 10.1021/acsnano.0c04296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Achieving high gain in a photodetector is critical to detect weak light fields because of the need to amplify the signal. Here, we report the observation of a gain exceeding 109 for a phototransistor composed of an array of aligned semiconducting carbon nanotubes functionalized with a nanoscale layer of poly(3-hexylthiophene-2,5-diyl) (P3HT). In contrast to the expectation based on simple band alignments, the phototransistor operates by transferring holes between the P3HT and the CNT, trapping negative charge near the nanotubes. This mechanism leads to an integrating detector that is shown to detect as little as 490 aW and to resolve as few as 8-13 photons/nanotube at room temperature. A detailed experimental and theoretical investigation of the mechanism shows that the phototransistor is most sensitive when prepared in a nonequilibrium state.
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Affiliation(s)
- Kevin Bergemann
- Sandia National Laboratories, Livermore, California 94551, United States
| | - François Léonard
- Sandia National Laboratories, Livermore, California 94551, United States
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Borges BGAL, Roman LS, Rocco MLM. Femtosecond and Attosecond Electron Transfer Dynamics of Semiconductors Probed by the Core-Hole Clock Spectroscopy. Top Catal 2019. [DOI: 10.1007/s11244-019-01189-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Garcia-Basabe Y, Parra GG, Barioni MB, Mendoza CD, Vicentin FC, G. Larrudé D. Species selective charge transfer dynamics in a P3HT/MoS2 van der Waals heterojunction: fluorescence lifetime microscopy and core hole clock spectroscopy approaches. Phys Chem Chem Phys 2019; 21:23521-23532. [PMID: 31617508 DOI: 10.1039/c9cp04431k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The π* (C–C) electronic state of the P3HT species is the main pathway for interfacial ultrafast CT in a P3HT/MoS2/SiO2 heterojunction.
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Affiliation(s)
| | - Gustavo G. Parra
- MackGraphe-Graphene and Nanomaterial Research Center
- Mackenzie Presbyterian University
- São Paulo
- Brazil
| | - Marina B. Barioni
- Depto. Química
- Faculdade de Filosofia
- Ciências e Letras de Ribeirão Preto (FFCLRP)
- Universidade de São Paulo
- Ribeirão Preto
| | - Cesar D. Mendoza
- Departamento de Física
- Pontifícia Universidade Católica do Rio de Janeiro
- Rio de Janeiro
- Brazil
| | - Flavio C. Vicentin
- Brazilian Synchrotron Light Laboratory (LNLS)
- Brazilian Center for Research in Energy and Materials (CNPEM)
- Campinas
- Brazil
| | - Dunieskys G. Larrudé
- MackGraphe-Graphene and Nanomaterial Research Center
- Mackenzie Presbyterian University
- São Paulo
- Brazil
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