1
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Yu Y, Shi L. Vibrational solvatochromism of the ester carbonyl vibration of PCBM in organic solutions. J Chem Phys 2019. [DOI: 10.1063/1.5111046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Yue Yu
- School of Natural Sciences, University of California, Merced, California 95343, USA
| | - Liang Shi
- School of Natural Sciences, University of California, Merced, California 95343, USA
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2
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Ma T, Bonfanti M, Eisenbrandt P, Martinazzo R, Burghardt I. Multi-configurational Ehrenfest simulations of ultrafast nonadiabatic dynamics in a charge-transfer complex. J Chem Phys 2018; 149:244107. [DOI: 10.1063/1.5062608] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tianji Ma
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt/Main, Germany
| | - Matteo Bonfanti
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt/Main, Germany
| | - Pierre Eisenbrandt
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt/Main, Germany
| | - Rocco Martinazzo
- Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Irene Burghardt
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt/Main, Germany
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3
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Petti MK, Lomont JP, Maj M, Zanni MT. Two-Dimensional Spectroscopy Is Being Used to Address Core Scientific Questions in Biology and Materials Science. J Phys Chem B 2018; 122:1771-1780. [PMID: 29346730 DOI: 10.1021/acs.jpcb.7b11370] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two-dimensional spectroscopy is a powerful tool for extracting structural and dynamic information from a wide range of chemical systems. We provide a brief overview of the ways in which two-dimensional visible and infrared spectroscopies are being applied to elucidate fundamental details of important processes in biological and materials science. The topics covered include amyloid proteins, photosynthetic complexes, ion channels, photovoltaics, batteries, as well as a variety of promising new methods in two-dimensional spectroscopy.
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Affiliation(s)
- Megan K Petti
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Justin P Lomont
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Michał Maj
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Martin T Zanni
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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4
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Kennehan ER, Grieco C, Brigeman AN, Doucette GS, Rimshaw A, Bisgaier K, Giebink NC, Asbury JB. Using molecular vibrations to probe exciton delocalization in films of perylene diimides with ultrafast mid-IR spectroscopy. Phys Chem Chem Phys 2017; 19:24829-24839. [DOI: 10.1039/c7cp04819j] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrafast vibrational spectroscopy provides a direct comparison exciton delocalization in crystalline perylenediimides that informs their use in organic electronic applications.
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Affiliation(s)
- Eric R. Kennehan
- Department of Chemistry
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Christopher Grieco
- Department of Chemistry
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Alyssa N. Brigeman
- Department of Electrical Engineering
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Grayson S. Doucette
- Intercollege Materials Science and Engineering Program
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Adam Rimshaw
- Department of Chemistry
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Kayla Bisgaier
- Department of Chemistry
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - Noel C. Giebink
- Department of Electrical Engineering
- The Pennsylvania State University
- University Park
- PA 16802
- USA
| | - John B. Asbury
- Department of Chemistry
- The Pennsylvania State University
- University Park
- PA 16802
- USA
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5
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Abstract
Organic (opto)electronic materials have received considerable attention due to their applications in thin-film-transistors, light-emitting diodes, solar cells, sensors, photorefractive devices, and many others. The technological promises include low cost of these materials and the possibility of their room-temperature deposition from solution on large-area and/or flexible substrates. The article reviews the current understanding of the physical mechanisms that determine the (opto)electronic properties of high-performance organic materials. The focus of the review is on photoinduced processes and on electronic properties important for optoelectronic applications relying on charge carrier photogeneration. Additionally, it highlights the capabilities of various experimental techniques for characterization of these materials, summarizes top-of-the-line device performance, and outlines recent trends in the further development of the field. The properties of materials based both on small molecules and on conjugated polymers are considered, and their applications in organic solar cells, photodetectors, and photorefractive devices are discussed.
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Affiliation(s)
- Oksana Ostroverkhova
- Department of Physics, Oregon State University , Corvallis, Oregon 97331, United States
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6
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Xie Y, Zheng J, Lan Z. Full-dimensional multilayer multiconfigurational time-dependent Hartree study of electron transfer dynamics in the anthracene/C60 complex. J Chem Phys 2016; 142:084706. [PMID: 25725750 DOI: 10.1063/1.4909521] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Electron transfer at the donor-acceptor heterojunctions plays a critical role in the photoinduced process during the solar energy conversion in organic photovoltaic materials. We theoretically investigate the electron transfer process in the anthracene/C60 donor-acceptor complex by using quantum dynamics calculations. The electron-transfer model Hamiltonian with full dimensionality was built by quantum-chemical calculations. The quantum dynamics calculations were performed using the multiconfigurational time-dependent Hartree (MCTDH) theory and multilayer (ML) MCTDH methods. The latter approach (ML-MCTDH) allows us to conduct the comprehensive study on the quantum evolution of the full-dimensional electron-transfer model including 4 electronic states and 246 vibrational degrees of freedom. Our quantum dynamics calculations exhibit the ultrafast anthracene → C60 charge transfer process because of the strong coupling between excitonic and charge transfer states. This work demonstrates that the ML-MCTDH is a very powerful method to treat the quantum evolution of complex systems.
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Affiliation(s)
- Yu Xie
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Jie Zheng
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Zhenggang Lan
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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7
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Hughes KH, Cahier B, Martinazzo R, Tamura H, Burghardt I. Non-Markovian reduced dynamics of ultrafast charge transfer at an oligothiophene–fullerene heterojunction. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.06.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Chenel A, Mangaud E, Burghardt I, Meier C, Desouter-Lecomte M. Exciton dissociation at donor-acceptor heterojunctions: Dynamics using the collective effective mode representation of the spin-boson model. J Chem Phys 2014; 140:044104. [DOI: 10.1063/1.4861853] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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9
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Skoff DR, Laaser JE, Mukherjee SS, Middleton CT, Zanni MT. Simplified and economical 2D IR spectrometer design using a dual acousto-optic modulator. Chem Phys 2013; 422:8-15. [PMID: 24659850 DOI: 10.1016/j.chemphys.2012.08.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Over the last decade two-dimensional infrared (2D IR) spectroscopy has proven to be a very useful extension of infrared spectroscopy, yet the technique remains restricted to a small group of specialized researchers because of its experimental complexity and high equipment cost. We report on a spectrometer that is compact, mechanically robust, and is much less expensive than previous designs because it uses a single pixel MCT detector rather than an array detector. Moreover, each axis of the spectrum can be collected in either the time or frequency domain via computer programming. We discuss pulse sequences for scanning the probe axis, which were not previously possible. We present spectra on metal carbonyl compounds at 5 µm and a model peptide at 6 µm. Data collection with a single pixel MCT takes longer than using an array detector, but publishable quality data are still achieved with only a few minutes of averaging.
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Affiliation(s)
- David R Skoff
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Jennifer E Laaser
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Sudipta S Mukherjee
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Chris T Middleton
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Martin T Zanni
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
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10
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Jeong KS, Pensack RD, Asbury JB. Vibrational spectroscopy of electronic processes in emerging photovoltaic materials. Acc Chem Res 2013; 46:1538-47. [PMID: 23514085 DOI: 10.1021/ar300300m] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Molecules affect the electronic properties of many emerging materials, ranging from organic thin film transistors and light emitting diodes for flexible displays to colloidal quantum dots (CQDs) used in solution processed photovoltaics and photodetectors. For example, the interactions of conjugated molecules not only influence morphological and charge transport properties of organic photovoltaic (OPV) materials, but they also determine the primary photophysical events leading to charge generation. Ligand-nanocrystal interactions affect the density and energetic distributions of trap states, which in turn influence minority carrier transport in CQD photovoltaics. Therefore, it is critical for scientists to understand how the underlying molecular structures and morphologies determine the electronic properties of emerging materials. Recently, chemists have used vibrational spectroscopy to study electronic processes in emerging materials, and been able to directly measure the influence molecular properties have on those processes. Time-resolved vibrational spectroscopy is uniquely positioned to examine molecular species involved in electronic processes because it combines ultrafast time resolution with measurement of the vibrational spectra of molecules. For instance, molecules at the electron donor/acceptor interfaces in OPV materials have unique vibrational features because vibrational frequencies of molecules are sensitive to their local molecular environments. Through ultrafast vibrational spectroscopy, researchers can directly examine the dynamics of charge transfer (CT) state formation and dissociation to form charge separated states specifically at donor/acceptor interfaces. Vibrational modes of ligands are also sensitive to their bonding interactions with nanocrystal surfaces, which enables chemists to directly probe the molecular nature of charge trap states in colloidal quantum dot solids. Because of the ability to connect electrical properties with the underlying molecular species, scientists can use ultrafast vibrational spectroscopy to address fundamental challenges in the development of emerging electronic materials. In this Account, we focus on two applications of vibrational spectroscopy to examine electronic processes in OPV and CQD photovoltaic materials. In the first application, we examine archetypal classes of electron acceptors in OPV materials and reveal how their molecular structures influence the dynamics and energetic barriers to CT state formation and dissociation. In the second application, we discuss the surface chemistry of ligand-nanocrystal interactions and how they impact the density and energetic distribution of charge trap states in CQD photovoltaic materials. Through direct observations of the vibrational features of ligands attached to surface trap states, we can obtain valuable insights into the nature of charge traps and begin to understand pathways for their elimination. We expect that further examination of electronic processes in materials using ultrafast vibrational spectroscopy will lead to new design rules in support of continued materials development efforts.
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Affiliation(s)
- Kwang S. Jeong
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ryan D. Pensack
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - John B. Asbury
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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11
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Tamura H, Martinazzo R, Ruckenbauer M, Burghardt I. Quantum dynamics of ultrafast charge transfer at an oligothiophene-fullerene heterojunction. J Chem Phys 2012; 137:22A540. [DOI: 10.1063/1.4751486] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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12
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Dimitrov SD, Bakulin AA, Nielsen CB, Schroeder BC, Du J, Bronstein H, McCulloch I, Friend RH, Durrant JR. On the Energetic Dependence of Charge Separation in Low-Band-Gap Polymer/Fullerene Blends. J Am Chem Soc 2012; 134:18189-92. [DOI: 10.1021/ja308177d] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Stoichko D. Dimitrov
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Artem A. Bakulin
- Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United
Kingdom
| | - Christian B. Nielsen
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Bob C. Schroeder
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Junping Du
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Hugo Bronstein
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Iain McCulloch
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Richard H. Friend
- Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United
Kingdom
| | - James R. Durrant
- Centre for Plastic Electronics,
Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
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13
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Elliott ABS, Horvath R, Gordon KC. Vibrational spectroscopy as a probe of molecule-based devices. Chem Soc Rev 2012; 41:1929-46. [DOI: 10.1039/c1cs15208d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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