1
|
Tracy DA, Fernandez-Alberti S, Tretiak S, Roitberg AE. Adiabatic Excited-State Molecular Dynamics with an Explicit Solvent: NEXMD-SANDER Implementation. J Chem Theory Comput 2022; 18:5213-5220. [PMID: 36044726 DOI: 10.1021/acs.jctc.2c00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a method to link the Nonadiabatic EXcited-state Molecular Dynamics (NEXMD) package to the SANDER package supplied by AMBERTOOLS to provide excited-state adiabatic quantum mechanics/molecular mechanics (QM/MM) simulations. NEXMD is a computational package particularly developed to perform simulations of the photoexcitation and subsequent nonadiabatic electronic and vibrational energy relaxation in large multichromophoric conjugated molecules involving several coupled electronic excited states. The NEXMD-SANDER exchange has been optimized in order to achieve excited-state adiabatic dynamics simulations of large conjugated materials in a QM/MM environment, such as an explicit solvent. Dynamics of a substituted polyphenylene vinylene oligomer (PPV3-NO2) in vacuum and different explicit solvents has been used as a test case by performing comparative analysis of changes in its optical spectrum, state-dependent conformational changes, and quantum bond orderings. The method has been tested and compared with respect to previous implicit solvent implementations. Also, the impact on the expansion of the QM region by including a variable number of solvent molecules has been analyzed. Altogether, these results encourage future implementations of NEXMD simulations using the same combination of methods.
Collapse
Affiliation(s)
- Dustin A Tracy
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | | | - Sergei Tretiak
- Theoretical Division, Center for Nonlinear Studies (CNLS) and Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Adrian E Roitberg
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| |
Collapse
|
2
|
Nandy A, Mukherjee S. A Bioinspired Light Harvesting System in Aqueous Medium: Highly Efficient Energy Transfer through the Self Assembly of β-Sheet Nanostructures of Poly-d-Lysine. J Phys Chem Lett 2022; 13:6701-6710. [PMID: 35848986 DOI: 10.1021/acs.jpclett.2c01309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nature has beautifully assembled its light harvesting pigments within protein scaffolds, which ensures a very high energy transfer. Designing a highly efficient artificial bioinspired light harvesting system (LHS) thus requires the nanoscale spatial orientation and electronic control of the associated chromophores. Although DNA has been used as a scaffold to organize chromophores, proteins or polypeptides, however, are very rarely explored. Here, we have developed a highly efficient, artificial, bioinspired LHS using polypeptide (poly-d-lysine, PDL) nanostructures making use of their β-sheet structure in an aqueous alkaline medium. The chromophores used herein are compatible for an energy transfer process and are nonfluorescent in an aqueous medium but exhibit high fluorescence intensity when bound to the nanostructure of PDL. The close proximity of the chromophores results in an energy transfer efficiency of ∼92% besides generating white light emission at a particular molar ratio between the chromophores.
Collapse
Affiliation(s)
- Atanu Nandy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India
| |
Collapse
|
3
|
Schweda B, Reinfelds M, Hofinger J, Bäumel G, Rath T, Kaschnitz P, Fischer RC, Flock M, Amenitsch H, Scharber MC, Trimmel G. Phenylene-Bridged Perylene Monoimides as Acceptors for Organic Solar Cells: A Study on the Structure-Property Relationship. Chemistry 2022; 28:e202200276. [PMID: 35218252 PMCID: PMC9313791 DOI: 10.1002/chem.202200276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 12/13/2022]
Abstract
A series of non-fullerene acceptors based on perylene monoimides coupled in the peri position through phenylene linkers were synthesized via Suzuki-coupling reactions. Various substitution patterns were investigated using density functional theory (DFT) calculations in combination with experimental data to elucidate the geometry and their optical and electrochemical properties. Further investigations of the bulk properties with grazing incidence wide angle X-ray scattering (GIWAXS) gave insight into the stacking behavior of the acceptor thin films. Electrochemical and morphological properties correlate with the photovoltaic performance of devices with the polymeric donor PBDB-T and a maximum efficiency of 3.17 % was reached. The study gives detailed information about structure-property relationships of perylene-linker-perylene compounds.
Collapse
Affiliation(s)
- Bettina Schweda
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Matiss Reinfelds
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Jakob Hofinger
- Linz Institute of Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040, Linz, Austria
| | - Georg Bäumel
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Thomas Rath
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Petra Kaschnitz
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Roland C Fischer
- Institute of Inorganic Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Michaela Flock
- Institute of Inorganic Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| | - Markus Clark Scharber
- Linz Institute of Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040, Linz, Austria
| | - Gregor Trimmel
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria
| |
Collapse
|
4
|
Rama Krishna VS, Adak S, Jana P, Bheemireddy V, Bandyopadhyay S. Mimicking the Energy Funnel of the Photosynthetic Unit Using a Dendrimer-Dye Supramolecular Assembly. Chem Asian J 2021; 16:3481-3486. [PMID: 34487427 DOI: 10.1002/asia.202100886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/01/2021] [Indexed: 11/10/2022]
Abstract
Photosynthesis involves light-harvesting complexes where an array of antenna pigment channels the absorbed solar energy to the reaction centre of a photosystem. This work reports a supramolecular dendrimer-dye assembly that mimics the natural light-harvesting mechanism. A dendrimeric molecule based on two-fluorophores has been constructed with three coumarin units at the end of three long arms and a 7-diethylaminocoumarin unit at the interior. The molecule self-aggregates in water into spherical micelles, which can encapsulate a rose-bengal dye (RB). On excitation, peripheral coumarin units shuttled the energy to the loaded RB dye reaction center via a two-step cascade resonance energy transfer (RET). The energy absorbed in the periphery is funnelled efficiently, resulting in a strong emission from the dye that resembles an energy funnel. The energy transfer cascade has been studied with both steady-state and time-resolved fluorescence spectroscopy. Molecular dynamics simulations of the self-assembled aggregates in water were also in agreement with the experimental observations.
Collapse
Affiliation(s)
- V Siva Rama Krishna
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Soumen Adak
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Palash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Varun Bheemireddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Subhajit Bandyopadhyay
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| |
Collapse
|
5
|
Nelson TR, White AJ, Bjorgaard JA, Sifain AE, Zhang Y, Nebgen B, Fernandez-Alberti S, Mozyrsky D, Roitberg AE, Tretiak S. Non-adiabatic Excited-State Molecular Dynamics: Theory and Applications for Modeling Photophysics in Extended Molecular Materials. Chem Rev 2020; 120:2215-2287. [PMID: 32040312 DOI: 10.1021/acs.chemrev.9b00447] [Citation(s) in RCA: 179] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Optically active molecular materials, such as organic conjugated polymers and biological systems, are characterized by strong coupling between electronic and vibrational degrees of freedom. Typically, simulations must go beyond the Born-Oppenheimer approximation to account for non-adiabatic coupling between excited states. Indeed, non-adiabatic dynamics is commonly associated with exciton dynamics and photophysics involving charge and energy transfer, as well as exciton dissociation and charge recombination. Understanding the photoinduced dynamics in such materials is vital to providing an accurate description of exciton formation, evolution, and decay. This interdisciplinary field has matured significantly over the past decades. Formulation of new theoretical frameworks, development of more efficient and accurate computational algorithms, and evolution of high-performance computer hardware has extended these simulations to very large molecular systems with hundreds of atoms, including numerous studies of organic semiconductors and biomolecules. In this Review, we will describe recent theoretical advances including treatment of electronic decoherence in surface-hopping methods, the role of solvent effects, trivial unavoided crossings, analysis of data based on transition densities, and efficient computational implementations of these numerical methods. We also emphasize newly developed semiclassical approaches, based on the Gaussian approximation, which retain phase and width information to account for significant decoherence and interference effects while maintaining the high efficiency of surface-hopping approaches. The above developments have been employed to successfully describe photophysics in a variety of molecular materials.
Collapse
Affiliation(s)
- Tammie R Nelson
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Alexander J White
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Josiah A Bjorgaard
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Andrew E Sifain
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States.,U.S. Army Research Laboratory , Aberdeen Proving Ground , Maryland 21005 , United States
| | - Yu Zhang
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Benjamin Nebgen
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | | | - Dmitry Mozyrsky
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Adrian E Roitberg
- Department of Chemistry , University of Florida , Gainesville , Florida 32611 , United States
| | - Sergei Tretiak
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| |
Collapse
|
6
|
Zhang G, Zhao J, Chow PCY, Jiang K, Zhang J, Zhu Z, Zhang J, Huang F, Yan H. Nonfullerene Acceptor Molecules for Bulk Heterojunction Organic Solar Cells. Chem Rev 2018; 118:3447-3507. [PMID: 29557657 DOI: 10.1021/acs.chemrev.7b00535] [Citation(s) in RCA: 570] [Impact Index Per Article: 95.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The bulk-heterojunction blend of an electron donor and an electron acceptor material is the key component in a solution-processed organic photovoltaic device. In the past decades, a p-type conjugated polymer and an n-type fullerene derivative have been the most commonly used electron donor and electron acceptor, respectively. While most advances of the device performance come from the design of new polymer donors, fullerene derivatives have almost been exclusively used as electron acceptors in organic photovoltaics. Recently, nonfullerene acceptor materials, particularly small molecules and oligomers, have emerged as a promising alternative to replace fullerene derivatives. Compared to fullerenes, these new acceptors are generally synthesized from diversified, low-cost routes based on building block materials with extraordinary chemical, thermal, and photostability. The facile functionalization of these molecules affords excellent tunability to their optoelectronic and electrochemical properties. Within the past five years, there have been over 100 nonfullerene acceptor molecules synthesized, and the power conversion efficiency of nonfullerene organic solar cells has increased dramatically, from ∼2% in 2012 to >13% in 2017. This review summarizes this progress, aiming to describe the molecular design strategy, to provide insight into the structure-property relationship, and to highlight the challenges the field is facing, with emphasis placed on most recent nonfullerene acceptors that demonstrated top-of-the-line photovoltaic performances. We also provide perspectives from a device point of view, wherein topics including ternary blend device, multijunction device, device stability, active layer morphology, and device physics are discussed.
Collapse
Affiliation(s)
- Guangye Zhang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China.,HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, Hi-tech Park , Nanshan, Shenzhen 518057 , China
| | - Jingbo Zhao
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China
| | - Philip C Y Chow
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China.,HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, Hi-tech Park , Nanshan, Shenzhen 518057 , China
| | - Kui Jiang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China.,HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, Hi-tech Park , Nanshan, Shenzhen 518057 , China
| | - Jianquan Zhang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China.,HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, Hi-tech Park , Nanshan, Shenzhen 518057 , China
| | - Zonglong Zhu
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China
| | - Jie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - He Yan
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction , Hong Kong University of Science and Technology (HKUST) , Clear Water Bay , Kowloon, Hong Kong , China.,HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, Hi-tech Park , Nanshan, Shenzhen 518057 , China.,Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| |
Collapse
|
7
|
Nguyen TH, Nguyen TA, Tran HM, Nguyen LTT, Luu AT, Lee JY, Nguyen HT. N-Benzoyl dithieno[3,2-b:2',3'-d]pyrrole-based hyperbranched polymers by direct arylation polymerization. Chem Cent J 2017; 11:135. [PMID: 29270833 PMCID: PMC5740055 DOI: 10.1186/s13065-017-0367-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 12/14/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although poly(N-acyl dithieno[3,2-b:2',3'-d]pyrrole)s have attracted great attention as a new class of conducting polymers with highly stabilized energy levels, hyperbranched polymers based on this monomer type have not yet been studied. Thus, this work aims at the synthesis of novel hyperbranched polymers containing N-benzoyl dithieno[3,23,2-b:2',3'-d]pyrrole acceptor unit and 3-hexylthiophene donor moiety via the direct arylation polymerization method. Their structures, molecular weights and thermal properties were characterized via 1H NMR and FTIR spectroscopies, GPC, TGA, DSC and XRD measurements, and the optical properties were investigated by UV-vis and fluorescence spectroscopies. RESULTS Hyperbranched conjugated polymers containing N-benzoyl dithieno[3,23,2-b:2',3'-d]pyrrole acceptor unit and 3-hexylthiophene donor moiety, linked with either triphenylamine or triphenylbenzene as branching unit, were obtained via direct arylation polymerization of the N-benzoyl dithieno[3,23,2-b:2',3'-d]pyrrole, 2,5-dibromo 3-hexylthiophene and tris(4-bromophenyl)amine (or 1,3,5-tris(4-bromophenyl)benzene) monomers. Organic solvent-soluble polymers with number-average molecular weights of around 18,000 g mol-1 were obtained in 80-92% yields. The DSC and XRD results suggested that the branching structure hindered the stacking of polymer chains, leading to crystalline domains with less ordered packing in comparison with the linear analogous polymers. The results revealed that the hyperbranched polymer with triphenylbenzene as the branching unit exhibited a strong red-shift of the maximum absorption wavelength, attributed to a higher polymer stacking order as a result of the planar structure of triphenylbenzene. CONCLUSION Both hyperbranched polymers with triphenylamine/triphenylbenzene as branching moieties exhibited high structural order in thin films, which can be promising for organic solar cell applications. The UV-vis absorption of the hyperbranched polymer containing triphenylbenzene as branching unit was red-shifted as compared with the triphenylamine-containing polymer, as a result of a higher chain packing degree.
Collapse
Affiliation(s)
- Tam Huu Nguyen
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
| | - Thu Anh Nguyen
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Department of Chemical Engineering, Sungkyunkwan University, Suwon, 16419 Republic of Korea
| | - Hoan Minh Tran
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
| | - Le-Thu T. Nguyen
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
| | - Anh Tuan Luu
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
| | - Jun Young Lee
- Department of Chemical Engineering, Sungkyunkwan University, Suwon, 16419 Republic of Korea
| | - Ha Tran Nguyen
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Materials Technology Key Laboratory (Mtlab), Vietnam National University-Ho Chi Minh City, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, 70000 Vietnam
| |
Collapse
|
8
|
Nelson T, Fernandez-Alberti S, Roitberg AE, Tretiak S. Electronic Delocalization, Vibrational Dynamics, and Energy Transfer in Organic Chromophores. J Phys Chem Lett 2017; 8:3020-3031. [PMID: 28603994 DOI: 10.1021/acs.jpclett.7b00790] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The efficiency of materials developed for solar energy and technological applications depends on the interplay between molecular architecture and light-induced electronic energy redistribution. The spatial localization of electronic excitations is very sensitive to molecular distortions. Vibrational nuclear motions can couple to electronic dynamics driving changes in localization. The electronic energy transfer among multiple chromophores arises from several distinct mechanisms that can give rise to experimentally measured signals. Atomistic simulations of coupled electron-vibrational dynamics can help uncover the nuclear motions directing energy flow. Through careful analysis of excited state wave function evolution and a useful fragmenting of multichromophore systems, through-bond transport and exciton hopping (through-space) mechanisms can be distinguished. Such insights are crucial in the interpretation of fluorescence anisotropy measurements and can aid materials design. This Perspective highlights the interconnected vibrational and electronic motions at the foundation of nonadiabatic dynamics where nuclear motions, including torsional rotations and bond vibrations, drive electronic transitions.
Collapse
Affiliation(s)
- Tammie Nelson
- Theoretical Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | | | - Adrian E Roitberg
- Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
| | - Sergei Tretiak
- Theoretical Division, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| |
Collapse
|
9
|
Helical Aggregates of Building Blocks Formed In Situ from Five Components. Chempluschem 2016; 81:1326-1332. [DOI: 10.1002/cplu.201600419] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Indexed: 01/06/2023]
|
10
|
Sakai H, Ohkubo K, Fukuzumi S, Hasobe T. Photoinduced Processes of Supramolecular Nanoarrays Composed of Porphyrin and Benzo[ghi
]perylenetriimide Units through Triple Hydrogen Bonds with One-Dimensional Columnar Phases. Chem Asian J 2016; 11:613-24. [DOI: 10.1002/asia.201501367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Hayato Sakai
- Department of Chemistry; Faculty of Science and Technology; Keio University; 3-14-1 Hiyoshi Yokohama, Kanagawa 223-8522 Japan
| | - Kei Ohkubo
- Department of Material and Life Science, Graduate School of Engineering; Osaka University; ALCA and SENTAN Japan Science and Technology Agency (JST), Suita; Osaka 565-0871 Japan
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
- Faculty of Science and Engineering, ALCA and SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya, Aichi 468-0073 Japan
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School of Engineering; Osaka University; ALCA and SENTAN Japan Science and Technology Agency (JST), Suita; Osaka 565-0871 Japan
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
- Faculty of Science and Engineering, ALCA and SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya, Aichi 468-0073 Japan
| | - Taku Hasobe
- Department of Chemistry; Faculty of Science and Technology; Keio University; 3-14-1 Hiyoshi Yokohama, Kanagawa 223-8522 Japan
| |
Collapse
|
11
|
Weingarten AS, Kazantsev RV, Palmer LC, Fairfield DJ, Koltonow AR, Stupp SI. Supramolecular Packing Controls H₂ Photocatalysis in Chromophore Amphiphile Hydrogels. J Am Chem Soc 2015; 137:15241-6. [PMID: 26593389 PMCID: PMC4676032 DOI: 10.1021/jacs.5b10027] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
Light harvesting supramolecular assemblies
are potentially useful
structures as components of solar-to-fuel conversion materials. The
development of these functional constructs requires an understanding
of optimal packing modes for chromophores. We investigated here assembly
in water and the photocatalytic function of perylene monoimide chromophore
amphiphiles with different alkyl linker lengths separating their hydrophobic
core and the hydrophilic carboxylate headgroup. We found that these
chromophore amphiphiles (CAs) self-assemble into charged nanostructures
of increasing aspect ratio as the linker length is increased. The
addition of salt to screen the charged nanostructures induced the
formation of hydrogels and led to internal crystallization within
some of the nanostructures. For linker lengths up to seven methylenes,
the CAs were found to pack into 2D crystalline unit cells within ribbon-shaped
nanostructures, whereas the nine methylene CAs assembled into long
nanofibers without crystalline molecular packing. At the same time,
the different molecular packing arrangements after charge screening
led to different absorbance spectra, despite the identical electronic
properties of all PMI amphiphiles. While the crystalline CAs formed
electronically coupled H-aggregates, only CAs with intermediate linker
lengths showed evidence of high intermolecular orbital overlap. Photocatalytic
hydrogen production using a nickel-based catalyst was observed in
all hydrogels, with the highest turnovers observed for CA gels having
intermediate linker lengths. We conclude that the improved photocatalytic
performance of the hydrogels formed by supramolecular assemblies of
the intermediate linker CA molecules likely arises from improved exciton
splitting efficiencies due to their higher orbital overlap.
Collapse
Affiliation(s)
- Adam S Weingarten
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University , Evanston, Illinois 60208, United States
| | - Roman V Kazantsev
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University , Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University , Chicago, Illinois 60611, United States
| | - Daniel J Fairfield
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - Andrew R Koltonow
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University , Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University , Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University , Chicago, Illinois 60611, United States.,Department of Biomedical Engineering, Northwestern University , Evanston, Illinois 60208, United States
| |
Collapse
|
12
|
Galindo JF, Atas E, Altan A, Kuroda DG, Fernandez-Alberti S, Tretiak S, Roitberg AE, Kleiman VD. Dynamics of Energy Transfer in a Conjugated Dendrimer Driven by Ultrafast Localization of Excitations. J Am Chem Soc 2015; 137:11637-44. [DOI: 10.1021/jacs.5b04075] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johan F. Galindo
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Evrim Atas
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | | | | | | | - Sergei Tretiak
- Theoretical
Division, Center for Nonlinear Studies (CNLS) and Center for integrated
Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Adrian E. Roitberg
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Valeria D. Kleiman
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| |
Collapse
|
13
|
Nakamura M, Tsuto K, Jomura A, Takada T, Yamana K. Donor-Acceptor Heterojunction Configurations Based on DNA-Multichromophore Arrays. Chemistry 2015; 21:11788-92. [DOI: 10.1002/chem.201501955] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 12/22/2022]
|
14
|
Hasobe T, Ida K, Sakai H, Ohkubo K, Fukuzumi S. Coronenetetraimide-Centered Cruciform Pentamers Containing Multiporphyrin Units: Synthesis and Sequential Photoinduced Energy- and Electron-Transfer Dynamics. Chemistry 2015; 21:11196-205. [DOI: 10.1002/chem.201500766] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Indexed: 01/07/2023]
|
15
|
Lindquist RJ, Lefler KM, Brown KE, Dyar SM, Margulies EA, Young RM, Wasielewski MR. Energy flow dynamics within cofacial and slip-stacked perylene-3,4-dicarboximide dimer models of π-aggregates. J Am Chem Soc 2014; 136:14912-23. [PMID: 25245598 DOI: 10.1021/ja507653p] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Robust perylene-3,4-dicarboximide (PMI) π-aggregates provide important light-harvesting and electron-hole pair generation advantages in organic photovoltaics and related applications, but relatively few studies have focused on the electronic interactions between PMI chromophores. In contrast, structure-function relationships based on π-π stacking in the related perylene-3,4:9,10-bis(dicarboximides) (PDIs) have been widely investigated. The performance of both PMI and PDI derivatives in organic devices may be limited by the formation of low-energy excimer trap states in morphologies where interchromophore coupling is strong. Here, five covalently bound PMI dimers with varying degrees of electronic interaction were studied to probe the relative chromophore orientations that lead to excimer energy trap states. Femtosecond near-infrared transient absorption spectroscopy was used to observe the growth of a low-energy transition at ~1450-1520 nm characteristic of the excimer state in these covalent dimers. The excimer-state absorption appears in ~1 ps, followed by conformational relaxation over 8-17 ps. The excimer state then decays in 6.9-12.8 ns, as measured by time-resolved fluorescence spectroscopy. The excimer lifetimes reach a maximum for a slip-stacked geometry in which the two PMI molecules are displaced along their long axes by one phenyl group (~4.3 Å). Additional displacement of the PMIs by a biphenyl spacer along the long axis prevents excimer formation. Symmetry-breaking charge transfer is not observed in any of the PMI dimers, and only a small triplet yield (<5%) is observed for the cofacial PMI dimers. These data provide structural insights for minimizing excimer trap states in organic devices based on PMI derivatives.
Collapse
Affiliation(s)
- Rebecca J Lindquist
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University , Evanston, Illinois 60208-3113, United States
| | | | | | | | | | | | | |
Collapse
|
16
|
Yang L, Yu Y, Zhang J, Song Y, Jiang L, Gao F, Dan Y. Study on the photophysical and electrochemical property and molecular simulation of broadly absorbing and emitting perylene diimide derivatives with large D–π–A structure. RSC Adv 2014. [DOI: 10.1039/c4ra07288j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
A simple synthetic route to obtain perylene diimide candidate materials with large conjugation, obvious ICT, broad light-absorption/emission, concentration-dependant ð–ð staking induced fluorescence and low-lying LUMO energy level.
Collapse
Affiliation(s)
- Long Yang
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| | - Yuyan Yu
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| | - Jin Zhang
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| | - Yuanqing Song
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| | - Long Jiang
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| | - Fang Gao
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044, China
| | - Yi Dan
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065, China
| |
Collapse
|