Graphene-modulated photo-absorption in adsorbed azobenzene monolayers
Literature Information
The impact of graphene on the photo-absorption properties of trans- and cis-azobenzene monolayers is studied in the framework of density-functional theory and many-body perturbation theory. We find that, despite the weak hybridization between the electronic bands of graphene and those of the azobenzene monolayers, graphene remarkably modulates the absorption spectra of the adsorbates. The excitation energies are affected via two counteracting mechanisms: substrate polarization reduces the band-gap of azobenzene, and enhanced dielectric screening weakens the attractive interaction between electrons and holes. The competition between these two effects gives rise to an overall blueshift of peaks stemming from intramolecular excitations, and a redshift of peaks from intermolecular ones. Even more interesting is that excitations corresponding to intermolecular electron–hole pairs, which are dark in the isolated monolayers, are activated by the graphene substrate. Our results demonstrate that the photoisomerization process of weakly adsorbed azobenzene undergoes notable changes on a carbon-based substrate.
Related Literature
Understanding and controlling the glass transition of HTPB oligomers
Eleftheria Dossi, Jacob Earnshaw, Laurence Ellison, Gabriella Rabello dos Santos, Hamish Cavaye, Douglas J. Cleaver
DOI: 10.1039/D1PY00233C
The synthesis of thermoresponsive POSS-based eight-arm star poly(N-isopropylacrylamide): A comparison between Z-RAFT and R-RAFT strategies
Bo Pang, Rui Liu, Guang Han, Wei Wang
DOI: 10.1039/D1PY00087J
Amphiphilic poly(ether urethanes) carrying associative terpyridine side groups with controlled spacing
Katharina Breul, Sebastian Seiffert
DOI: 10.1039/D1PY00121C
Organic–inorganic nanohybrids based on an AIE luminogen-functional polymer and CdTe/ZnS QDs: morphologies, optical properties, and applications
Bingfeng Shi, Jianhua Lü, Ying Liu, Yang Xiao, Changli Lü
DOI: 10.1039/D1PY00308A
Synthesis and properties of helically-folded poly(arylenediethynylene)s
Michihisa Toya
DOI: 10.1039/D1PY00144B
The synergistic effect of rigid and flexible substituents on insertion polymerization with α-diimine nickel and palladium catalysts
Zijuan Hai, Zhou Lu, Shuaikang Li, Zhong-Yan Cao, Shengyu Dai
DOI: 10.1039/D1PY00812A
Enhancing and toughening plant oil-based polymeric materials through synergetic supramolecular and covalent interactions by introducing nucleobase-functionalized celluloses
Jianjun Li, Jiaqi Chen, Jiang Wu, Handan Lei, Yuting Tian
DOI: 10.1039/D1PY00493J
Supramolecular organogel formation behaviors of beads-on-string shaped poly(azomethine)s dependent on POSS structures in the main chains
Ayano Ishida, Shunichi Fujii, Akifumi Sumida, Tasuku Kamitani, Saori Minami, Kenji Urayama, Hiroaki Imoto
DOI: 10.1039/D1PY00346A
You might also like
What precautions should be taken when handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3)?
When handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3), it ...
What precautions should be taken when handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9)?
When handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9), it...
How should waste containing 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 4-methylbenzenesulfonate (CAS: 62921-74-8) be handled?
Waste containing this compound (CAS: 62921-74-8) should be handled according to ...
How should waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate be handled?
Waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate should be collected i...
How is 5-({4-[(2S,4R)-4-Hydroxy-2-methyltetrahydro-2H-pyran-4-yl]-2-thienyl}sulfanyl)-1-methyl-1,3-dihydro-2H-indol-2-one (CAS: 166882-70-8) typically synthesized?
This compound can be synthesized using a multi-step process involving the conjug...
Are there alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid (CAS: 7312-27-8) in synthesis?
There are several alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid in syn...
How should Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84-9) be stored?
Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84...
How should waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) be handled?
Waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) should be coll...
How is Methyl 5-iodo-2-methylbenzoate (CAS: 103440-54-6) typically synthesized?
Methyl 5-iodo-2-methylbenzoate can be synthesized through the iodination of meth...
How is 5-Chloro[1,2,4]triazolo[1,5-a]pyridine (CAS: 1427399-34-5) typically synthesized?
5-Chloro[1,2,4]triazolo[1,5-a]pyridine is commonly synthesized via the condensat...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














