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m-MTDATA on Au(111) : Spectroscopic Evidence of Molecule-Substrate Interactions

Zhang, Teng (author)
Beijing Inst Technol, Sch Integrated Circuits & Elect, MIIT Key Lab Low Dimens Quantum Struct & Devices, Beijing 100081, Peoples R China.
Grazioli, Cesare (author)
Sincrotrone Trieste, IOM CNR, Lab TASC, I-34149 Trieste, Italy.
Guarnaccio, Ambra (author)
Ist Struttura, ISM, CNR, I-85050 Tito, Pz, Italy.
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Brumboiu, Iulia Emilia (author)
Pohang Univ Sci & Technol POSTECH, Dept Chem, Pohang 37673, South Korea.
Lanzilotto, Valeria (author)
Sapienza Univ Roma, Dept Chem, I-00185 Rome, Italy.
Johansson, Fredrik (author)
Uppsala universitet,KTH,Tillämpad fysik,Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden.;KTH Royal Inst Technol, Dept Chem, Div Appl Phys Chem, S-10044 Stockholm, Sweden.;Sorbonne Univ, Inst Nanosci Paris, UMR CNRS 7588, F-75005 Paris, France.,Institutionen för fysik och astronomi
Beranova, Klara (author)
Elettra Sincrotrone Trieste SCPA, I-34149 Trieste, Italy.;Czech Acad Sci, FZU Inst Phys, Prague 18221, Czech Republic.
Coreno, Marcello (author)
Ist Struttura, ISM, CNR, I-85050 Tito, Pz, Italy.
de Simone, Monica (author)
Sincrotrone Trieste, IOM CNR, Lab TASC, I-34149 Trieste, Italy.
Brena, Barbara (author)
Uppsala universitet,Institutionen för fysik och astronomi
Puglia, Carla (author)
Uppsala universitet,Energimaterialens fysik
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Beijing Inst Technol, Sch Integrated Circuits & Elect, MIIT Key Lab Low Dimens Quantum Struct & Devices, Beijing 100081, Peoples R China Sincrotrone Trieste, IOM CNR, Lab TASC, I-34149 Trieste, Italy. (creator_code:org_t)
2022-02-08
2022
English.
In: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 126:6, s. 3202-3210
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The starburst pi-conjugated molecule based on triphenylamine (TPA) building blocks, 4,4',4 ''-tris(N-3-ethylphenyl-N-phenylamino)triphenylamine (C57H48N4, m-MTDATA), is widely used in optoelectronic devices due to its electron-donating properties. The electronic structure of m-MTDATA adsorbed on an Au(111) surface was investigated by means of photoelectron spectroscopy (PES) and near edge X-ray absorption fine structure (NEXAFS) spectroscopy. The results were further compared to gas-hase measurements and DFT calculations. Our results clearly indicate a significant molecule-substrate interaction that induces considerable modifications on the electronic structure of the adsorbate compared to the isolated molecule. The energy level alignment analysis shows that the HOMO-LUMO gap is filled by new interface states.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
NATURVETENSKAP  -- Kemi -- Teoretisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)

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