14 article(s) from Zahn, Dietrich R. T.
- Full Research Paper
- Published 17 Jan 2019
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Figure 1: Raman spectra of ink0 and ink1 NC films before FLA treatment.
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Figure 2: Raman spectra of ink0 and ink1 NC films before and after FLA at different power densities: (a) spec...
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Figure 3: Raman spectra of ink0 (I = 25 J/cm2) and ink1 (I = 35 J/cm2) NC films with the most pronounced deco...
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- Full Research Paper
- Published 05 Oct 2018
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Figure 1: Representative SEM images of a) and b) linear and c) and d) H-shaped nanoantenna arrays with differ...
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Figure 2: a) Typical IR transmission spectrum for the array of nanoantennas with a length of 1800 nm. The low...
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Figure 3: Optimized nanoantenna length L vs the transverse crossarm length LH for H-shaped nanoantennas with ...
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Figure 4: Distribution of the normalized LSPR electric field magnitude on top of the Si surface underlying th...
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Figure 5: IR transmission spectra of the array of a) nanoantennas and b) microantennas measured at different ...
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Figure 6: a) Evaluating the spectral behavior of the dipole radiation from a unit cell of the Si-backed array...
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Figure 7: SEM images of the nanoantenna edges for a) linear and b) H-shaped nanoantennas taken after depositi...
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Figure 8: IR transmission spectra of the linear nanoantenna arrays before nanocrystal (NC) deposition (black ...
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- Review
- Published 29 Aug 2017
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Scheme 1: Chemical structures of (metallo)porphyrins under review here.
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Figure 1: Surface topography determined by AFM as a function of thickness. Cu-TMPP (= CuTPP(OMe)4) (a) 35 nm,...
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Figure 2: Formation of molecular dendrites in a 117 nm thick Cu-TMPP (= CuTPP(OMe)4) sample at different regi...
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Figure 3: Transport in Cu-TMPP (= CuTPP(OMe)4) films and dendrites, (a–d) AFM topography characteristics. The...
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Figure 4: Extinction coefficient k for a) H2TMPP, b) CuTMPP and c) NiTMPP. The uniaxial anisotropic model res...
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Figure 5: Energy dispersion of the magneto-optical Voigt constant Q for a) H2TMPP, b) CuTMPP and c) NiTMPP. F...
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Figure 6: MCD (ηF) spectra in the Q-band region for a) H2TMPP, b) CuTMPP and c) NiTMPP and the modelling with...
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Figure 7: Results of STM measurements: (a,b) Formation of small islands at submonolayer coverage. Molecules o...
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Figure 8: Highly resolved filled (a) and empty molecular states (b) STM image of the square structure of H2TH...
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Figure 9: (a) Large scale STM image of submonolayer coverage showing molecular chains and ordered islands of H...
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Figure 10: (a–e) Manipulation of the electronic structure by applying a voltage pulse with the STM tip at the ...
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Figure 11: Left: Evolution of the XPS spectra of Br 3d for a molecular monolayer of CuTPP(Br)8 on Au(111) as a...
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Figure 12: Results of STM measurements: (a) Novel structure of the alternating molecular rows formed after ann...
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- Review
- Published 04 Aug 2017
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Figure 1: Molecular structure of (a) transition metal phthalocyanines, (b) 1,3,4,5,7,8-hexafluorotetracyanona...
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Figure 2: Evolution of the electronic-excitation spectra of MnPc upon potassium doping as determined using el...
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Figure 3: C 1s (panel (a)) and K 2p (panel (b)) excitation edges of MnPc and the three potassium-doped phases...
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Figure 4: Panel (a): valence band photoelectron spectroscopy results for undoped and three potassium-doped Mn...
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Figure 5: Comparison of valence band photoelectron spectroscopy (UPS) data to those from density functional b...
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Figure 6: Core-level photoelectron spectroscopy data in the energy region of the Mn 2p3/2 core level (adapted...
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Figure 7: Results of the DFT calculations for the MnPc/F4TCNQ dimer model systems: a) The SOMO of MnPc and th...
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Figure 8: Comparison of the electronic excitation spectra of MnPc, F4TCNQ and the charge-transfer compound Mn...
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Figure 9: (a) Comparison of the electronic excitation spectra of MnPc, K1MnPc and MnPc/F4TCNQ as measured usi...
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Figure 10: Core-level photoelectron spectroscopy data in the energy region of the Mn 2p3/2 core level for the ...
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Figure 11: Valence-band photoemission data from the MnPc/F6TCNNQ interface as a function of the F6TCNNQ top-la...
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Figure 12: N 1s excitation spectra as obtained using X-ray absorption spectroscopy (adapted from [127]). Correspond...
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Figure 13: Polarization dependent X-ray absorption data at the Co L3 edge for a (a) 3 nm and (b) 0.6 nm F16CoP...
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Figure 14: Co 2p3/2 core-level photoemission spectra of a (a) thick and (b) thin F16CoPc layer on top of MnPc....
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Figure 15: Results of the DFT calculations for the MnPc/F16CoPc model systems: a) The hybrid state is formed b...
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- Letter
- Published 21 Jul 2017
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Figure 1: Schematic diagram of the experimental setup: (a) Commercial bottom-contact OFET substrates; (b) pla...
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Figure 2: Light-switching behaviour of TIPS-pentacene-based (a) organic field-effect transistor (OFET) and (b...
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Figure 3: (a) Light switching of an OFET prepared by drop-coating of TIPS-pentacene diluted in water. The ins...
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- Full Research Paper
- Published 05 Jul 2017
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Scheme 1: Structure of the dinuclear complexes [M2L(μ-L’)](ClO4) and representation of the structure of compl...
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Figure 1: Ambidentate ligands with soft (–SH, –PPh2) and hard (–CO2H) donor functions.
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Scheme 2: Synthesis of the complexes 6–8 (the doubly deprotonated macrocycle H2L is represented as an ellipse...
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Figure 2: ORTEP (left) and van der Waals representations (right) of the molecular structure of the [Ni2L(O2C(...
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Figure 3: Ball and stick (left) and van der Waals representations (right) of the molecular structure of the [...
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Figure 4: Temperature dependence of the effective magnetic moment μeff (per dinuclear complex) for 7 (open tr...
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Figure 5: AFM topography characteristics considering a 1 × 1 μm2 area, after deposition of [Ni2L(HL5)](ClO4) (...
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Figure 6: Proposed binding mode of complex 7 to gold (left: van der Waals representation of the [Ni2L(L5)]+ c...
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- Full Research Paper
- Published 03 Jul 2017
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Figure 1: (a) STM topographic images (Ubias = −1.0 V, I = 1.08 nA) and corresponding low-energy electron diff...
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Figure 2: Raman spectra of the various structures obtained upon Si deposition at room temperature RT, 220, 25...
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Figure 3: (a) Raman spectra recorded on samples after Si deposition at room temperature with coverages of 1 M...
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Figure 4: Fitted Raman spectra of silicene-related structures: dominant (3times3)/(4×4) (epitaxial silicene) ...
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Figure 5: (a) LEED pattern of the sample prepared at 280 °C. The integer-order diffraction spots of Ag(111) a...
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Figure 6: Reduced phase diagram of Si structures that can be grown on the Ag(111) surface at various depositi...
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- Full Research Paper
- Published 03 May 2017
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Figure 1: (a) Representative SEM image of Au nanoantenna array; nanoantenna length 900 nm. (b) Detailed image...
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Figure 2: (a) Raman and SERS spectra of a cobalt phthalocyanine (CoPc) film with thickness of 3 nm deposited ...
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Figure 3: IR transmission spectrum of a 10 nm thick CoPc film deposited on a Si substrate normalized to the I...
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Figure 4: (a) IR spectrum of bare nanoantennas (curve 1) and IR spectra of nanoantennas with deposited 3 nm a...
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Figure 5: (a) The cortisol chemical structure and numeration of atoms in the cortisol molecule. (b) IR spectr...
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- Full Research Paper
- Published 24 Jan 2017
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Figure 1: (a) Schematic diagram of the SERS active spot synthesis, followed by MG adsorption to the nanoparti...
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Figure 2: (a) Selected SERS spectra in the time range from 100 to 510 seconds, considered from the start of t...
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Figure 3: Maximum intensity of the 1178 and 1617 cm−1 MG marker bands recorded on nine different silver spots....
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Figure 4: On-line SERS monitoring showing selected spectra recorded during the in situ synthesis of the gold ...
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Figure 5: Schematic representation of the microfluidic SERS setup. The inset shows a picture of the glass cap...
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- Full Research Paper
- Published 26 Oct 2016
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Figure 1: Typical SEM images of the fabricated Au nanoantennas for the mid-IR spectral region. Nanoantenna le...
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Figure 2: Typical IR transmission spectra of linear antennas with different lengths.
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Figure 3: LSPR energy in nanoantenna arrays fabricated on bare Si surfaces as a function of the nanoantenna l...
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Figure 4: LSPR frequencies of nanoantenna arrays versus the SiO2 thickness. Six structures with different ant...
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Figure 5: a) Structure geometry definition for the nanoantenna array (the unit cell is shown). b) Example of ...
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Figure 6: Experimental (a,c) and calculated (b,d) IR transmission spectra of nanoantenna array with the lengt...
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Figure 7: Splitting the LSPR modes due to plasmon–phonon interaction for nanoantennas with the lengths of 140...
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- Full Research Paper
- Published 14 Dec 2015
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Figure 1: A sketch representing (a) a regular Au nanocluster array and (b) a Au dimer array.
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Figure 2: (a) SEM image of a single monolayer of CdSe NCs deposited on Si (bottom) and Au nanocluster arrays ...
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Figure 3: (a) SERS spectra of a single monolayer of CdSe NCs deposited on the nanocluster arrays with decreas...
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Figure 4: (a) SEM image of submonolayer coverage of CdSe NCs deposited on a Au dimer array. (b) An enlarged f...
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Figure 5: (a) The representative reflection spectra of Au dimer arrays with decreasing gap size (Δ = 15 cm, 1...
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Figure 6: SERS spectra of a submonolayer of CdSe NCs deposited on the dimer array with a gap size of about 10...
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Figure 7: (a) SERS spectra of a submonolayer of CdSe NCs deposited on dimer arrays with increasing gap size m...
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- Full Research Paper
- Published 17 Mar 2015
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Figure 1: A typical Raman spectrum of the dense ensemble of CuS NCs (about 5–6 MLs) on a Au substrate excited...
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Figure 2: Raman spectra of CuS NCs (of about 1 ML coverage) fabricated on a Si substrate with a SiO2 layer of...
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Figure 3: The dependence of the IERS enhancement factor of phonon modes in CuS NCs on the thickness of the SiO...
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Figure 4: a) SEM image and b) micro-Raman spectra of CuS NCs deposited on Si (lower part) and Au nanocluster ...
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Figure 5: Raman spectra of CuS NCs deposited on bare Si, 75 nm SiO2 layer on Si, and on Au arrays fabricated ...
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Figure 6: a) SEM image of CuS NCs with an ultra-low areal density deposited on Au arrays on SiO2 layer and b)...
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- Full Research Paper
- Published 11 Nov 2014
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Figure 1: TbPc2 molecule (left). Investigated layer stack: TbPc2 thin films on cobalt grown on SiO2/Si(111).
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Figure 2: Dielectric function of a TbPc2 film on cobalt. The blue lines and the red lines represent the real ...
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Figure 3: Definition of the molecular tilt angle (top). Average tilt angle of the TbPc2 molecules on cobalt (...
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Figure 4: AFM topography characteristics of TbPc2 thin films. Line scan profiles and AFM surface images for T...
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Figure 5: AFM statistical analysis of TbPc2 thin films. (a) Average grain diameter and height as a function o...
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Figure 6: cs-AFM electrical measurements. (a) Electrical setup employed for local electrical measurements via...
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Figure 7: Transport mechanism for TbPc2 thin films. Red and blue solid lines indicate the average of 20 local...
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