Deposition of silver, indium, and magnesium onto organic semiconductor layers: Reactivity, indiffusion and metal morphology

Salvan, Georgeta; Paez, B. A.; Silaghi, Simona D.; Zahn, Dietrich R. T.

doi:10.1016/j.mee.2005.07.029

Cited by 3 publications

(5 citation statements)

References 14 publications

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“…We have corroborated the results of Tsang et al, of the Zahn group, , and of reference . However, we could observe this only for a limited number of compounds (4,4′-bipyridine and 4-aminothiophenol).…”

Section: Discussionsupporting

confidence: 92%

“…In the field of organic light-emission diodes, SERS might be a useful tool to observe the organic films (PTCMA, DiMe-PTCDI) and their bonding to the inside metal face, as published by Zahn and his group. , IR reflectance at 15nm In vapor deposited on a 15-nm-thick PTCDA on a GaAs crystal face film shows the same asymmetric line shapes as observed in surface-enhanced IR transmission of discontinuous films, which may indicate that at 15 nm thickness, the In film still has open spots. Surprisingly, the Raman signals from PTCDA and DiMe-PTCDI internal modes were still observed for a metal (Ag, In) coverage of 43 nm, with higher intensity compared to the pure organic film.…”

Section: Introductionmentioning

confidence: 74%

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Is It Possible to Observe Surface-Enhanced Raman Scattering from Buried Molecules?

et al. 2009

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There are several literature reports on enhanced Raman spectra of molecules behind metal films more than 20 nm thick. We have reproduced these results for the molecule 4,4'-bipyridine (bipy). The most important issue of this article is, whether these molecules are really buried or have "sneaked out" to the top of the metal films. The dedicated experiments on samples in which bipy is supposedly at rough interfaces did not yield a clear result. Therefore, bipy was "buried" below a "smooth" Au film, and roughness is provided by gold nanoparticles on top of the smooth gold film. The access of bipy to the hot spots between the top Au layer and the Au nanoparticles was blocked by benzenedithiol. In this case, we could not confirm SERS from buried bipy

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 74%

Is It Possible to Observe Surface-Enhanced Raman Scattering from Buried Molecules?

et al. 2009

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“…PTCDA molecules and their aggregates have been intensively studied both experimentally [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] and theoretically. 6,20,36 Studies on different derivatives of PTCDI or its bimolecular complexes are also abundant in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…6,20,36 Studies on different derivatives of PTCDI or its bimolecular complexes are also abundant in the literature. 2,14,23,26,27,[37][38][39][40][41][42][43][44][45][46][47][48][49][50][51] Much less attention has been devoted to the binding interaction energy between PTCDI molecules, 13,15,16,44,[52][53][54] and, to the best of our knowledge, only the works of Fink and colleagues addressed systematically this issue. 53,54 The latter mentioned works focused on the packing and optical properties of PTCDI Scheme 1…”

Section: Introductionmentioning

confidence: 99%

Weakly bound PTCDI and PTCDA dimers studied by using MP2 and DFT methods with dispersion correction

Oltean

Mile

Vidrighin

et al. 2013

Phys. Chem. Chem. Phys.

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Potential energy curves along the inter-planar coordinates have been calculated for the dimers of two perylene derivatives (PTCDI and PTCDA) by using MP2 and dispersion corrected DFT (DFT-D) methods with B3LYP, B97 and PBE0 density functionals. The performance of dispersion-correcting potentials (DCPs) for describing intermolecular van der Waals interactions was also tested in conjunction with PBE0 and B971 functionals. Analytical potential energy curves were derived at different levels of theory by fitting the calculated data to modified Morse, Murrell-Sorbie, Buckingham and Lennard-Jones potentials. Potential energy surfaces for the two types of dimers were explored at the PBE0-DCP/6-31+G(d,p) level of theory in order to assess the effects of geometrical perturbations (displacements and/or rotations) on the stability of the dimers. Two minima were located for each perylene derivative, depending on the starting geometries of the dimers. Inter-monomer geometrical parameters of fully and partially optimized dimeric structures, as well as their relative stability, are discussed in comparison to available experimental data and other theoretical results on these or similar compounds.

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“…According to Figure b, two N 1s peaks at 400.5 and 398.9 eV emerged for the Mg anode soaked with rPDI. The peak located at 400.5 eV was attributed to the imide group of rPDI adsorbed on the Mg surface. − The peak located at 398.9 eV was attributed to the formation of ionic Mg–N bonds, indicating the strong interaction between Mg and adsorbed rPDI. − …”

mentioning

confidence: 99%

Non-passivating Anion Adsorption Enables Reversible Magnesium Redox in Simple Non-nucleophilic Electrolytes

et al. 2021

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Magnesium batteries suffer from low power density and poor cycle life due to severe Mg passivation. Using nucleophilic electrolytes is effective to stabilize the Mg anode, but it prohibits the use of organic and conversion cathodes due to chemical reactivity. Here, we report an effective non-passivating anion additive, the reduced perylene diimide–ethylene diamine (rPDI), to enable fast and reversible Mg deposition/dissolution in a simple non-nucleophilic electrolyte. The rPDI additive exhibits higher adsorption energy than the TFSI– salt on the Mg surface, preventing TFSI– decomposition and Mg anode passivation. Using 0.2 mM rPDI additives, we demonstrated a Mg–organic full cell achieving a high power density (2.0 mW cm–2) and a stable cycle life (>200 cycles). Our study provides a facile and effective strategy for non-nucleophilic electrolytes, enabling the combination of Mg anode with a wide variety of organic and conversion cathodes beyond intercalation chemistries.

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Deposition of silver, indium, and magnesium onto organic semiconductor layers: Reactivity, indiffusion and metal morphology

Cited by 3 publications

References 14 publications

Is It Possible to Observe Surface-Enhanced Raman Scattering from Buried Molecules?

Is It Possible to Observe Surface-Enhanced Raman Scattering from Buried Molecules?

Weakly bound PTCDI and PTCDA dimers studied by using MP2 and DFT methods with dispersion correction

Non-passivating Anion Adsorption Enables Reversible Magnesium Redox in Simple Non-nucleophilic Electrolytes

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