| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Costa, Jcs
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Confined Silver Nanoparticles in Ionic Liquid Filmscitations
- 2022The impact of the cation alkyl chain length on the wettability of alkylimidazolium-based ionic liquids at the nanoscalecitations
- 2022Solid-Liquid-Gas Phase Equilibria for Small Phenylene-Thiophene Co-Oligomerscitations
- 2022The effect of oxidation state and tert-butyl substituents on the thermal behavior and thin-film morphology of cobalt-complexes (FK 102 and FK 209)citations
- 2021On the Aromatic Stabilization of Fused Polycyclic Aromatic Hydrocarbonscitations
- 2020Morphology, Structure, and Dynamics of Pentacene Thin Films and Their Nanocomposites with [C(2)C(1)im][NTf2] and [C(2)C(1)im][OTF] Ionic Liquidscitations
- 2018High purity and crystalline thin films of methylammonium lead iodide perovskites by a vapor deposition approachcitations
- 2018Thin film deposition of organic hole transporting materials: optical, thermodynamic and morphological properties of naphthyl-substituted benzidinescitations
- 2018Nucleation and growth of microdroplets of ionic liquids deposited by physical vapor method onto different surfacescitations
- 2017On the Deposition of Lead Halide Perovskite Precursors by Physical Vapor Methodcitations
- 2016Morphology of Imidazolium-Based Ionic Liquids as Deposited by Vapor Deposition: Micro-/Nanodroplets and Thin Filmscitations
- 2015Description and Test of a New Multilayer Thin Film Vapor Deposition Apparatus for Organic Semiconductor Materialscitations
Places of action
| Organizations | Location | People |
|---|
article
Thin film deposition of organic hole transporting materials: optical, thermodynamic and morphological properties of naphthyl-substituted benzidines
Abstract
Aromatic diamines and naphthyl-substituted benzidines (BDB, TPB, TPD, NPB, alpha-NPD, beta-NPB, TNB) are listed as one of the best series available of hole transport materials used as thin films in organic electronics (OLEDs, OPVs). High-quality, homogeneous and compact thin films (ae 300 nm of thickness) of this compound series were prepared by a physical vapor deposition procedure. SEM and XRD characterizations evidence the amorphous nature of the thin films of NPB, alpha-NPD, beta-NPB and TNB, prepared onto ITO and gold surfaces by a controlling mass flow rate. The semiconducting behavior of this class of pi-conjugated materials was investigated through UV-vis characterization by the determination of optical band gaps (ae 3 eV). According to DSC, SEM and XRD analyses, the materials evidenced an amorphous structure and high thermal stability in the glassy state. Analyzing the melting properties, the ratio T (g)/T (m) = 2/3 was observed for TPB and NPB, which have a higher molecular symmetry, while T (g)/T (m) = 3/4 was observed for the asymmetric beta-NPB and TPD. The first accurate measurements of the vapor pressures and thermodynamic properties of phase transition were obtained for the most common hole transport material (NPB) in OLEDs. The relative stability of the crystalline phases of the diamine derivatives (BDB, TPB, NPB) was found to be enthalpically driven, increasing linearly with the molar volume of the compound.