Characterization of facial and meridional Alq3 thin films fabricated from physical vapor transport at high substrate temperatures

Hung, Shang Yu; Kao, Ruei Lin; Lin, Ku Yen; Yang, Chun; Lin, Kuen Song; Chao, Yu Chiang; Wang, Jyh Shyang; Shen, Ji Lin; Chiu, Kuan−Cheng

doi:10.1016/j.matchemphys.2015.01.051

Cited by 18 publications

(2 citation statements)

References 31 publications

(39 reference statements)

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“…We also note that from thin-film studies various polycrystalline phases of Alq 3 have been identified [91]. Upon deposition, a transformation could occur between the two isomers, depending on the substrate temperature [92]. A significant dependence of r,opt (from about 2.7 to 3.3) on the deposition temperature and the relaxation time after deposition has been found [13].…”

Section: Comparison With Experimentsmentioning

confidence: 61%

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Vries

Coehoorn

2020

Phys. Rev. Materials

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Section: Comparison With Experimentsmentioning

confidence: 61%

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Vries

Coehoorn

2020

Phys. Rev. Materials

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“…Metal fac‐Alq3 (Al(C 9 H 6 NO) 3 ) has a structure of central atom Al attached with three quinoline ligands in octahedral geometry. [ 17 ] The isomer form of fac‐Alq3 has a C3 symmetry where these three ligands are equivalent. [ 12 ] We attached this molecule in position 5 of each ligand with Mg in obtaining 5Mg‐Alq3((5‐Magnesium‐8‐hydroxyquinoline) aluminium), and in position 7 of each ligand with (M = Mg, Cl, P, S) in obtaining the molecule 7M‐Alq3; ((7‐Magnesium‐8‐hydroxyquinoline) aluminum), ((7‐chloro‐8‐hydroxyquinoline) aluminum), (7‐phosphoro‐8‐hydroxyquinoline) aluminum) and (7‐sulfo‐8‐hydroxyquinoline) aluminum)).…”

Section: Computations Detailsmentioning

confidence: 99%

Electronic and optical properties of facial tris(8‐hydroxyquinoline) aluminum derivatives

Abdelfettah,

Abderrachid

2023

Vietnam Journal of Chemistry

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In this study, we substitute facial Alq3 with (‐Mg) in positions 7 and 5 as electron donating group (EDG) and (‐Cl), (‐P) and (‐S) in position 7 as electron withdrawing groups (EWD). The ground and the first excited states geometries of facial Alq3 and their derivatives are optimized using B3lyp/6‐31G (d) methods. To analyse the electric transitions in these materials, the frontier molecular orbitals (FMOs) are calculated. It was found that the highest occupied molecular orbital (HOMO) is mainly situated on the phenoxide ring, while the lowest unoccupied molecular orbital (LUMO) is situated on the pyridyl ring, the atom C9 of phenoxide or in EWD atom. The dipole moment is calculated and analysed. The absorption and emission spectra are calculated with the TD‐DFT/6‐31G (d) method. It is seen that the electron donating or electron withdrawing groups in 7 positions caused a red‐shift in the absorption and emission spectra; what means that these substitutes have a significant effect on fac‐Alq3.

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Tetranuclear Lanthanide Complexes Supported by Hydroxyquinoline‐Calix[4]arene‐Ligands: Synthesis, Structure, and Magnetic Properties of [Ln₄(H₃L)₂(µ‐OH)₂(NO₃)₄] (Ln = Tb, Dy, Yb) and [Dy₂(H₄L)₂(NO₃)](NO₃)

et al. 2020

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The coordination behavior of the calixarene‐based N4O4 donor ligand H6L bearing two pendant 8‐hydroxyquinoline‐2‐hydrazone arms towards the lanthanide ions Tb3+, Dy3+, and Yb3+ has been investigated. H6L was found to support tetra‐ and dinuclear mixed‐ligand complexes with the pendant hydrazone units in a deprotonated enolate and/or a neutral amide form. The direct reaction of H6L with Ln(NO3)3(H2O)6 and NEt3 in a 1:1:2 molar ratio leads to tetranuclear [Ln4(H3L)2(µ‐OH)2(η2‐NO3)4] complexes {Ln = Tb (1), Dy (2), Yb (3)} containing a rectangular arrangement of four eight‐coordinate Ln3+ ions bridged by two hydroxido‐ and four quinolinolato‐O atoms as established by X‐ray crystallography. Degradation of 2 occurs upon addition of further equiv. of H6L to give dinuclear [Dy2(H4L)(NO3)2(MeCN)2]NO3 (4) with eight‐ and ten‐coordinated Dy3+ ions. ESI‐MS studies reveal that such dinuclear species exist also in the solution state. The results of variable temperature direct and alternating current magnetic susceptibility measurements for 1–4 and high frequency EPR study on 4 are also reported.

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Characterization of facial and meridional Alq3 thin films fabricated from physical vapor transport at high substrate temperatures

Cited by 18 publications

References 31 publications

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Electronic and optical properties of facial tris(8‐hydroxyquinoline) aluminum derivatives

Tetranuclear Lanthanide Complexes Supported by Hydroxyquinoline‐Calix[4]arene‐Ligands: Synthesis, Structure, and Magnetic Properties of [Ln₄(H₃L)₂(µ‐OH)₂(NO₃)₄] (Ln = Tb, Dy, Yb) and [Dy₂(H₄L)₂(NO₃)](NO₃)

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Characterization of facial and meridional Alq3 thin films fabricated from physical vapor transport at high substrate temperatures

Cited by 18 publications

References 31 publications

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Vibrational mode contribution to the dielectric permittivity of disordered small-molecule organic semiconductors

Electronic and optical properties of facial tris(8‐hydroxyquinoline) aluminum derivatives

Tetranuclear Lanthanide Complexes Supported by Hydroxyquinoline‐Calix[4]arene‐Ligands: Synthesis, Structure, and Magnetic Properties of [Ln4(H3L)2(µ‐OH)2(NO3)4] (Ln = Tb, Dy, Yb) and [Dy2(H4L)2(NO3)](NO3)

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Tetranuclear Lanthanide Complexes Supported by Hydroxyquinoline‐Calix[4]arene‐Ligands: Synthesis, Structure, and Magnetic Properties of [Ln₄(H₃L)₂(µ‐OH)₂(NO₃)₄] (Ln = Tb, Dy, Yb) and [Dy₂(H₄L)₂(NO₃)](NO₃)