Strukturisomere von Kupfer(I)iodid · Pyridin und ihre Lumineszenzeigenschaften. Darstellung und Kristallstruktur einer neuen Modifikation von Cul · NC5H5 / Structural Isomers of Copper(I) Iodide Pyridine and their Luminescence Properties Synthesis and Crystal Structure of a New Modification of Cul · NC5H5

Eitel, Erika; Oelkrug, D.; Hiller, W.; Strähle, Joachim

doi:10.1515/znb-1980-1015

Cited by 58 publications

(6 citation statements)

References 9 publications

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“…The structure consists of Cu 4 tetrahedra with iodides capping all four faces and the mCPy pyridyl ligands at the apexes (Figure ). This structure is similar to that of [CuI(py)] 4 …”

supporting

confidence: 67%

“…Among luminescent Cu(I) complexes, those based on CuI are well-known for their structural diversity, rich photophysical behavior, and high luminance efficiency . A wide range of structure motifs have been prepared by combining CuI and pyridine-based ligands in different ratios . Excited states in the resulting complexes have been proposed to be halide-to-ligand charge transfer (XLCT), metal-to-ligand charge transfer (MLCT), and/or halide-to-metal charge transfer (XMCT) states on the basis of experimental and computational studies. a, Generally, CuI-based complexes, especially with pyridine-based ligands, are highly emissive at room temperature (rt) regardless of the structure and nature of the excited state.…”

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confidence: 99%

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A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

et al. 2011

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We demonstrate a new approach to utilize copper(I) iodide coordination complexes as emissive layers in organic light-emitting diodes (OLEDs), by in situ codeposition of copper(I) iodide and 3,5-bis(carbazol-9-yl)pyridine (mCPy). With a simple three-layer device structure, pure green electroluminescence at 530 nm from a copper(I) complex was observed. Maximum luminance and external quantum efficiency (EQE) of 9700 cd/m2 and 4.4% have been achieved, respectively. The luminescent species has been identified as [CuI(mCPy)2]2 based on photophysical studies of model complexes and X-ray absorption spectroscopy (XAS).

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“…The structure consists of Cu 4 tetrahedra with iodides capping all four faces and the mCPy pyridyl ligands at the apexes (Figure ). This structure is similar to that of [CuI(py)] 4 …”

supporting

confidence: 67%

mentioning

confidence: 99%

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

et al. 2011

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“…1D-CuI(py) was synthesized according to a previous report with modification. A CuI solution (0.190 g; 1 mmol) prepared in saturated KI solution (2 mL) was placed at the top of a three-layer solution, followed by a layer of acetonitrile (2 mL) and a third layer of py (0.079 g; 1 mmol) in acetone (2 mL).…”

Section: Experimental Sectionmentioning

confidence: 99%

Systematic Approach in Designing Rare-Earth-Free Hybrid Semiconductor Phosphors for General Lighting Applications

et al. 2014

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As one of the most rapidly evolving branches of solid-state lighting technologies, light emitting diodes (LEDs) are gradually replacing conventional lighting sources due to their advantages in energy saving and environmental protection. At the present time, commercially available white light emitting diodes (WLEDs) are predominantly phosphor based (e.g., a yellow-emitting phosphor, such as cerium-doped yttrium aluminum garnet or (YAG):Ce(3+), coupled with a blue-emitting InGaN/GaN diode), which rely heavily on rare-earth (RE) metals. To avoid potential supply risks of these elements, we have developed an inorganic-organic hybrid phosphor family based on I-VII binary semiconductors. The hybrid phosphor materials are totally free of rare-earth metals. They can be synthesized by a simple, low-cost solution process and are easily scalable. Their band gap and emission energy, intensity, and color can be systematically tuned by incorporating ligands with suitable electronic properties. High quantum efficiency is achieved for some of these compounds. Such features make this group of materials promising candidates as alternative phosphors for use in general lighting devices.

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“…[9] In parallel, the emission properties were also investigated by several groups, [10][11][12][13][14][15][16] including Ford and co-workers. [17][18][19][20][21][22][23][24][25][26][27] The conclusion of these multiple works is that the emission can come from either a charge transfer from the halide-Cu metals to the ligands (X/MLCT) or can arise from the d manifolds to an empty p orbital of the Cu 4 center [cluster-centered (CC)].…”

Section: Introductionmentioning

confidence: 99%

Luminescent Coordination Polymers Built Upon Cu₄X₄ (X=Br,I) Clusters and Mono‐ and Dithioethers

Harvey

Knorr

2010

Macromol. Rapid Commun.

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This paper focuses on the syntheses, structures, and luminescence properties of 1D, 2D, and 3D coordination polymers built upon the tetranuclear Cu(4) X(4) clusters and mono- and dithioether assembling ligands. A review of the relevant literature is presented along with our own results stressing on the salient features of the interactions between the CuI salt as the starting material and the thioethers. Among the features, the solvato- (lost or gain of a monothioether or solvent molecule) and luminescence thermochromism (temperature dependence of the emission) of the solids, and the enhanced versatility of the CuI salt to form clusters of different nuclearity (Cu(2) I(2) , Cu(4) I(4) , Cu(6) I(6) ) and structures (closed cubane, partially open "flower-basket-like" cubane, and open cubane) upon the reaction conditions and ligands, are described. The steady state and time-resolved solid-state emission and excitation spectra (at 298 and 77 K) as well as the emission lifetimes are examined. Simple and apparently "innocent" modification may have a drastic effect on the polymer network and cluster structures, but this paper finds no obvious trend for the moment except for the ligand rigidity. The rhombic Cu(2) I(2) and closed-cubane Cu(4) I(4) clusters are the most encountered motifs whereas the open-flower-basket Cu(4) I(4) cubane and the hexagonal Cu(6) I(6) clusters are scarce.

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Cited by 58 publications

References 9 publications

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

Systematic Approach in Designing Rare-Earth-Free Hybrid Semiconductor Phosphors for General Lighting Applications

Luminescent Coordination Polymers Built Upon Cu₄X₄ (X=Br,I) Clusters and Mono‐ and Dithioethers

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Cited by 58 publications

References 9 publications

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

Systematic Approach in Designing Rare-Earth-Free Hybrid Semiconductor Phosphors for General Lighting Applications

Luminescent Coordination Polymers Built Upon Cu4X4 (X=Br,I) Clusters and Mono‐ and Dithioethers

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Luminescent Coordination Polymers Built Upon Cu₄X₄ (X=Br,I) Clusters and Mono‐ and Dithioethers