0000000000264074

AUTHOR

Ifor D. W. Samuel

showing 20 related works from this author

Green phosphorescence and electroluminescence of sulfur pentafluoride-functionalized cationic iridium(III) complexes

2015

EZ-C acknowledges the University of St Andrews for financial support. We report four cationic iridium(III) complexes [Ir(C^N)2(dtBubpy)](PF6) that have sulfurpentafluoride-modified 1-phenylpyrazole and 2-phenylpyridine cyclometalating (C^N) ligands (dtBubpy = 4,4'-di-tert-butyl-2,2'-bipyridyl). Three of the complexes were characterized by single-crystal X-ray structure analysis. In cyclic voltammetry, the complexes undergo reversible oxidation of iridium(III) and irreversible reduction of the SF5 group. They emit bright green phosphorescence in acetonitrile solution and in thin films at room temperature, with emission maxima between 482–519 nm and photoluminescence quantum yields of up to 7…

Photoluminescencechemistry.chemical_elementChemistry Techniques SyntheticCrystallography X-RayIridiumLigandsPhotochemistryInorganic ChemistryFluorideschemistry.chemical_compoundOrganometallic CompoundsQDIridiumPhysical and Theoretical ChemistryAcetonitrileTrifluoromethylMolecular StructureSulfur CompoundsCationic polymerizationDASElectrochemical TechniquesEquipment DesignQD ChemistrySulfurchemistryLuminescent MeasurementsCyclic voltammetryPhosphorescence
researchProduct

Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(iii) complexes bearing bisphosphine ligands

2016

EZ-C acknowledges the University of St Andrews for financial support. We thank Johnson Matthey and Umicore AG for the gift of materials and Cihang Yu for the preparation of isopropxantphos. We thank Dr. Nail Shaveleev for the synthesis of NMS25. IDWS and AKB acknowledge support from EPSRC (EP/J01771X). This work has been supported by the Spanish Ministry of Economy and Competitiveness (MINECO) MAT2014-55200. Herein we present a structure-property relationship study of thirteen cationic iridium (III) complexes of the form of [Ir(C^N)2(P^P)]PF6 in both solution and the solid state through systematic evaluation of six bisphosphine (P^P) ligands (xantphos, dpephos, dppe, Dppe, nixantphos and is…

PhotoluminescenceXantphosLigandNDASCationic polymerizationchemistry.chemical_element02 engineering and technologyBite angleQD Chemistry010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistryElectrochemistry01 natural sciences0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundchemistryQDIridium0210 nano-technologyLuminescenceInorganic Chemistry Frontiers
researchProduct

An Investigation of the Energy Levels within a Common Perovskite Solar Cell Device and a Comparison of DC/AC Surface Photovoltage Spectroscopy Kelvin…

2017

We present a study of the energy levels in a FTO/TiO2/CH3NH3PbI3/Spiro solar cell device. The measurements are performed using a novel ambient pressure photoemission (APS) technique alongside Contact Potential Difference data from a Kelvin Probe. The Perovskite Solar Cell energy band diagram is demonstrated for the device in dark conditions and under illumination from a 150W Quartz Tungsten Halogen lamp. This approach provides useful information on the interaction between the different materials in this solar cell device. Additionally, non-destructive macroscopic DC and AC Surface Photovoltage Spectroscopy (SPS) studies are demonstrated of different MAPBI3 device structures to give an indic…

Kelvin probe force microscopeMaterials scienceBand gapMechanical EngineeringSurface photovoltageAnalytical chemistryPerovskite solar cell02 engineering and technologyHybrid solar cell010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences0104 chemical scienceslaw.inventionMechanics of MaterialslawSolar cellBand diagramGeneral Materials Science0210 nano-technologyVolta potentialMRS Advances
researchProduct

Light-emitting electrochemical cells and solution-processed organic light-emitting diodes using small molecule organic thermally activated delayed fl…

2015

EZ-C thanks the University of St Andrews for support. The authors are grateful to the EPSRC for financial support (grants EP/J01771X and EP/J00916). IDWS is a Royal Society Wolfson Research Merit Award Holder. Two novel charged organic thermally activated delayed fluorescence (TADF) emitters, 1 and 2, have been synthesized. Their TADF behavior is well-supported by the multiexponential decay of their emission (nanosecond and microsecond components) and the oxygen dependence of the photoluminescence quantum yields. Spin-coated electroluminescent devices have been fabricated to make light-emitting electrochemical cells (LEECs) and organic light-emitting diodes (OLEDs). The first example of a n…

NDASQDQD ChemistryBDC
researchProduct

CCDC 1423252: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal System(bis(2-(Diphenylphosphino)phenyl) ether)-bis(2-(pyridin-2-yl)phenyl)-iridium hexafluorophosphate dichloromethane solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1423251: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters((99-Dimethyl-9H-xanthene-45-diyl)bis(diphenylphosphine))-bis(2-(pyridin-2-yl)phenyl)-iridium hexafluorophosphate dichloromethane solvate hemihydrateExperimental 3D Coordinates
researchProduct

CCDC 1423253: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal SystemCrystal Structure(Ethene-12-diylbis(diphenylphosphine))-bis(2-(pyridin-2-yl)phenyl)-iridium hexafluorophosphate dichloromethane solvateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1053872: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

(44'-di-t-butyl-22'-bipyridine)-bis(4-(pentafluorosulfanyl)-2-(1H-pyrazol-1-yl)phenyl)-iridium(iii) hexafluorophosphate dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1053870: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(44'-di-t-butyl-22'-bipyridine)-bis(5-(pentafluorosulfanyl)-2-(pyridin-2-yl)phenyl)-iridium(iii) hexafluorophosphateExperimental 3D Coordinates
researchProduct

CCDC 1423259: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographybis(35-difluoro-2-(4-mesitylpyridin-2-yl)phenyl)-(ethene-12-diylbis(diphenylphosphine))-iridium hexafluorophosphate dichloromethane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1490429: Experimental Crystal Structure Determination

2016

Related Article: Amlan K. Pal, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortı́, Ifor D. W. Samuel, Henk J. Bolink, and Eli Zysman-Colman|2016|Inorg.Chem.|55|10361|doi:10.1021/acs.inorgchem.6b01602

Space GroupCrystallographyCrystal SystemCrystal Structure(44'-di-t-butyl-22'-bipyridine)-bis(2-(pyridin-2-yl)-5-(trifluoromethoxy)phenyl)-iridium hexafluorophosphate diethyl ether solvateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1423255: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographybis(2-(4-Mesitylpyridyl)phenyl-CN)-((99-dimethyl-9H-xanthene-45-diyl)bis(diphenylphosphine))-iridium hexafluorophosphate dichloromethane diethyl ether solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1423254: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

(46-bis(Diphenylphosphino)-10H-phenoxazine)-bis(2-(pyridin-2-yl)phenyl)-iridium hexafluorophosphate dichloromethane solvate hemihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1490428: Experimental Crystal Structure Determination

2016

Related Article: Amlan K. Pal, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortı́, Ifor D. W. Samuel, Henk J. Bolink, and Eli Zysman-Colman|2016|Inorg.Chem.|55|10361|doi:10.1021/acs.inorgchem.6b01602

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(44'-di-t-butyl-22'-bipyridine)-bis(2-(pyridin-2-yl)-5-(trifluoromethyl)phenyl)-iridium hexafluorophosphateExperimental 3D Coordinates
researchProduct

CCDC 1423258: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(35-difluoro-2-(4-mesitylpyridin-2-yl)phenyl)-((oxydi-21-phenylene)bis(diphenylphosphine))-iridium hexafluorophosphate diethyl ether solvateExperimental 3D Coordinates
researchProduct

CCDC 1490430: Experimental Crystal Structure Determination

2016

Related Article: Amlan K. Pal, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortı́, Ifor D. W. Samuel, Henk J. Bolink, and Eli Zysman-Colman|2016|Inorg.Chem.|55|10361|doi:10.1021/acs.inorgchem.6b01602

Space GroupCrystallography(44'-di-t-butyl-22'-bipyridine)-bis(2-(pyridin-2-yl)-5-((trifluoromethyl)sulfanyl)phenyl)-iridium hexafluorophosphateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1423257: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal SystemCrystal Structurebis(35-difluoro-2-(4-mesitylpyridin-2-yl)phenyl)-((99-dimethyl-9H-xanthene-45-diyl)bis(diphenylphosphine))-iridium hexafluorophosphateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1053871: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(44'-di-t-butyl-22'-bipyridine)-bis(5-(pentafluorosulfanyl)-2-(1H-pyrazol-1-yl)phenyl)-iridium(iii) hexafluorophosphate dichloromethane solvateExperimental 3D Coordinates
researchProduct

CCDC 1423256: Experimental Crystal Structure Determination

2015

Related Article: Diego Rota Martir, Ashu K. Bansal, Vincent Di Mascio, David B. Cordes, Adam F. Henwood, Alexandra M. Z. Slawin, Paul C. J. Kamer, Laura Martínez-Sarti, Antonio Pertegás, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2016|Inorg.Chem.Front.|3|218|doi:10.1039/C5QI00177C

Space GroupCrystallographyCrystal SystemCrystal Structurebis(35-Difluoro-2-(pyridin-2-yl)phenyl-CN)-(ethene-12-diylbis(diphenylphosphine))-iridium hexafluorophosphate diethyl ether solvateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1490431: Experimental Crystal Structure Determination

2016

Related Article: Amlan K. Pal, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortı́, Ifor D. W. Samuel, Henk J. Bolink, and Eli Zysman-Colman|2016|Inorg.Chem.|55|10361|doi:10.1021/acs.inorgchem.6b01602

(44'-di-t-butyl-22'-bipyridine)-bis(2-(pyridin-2-yl)-5-((trifluoromethyl)sulfonyl)phenyl)-iridium hexafluorophosphateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct