2021
Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting
Spies J, Swierk J, Kelly H, Capobianco M, Regan K, Batista V, Brudvig G, Schmuttenmaer C. Tuning the Conduction Band for Interfacial Electron Transfer: Dye-Sensitized Sn x Ti1–x O2 Photoanodes for Water Splitting. ACS Applied Energy Materials 2021, 4: 4695-4703. DOI: 10.1021/acsaem.1c00305.Peer-Reviewed Original ResearchDFT calculationsAbsorption spectroscopyInterfacial electron transfer dynamicsUltrafast transient absorption spectroscopyInterfacial electron transferElectron transfer dynamicsUltrafast electron injectionConduction bandPeriodic DFT calculationsTransient absorption spectroscopyLinear absorption spectroscopyDye sensitizersWater splittingElectron transferTransfer dynamicsComposition of SnElectron acceptorAbsorption spectraElectron injectionD characterElectronic statesSpectroscopyPhotoanodeSnDye
2020
Surface-Attached Molecular Catalysts on Visible-Light-Absorbing Semiconductors: Opportunities and Challenges for a Stable Hybrid Water-Splitting Photoanode
Liu H, Cody C, Jayworth J, Crabtree R, Brudvig G. Surface-Attached Molecular Catalysts on Visible-Light-Absorbing Semiconductors: Opportunities and Challenges for a Stable Hybrid Water-Splitting Photoanode. ACS Energy Letters 2020, 5: 3195-3202. DOI: 10.1021/acsenergylett.0c01719.Peer-Reviewed Original ResearchMolecular water oxidation catalystsWater splitting photoanodesSolar fuel generationWater oxidation catalystsHybrid photoanodeLong-term stabilityMolecular catalystsFuel generationCharacterization techniquesPhotoanodeStudy of degradationGreat promiseCell consistsCatalystPractical applicationsSemiconductorsDesign strategyStabilityCrucial subjectFuture directionsApplicationsPromiseDegradation
2014
Photoelectrochemical oxidation of a turn-on fluorescent probe mediated by a surface MnII catalyst covalently attached to TiO2 nanoparticles
Durrell A, Li G, Koepf M, Young K, Negre C, Allen L, McNamara W, Song H, Batista V, Crabtree R, Brudvig G. Photoelectrochemical oxidation of a turn-on fluorescent probe mediated by a surface MnII catalyst covalently attached to TiO2 nanoparticles. Journal Of Catalysis 2014, 310: 37-44. DOI: 10.1016/j.jcat.2013.07.001.Peer-Reviewed Original ResearchVisible light illuminationTwo-proton oxidationHigh fluorescence quantum yieldFluorescence quantum yieldMultielectron chemistryOrganic linkersSustained photocurrentManganese complexesEffective photoanodeTiO2 electrodeNew photoanodesPhotoelectrochemical oxidationFluorescent behaviorTwo-electronBare TiO2TiO2 nanoparticlesFluorescent probeFluorescent compoundsQuantum yieldNanomolar sensitivityOxidationPhotoanodeExcellent substrateSubstrate oxidationReal-time monitoring
2013
Electron Injection Dynamics from Photoexcited Porphyrin Dyes into SnO2 and TiO2 Nanoparticles
Milot R, Moore G, Crabtree R, Brudvig G, Schmuttenmaer C. Electron Injection Dynamics from Photoexcited Porphyrin Dyes into SnO2 and TiO2 Nanoparticles. The Journal Of Physical Chemistry C 2013, 117: 21662-21670. DOI: 10.1021/jp406734t.Peer-Reviewed Original ResearchElectron injection dynamicsTime-resolved terahertz spectroscopyTiO2 conduction band edgeElectron injectionInjection dynamicsSnO2 nanoparticle surfaceElectron injection rateConduction band edgePorphyrin dyesWater oxidationNanoparticle surfaceBand edgeDeactivation routeZinc derivativeSoret band excitationExcited-state energiesTiO2 nanoparticlesDyeOnly dyeKinetic considerationsExcited statesTerahertz spectroscopyBand excitationSensitizersPhotoanodeModular Assembly of High-Potential Zinc Porphyrin Photosensitizers Attached to TiO2 with a Series of Anchoring Groups
Martini L, Moore G, Milot R, Cai L, Sheehan S, Schmuttenmaer C, Brudvig G, Crabtree R. Modular Assembly of High-Potential Zinc Porphyrin Photosensitizers Attached to TiO2 with a Series of Anchoring Groups. The Journal Of Physical Chemistry C 2013, 117: 14526-14533. DOI: 10.1021/jp4053456.Peer-Reviewed Original Research
2012
Bioinspired High-Potential Porphyrin Photoanodes
Moore G, Konezny S, Song H, Milot R, Blakemore J, Lee M, Batista V, Schmuttenmaer C, Crabtree R, Brudvig G. Bioinspired High-Potential Porphyrin Photoanodes. The Journal Of Physical Chemistry C 2012, 116: 4892-4902. DOI: 10.1021/jp210096m.Peer-Reviewed Original ResearchPorphyrin radical cationRadical cationPhotoelectrochemical cellsReduction potentialDye-sensitized solar cellsElectrochemical reduction potentialsMetal oxide surfacesRedox coupleAppropriate energeticsElectron mediatorOxidation powerSpectroscopic studiesPhotoelectrochemical measurementsSnO2 nanoparticlesBare anodeVisible regionTerahertz spectroscopic studyReaction centersCationsSolar cellsPhotoanodeAnodeNatural counterpartsConduction bandSensitizers
2011
A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst
Moore G, Blakemore J, Milot R, Hull J, Song H, Cai L, Schmuttenmaer C, Crabtree R, Brudvig G. A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst. Energy & Environmental Science 2011, 4: 2389-2392. DOI: 10.1039/c1ee01037a.Peer-Reviewed Original Research