Slow back electron transfer in surface-modified TiO2 nanoparticles sensitized by alizarin

Article Abstract:

An investigation conducted to determine the effect of surface modification on the back electron transfer (BET) reaction of Alz-sensitized TiO2 nanoparticles using the femtosecond transient absorption technique in the visible and near-IR region is presented. It is shown that on surface modification, the rate of the BET reaction can be reduced drastically in the dye-sensitized TiO2 nanoparticle system.

Observations, Titanium dioxide, Chemical properties, Alizarin

---

Ultrafast intermolecular electron transfer dynamics: Perylene in electron-accepting micellar medium

Article Abstract:

The dynamics of ultrafast photoinduced intermolecular electron transfer from the excited singlet state of perylene to an electron-accepting cationic surfactant molecule namely N-cetylpyridinium chloride in aqueous micellar solutions is investigated using the femtosecond transient absorption technique with temporal resolution of 120 fs.

Science & research, Research, Micelles, Excited state chemistry

---

Effect of molecular structure on interfacial electron transfer dynamics of 7-N,N-dimethyl coumarin 4-acetic acid (DMACA) and 7-hydroxy coumarin 4-acetic acid (HCA) sensitized TiO2 and ZrO2 nanoparticles

Article Abstract:

The effect of molecular structure on interfacial electron transfer dynamics of 7-N,N-dimethyl coumarin 4-acetic acid (DMACA) and 7-hydroxy coumarin 4-acetic acid (HCA) sensitized TiO2 and ZrO2 nanoparticles is studied. Sub-picosecond transient absorption spectroscopy is used for this purpose.

Analysis, Molecular structure, Electron-positron interactions

Similar abstracts:

• Abstracts: Photoinduced electron transfer between chlorophyll a and gold nanoparticles. Green emission to probe photoinduced charging events in ZnO-Au nanoparticles charge distribution and Fermi-level equilibration
• Abstracts: Electromagnetic interactions in plasmonic nanoparticle arrays. Optical scattering from isolated metal nanoparticles and arrays
• Abstracts: Formation of Schottky defects at the surface of MgO, TiO2, and SnO2: A comparitive density functional theoretical study
• Abstracts: Electrochemical oxidation of methanol on Pt nanoparticles dispersed on RuO2. Microstructural heterogeneity for electrochemical activity in polycrystalline diamond thin film observed by electrogenerated chemiluminescence imaging
• Abstracts: Carbon-nanotube-enhanced direct electron-transfer reactivity of hemoglobin immobilized on polyurethane elastomer film

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.