Sökning: "Burkhard Zietz"

Hittade 2 avhandlingar innehållade orden Burkhard Zietz.

1. 1. An Ultrafast Spectroscopic and Quantum-Chemical Study of the Photochemistry of Bilirubin : Initial Processes in the Phototherapy for Neonatal Jaundice

   Författare :Burkhard Zietz; Tomas Gillbro; Jouko Korppi-Tommola; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bilirubin; Phototherapy; Neonatal Jaundice; Femtosecond Spectroscopy; CASSCF; TD-DFT; Isomerisation Dynamics; Biophysical chemistry; Biofysikalisk kemi;

   Sammanfattning : Bilirubin is a degradation product of haem, which is constantly formed in allmammals. Increased levels of bilirubin in humans lead to jaundice, a conditionthat is very common during the first days after birth. This neonataljaundice can routinely be treated by phototherapy without any serious sideeffects. LÄS MER

3. 2. Exploring Organic Dyes for Grätzel Cells Using Time-Resolved Spectroscopy

   Författare :Ahmed M. El-Zohry; Burkhard Zietz; Ana Morandeira; Leif Hammarström; Eric Vauthey; Uppsala universitet; []
   Nyckelord :Laser spectroscopy; DSSCs; DSC; Electron dynamics; Deactivation processes; Isomerization; Twisting; TICT; Quenching by protons; Semiconductor; Electrolyte; Electron injection; Regeneration; Recombination; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi; Kemi med inriktning mot kemisk fysik; Chemistry with specialization in Chemical Physics;

   Sammanfattning : Grätzel cells or Dye-Sensitized Solar Cells (DSSCs) are considered one of the most promising methods to convert the sun's energy into electricity due to their low cost and simple technology of production. The Grätzel cell is based on a photosensitizer adsorbed on a low band gap semiconductor. LÄS MER