Ahmed Zewai, the Nobel Prize in Chemistry, is the pioneer of femtochemistry, which aims to improve solar cells and make possible the artificial photosynthesis.

Publié le par Sahar@Green

The Egyptian Ahmed Zewail Received in 1999 the Nobel Prize in Chemistry. Zewail's key work has been as the pioneer of femtochemistry—i.e. the study of chemical reactions across femtoseconds.

Using a rapid ultrafast laser technique (consisting of ultrashort laser flashes), the technique allows the description of reactions on very short time scales - short enough to analyse transition states in selected chemical reactions. Two decades years after, it is possible now, with the spectroscopy attoseconde (1 attoseconde = 10 - 18 sec), to measure the electronic movement during a chimical reaction.

These technics initiatied by the Nobel Prize Ahmed Zewail, have an immense interest in the analysis of photochemical processes, because this domain of research aims to improve solar cells and to make possible the artificial photosynthesis.

By HADROUG Nasser

Sahara Green

Publié dans Solar Power

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