[article]
| Titre : |
Charge carrier transfer : A neglected process in chemical engineering |
| Type de document : |
texte imprimé |
| Auteurs : |
Jacek Tyczkowski, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
pp. 9565–9579 |
| Note générale : |
Chimie industrielle |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Carrier transfer |
| Résumé : |
This paper presents the discussion that charge carrier transfer should be treated by modern chemical engineering on equal terms with other transfer processes such as mass, heat, and momentum transfer. In an age when chemical engineering is entering the field of electronics, electrostatics, and electrochemistry, more and more often involving examination down to the molecular level, it is impossible to describe much phenomena without taking into consideration the charge carrier transfer. The discussion, the main goal of which is to familiarize chemical engineers with the fundamentals of charge transfer processes, is focused on covalent amorphous materials that are particularly interesting for advanced technologies. The paper presents a review of the generation mechanisms (band-to-band generation, Poole−Frenkel mechanism, charge carrier injection from contacts, photogeneration) and transport mechanisms (band transport, hopping transport) governing the charge carrier transfer on the molecular level. The problems with determining the dominant mechanisms for a given material are also discussed. Finally, specific examples of the use of the charge carrier transfer in chemical engineering are presented. The main attention is focused on electrochemical devices, electrocatalysis, photocatalysis, charging phenomena, and single-molecule engineering. |
| DEWEY : |
660 |
| ISSN : |
0888-5885 |
| En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie101069w |
in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9565–9579
[article] Charge carrier transfer : A neglected process in chemical engineering [texte imprimé] / Jacek Tyczkowski, Auteur . - 2011 . - pp. 9565–9579. Chimie industrielle Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9565–9579
| Mots-clés : |
Carrier transfer |
| Résumé : |
This paper presents the discussion that charge carrier transfer should be treated by modern chemical engineering on equal terms with other transfer processes such as mass, heat, and momentum transfer. In an age when chemical engineering is entering the field of electronics, electrostatics, and electrochemistry, more and more often involving examination down to the molecular level, it is impossible to describe much phenomena without taking into consideration the charge carrier transfer. The discussion, the main goal of which is to familiarize chemical engineers with the fundamentals of charge transfer processes, is focused on covalent amorphous materials that are particularly interesting for advanced technologies. The paper presents a review of the generation mechanisms (band-to-band generation, Poole−Frenkel mechanism, charge carrier injection from contacts, photogeneration) and transport mechanisms (band transport, hopping transport) governing the charge carrier transfer on the molecular level. The problems with determining the dominant mechanisms for a given material are also discussed. Finally, specific examples of the use of the charge carrier transfer in chemical engineering are presented. The main attention is focused on electrochemical devices, electrocatalysis, photocatalysis, charging phenomena, and single-molecule engineering. |
| DEWEY : |
660 |
| ISSN : |
0888-5885 |
| En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie101069w |
|
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