Knudsen cells used for molecular beam deposition of organic materials are usually derived from the ones employed for conventional epitaxy of inorganic semiconductors. However, organic molecular materials need rather low evaporation temperatures and a very precise temperature control in the range from 100 to 400 degreesC. Therefore, a thermal model of the cell is needed, which, taking into account the peculiarity of organic molecular beam deposition, gives the thermal dynamics of the cell and can be used for developing accurate algorithms for thermal programming and control. In this article such a model is developed and fully assessed through a comparison with experimental results; on this basis, all information necessary fur precisely controlling and programming Knudsen cells for organics is obtained. (C) 2001 American Vacuum Society

Pinotti, E., Sassella, A., Borghesi, A. (2001). Thermal model of Knudsen cells for organic molecular beam deposition. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A. VACUUM, SURFACES, AND FILMS, 19(3), 878-882 [10.1116/1.1368199].

Thermal model of Knudsen cells for organic molecular beam deposition

SASSELLA, ADELE;BORGHESI, ALESSANDRO
2001

Abstract

Knudsen cells used for molecular beam deposition of organic materials are usually derived from the ones employed for conventional epitaxy of inorganic semiconductors. However, organic molecular materials need rather low evaporation temperatures and a very precise temperature control in the range from 100 to 400 degreesC. Therefore, a thermal model of the cell is needed, which, taking into account the peculiarity of organic molecular beam deposition, gives the thermal dynamics of the cell and can be used for developing accurate algorithms for thermal programming and control. In this article such a model is developed and fully assessed through a comparison with experimental results; on this basis, all information necessary fur precisely controlling and programming Knudsen cells for organics is obtained. (C) 2001 American Vacuum Society
Articolo in rivista - Articolo scientifico
molecular beam epitaxy; organic molecular materials; sublimation; Knudsen cell.
English
2001
19
3
878
882
none
Pinotti, E., Sassella, A., Borghesi, A. (2001). Thermal model of Knudsen cells for organic molecular beam deposition. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A. VACUUM, SURFACES, AND FILMS, 19(3), 878-882 [10.1116/1.1368199].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/483
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