| 摘要 |
<p>The present invention relates to an apparatus for evaporation comprising a vacuum chamber (12), a substrate stage (2) defining a substrate plane (26) and at least one effusion cell (6), the effusion cell comprising a crucible (7) having a volume, wherein said effusion cell, crucible and substrate stage are arranged inside the vacuum chamber. The crucible comprises a first end (14), a second end (15), at least one side wall (16) and an aperture (17). In a typical apparatus according to the invention the aperture is situated in the first wall or in a side wall closer to the first end than the second end, the second end arranged closer to the substrate plane than the first end. The invention also relates to a crucible for evaporation, having a volume, comprising a first end, a second end, at least one side wall and an aperture. The invention further relates to a method of growing a film on a substrate.
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