| 摘要 |
A film of a coating material is produced on a substrate (22) by a pulsed laser deposition method in which the material that forms the coating material is first combined with a matrix material to form a target (16). The target (16) is then exposed to a source of laser energy (12) to desorb the matrix material from the target (16) and lift the coating material from the surface of the target (16). The target (16) and the substrate (22) are oriented with respect to each other so that the lifted coating material is deposited as a film upon said substrate (22). The matrix material is selected to have the property of being more volatile than the coating material and less likely than the coating material to adhere to the substrate (22). The matrix material is further selected as having the property such that when the target (16) is exposed to a source of laser energy (12), the matrix material desorbs from the target (16) and lifts the coating material from the surface of the target (16). In another aspect of the invention, a method of making an improved chemical or biochemical sensing device that includes a chemoselective or bioselective coating on a substrate (22) is carried out by coating the substrate (22) by pulsed laser deposition. |
