Method for depositing a functional material on a substrate
A method for depositing a functional material on a substrate is disclosed. An optically transparent plate having a first surface and a second surface with one or more wells is provided. After coating the second surface with a thin layer of light-absorbing material, the wells are filled with a functional material. The plate is then irradiated with a pulsed light to heat the layer of light-absorbing material in order to generate gas at an interface between the layer of light-absorbing material and the functional material to release the functional material from the wells onto a receiving substrate located adjacent to the plate.
1. A method for depositing a functional material on a substrate, said method comprising:
providing a plate having a first surface and a second surface, wherein said second surface is curved;
removing materials from said second surface to form a first well and a second well within said second surface;
coating said second surface of said plate and said first and second wells within said second surface of said plate with a layer of light-absorbing material such that said layer of light-absorbing material is in complete contact with entire surfaces of said first and second wells formed by only said plate;
filling said first and second well within said second surface of said plate with a functional material after said coating of said light-absorbing material layer; and
irradiating said plate with a pulsed light from a non-collimated light source to heat said light-absorbing material in order to generate gas at an interface between said light-absorbing material and said functional material to release said functional material from said well onto a receiving substrate.
2. The method of claim 1 , wherein said receiving substrate's surface for receiving said functional material is curved.
3. The method of claim 1 , wherein said first and second wells have different depths.
4. The method of claim 1 , wherein said plate including said entire well is optically transparent.
5. The method of claim 1 , wherein said plate is made of quartz.
6. The method of claim 1 , wherein said light-absorbing material is tungsten.
7. The method of claim 1 , wherein said non-collimated light source is a flashlamp.
8. The method of claim 1 , wherein said non-collimated light source is a laser and a waveguide.